why were scientists hesitant to support wegener and hess when they first presented their hypotheses.

a substance is a molecular compound which is miscible (dissolves) in oil but is immiscible (does not dissolve) in water. the molecules of that substance are very likely: to other oil molecules than water molecules, and water molecules are attracted much more between themselves than with the oil.  

Immiscible liquids cannot combine to cause a phase change. Oil and water are examples of immiscible liquids that layer on top of one another. Liquid immiscibility is the property of two or even more liquids existing in equilibrium. Interest in petrogenetics has been sparked by the idea that a homogenous magmatic liquid can divide into a secondary liquid form in reaction to a change in pressure or chemistry. Miscibility is the capacity of two liquids to mix equally in all amounts. The expression is most frequently used to describe liquids, even though it also applies to solids and gases.

Learn more about miscibility here:

https://brainly.com/question/1593906

#SPJ4

Grignard reactions involve the use of organometallic reagents known as Grignard reagents.

Protons are subatomic particles that exist in the nuclei of atoms. They have a positive electrical charge and a mass of approximately 1.67 x 10⁻²⁷ kg. Protons are the most common type of particle in the universe and are essential for the structure and stability of atoms.

A Grignard reagent is a special type of organometallic compound that consists of a carbon atom attached to an alkyl or aryl group via a single bond, and a magnesium atom attached to the carbon atom via a single, polar covalent bond. Typical Grignard reagents used in lab include ethylmagnesium bromide, methylmagnesium bromide, phenylmagnesium bromide, and benzylmagnesium chloride. These reagents are used in combination with an organic halide, such as an alkyl or aryl halide, to form an organometallic compound. The organic halide and Grignard reagent are reacted together in a solvent, such as ether, to form the Grignard reagent, which can then be used to form other organometallic compounds and to carry out various reactions.

To learn more about protons

https://brainly.com/question/1481324

#SPJ4

Answer: Can i see the question

Explanation:

In solution 4 of part b, both the hydronium concentration and hydroxide concentration are 1 M due to the neutralization reaction between HCl and NaOH. The initial concentrations of H₃O⁺ and OH⁻ were 0.1 M, but they reacted to form water and resulted in equal final concentrations of 1 M for both ions.

To calculate the hydronium and hydroxide concentrations for solution 4 in part b, we need to first understand the equation for the reaction that occurred.

The equation given is: HCl + NaOH -> NaCl + H₂O

This tells us that one mole of HCl reacts with one mole of NaOH to produce one mole of NaCl and one mole of water.

Based on this equation, we know that the initial concentration of hydroxide ions (OH-) in solution 4 is equal to the initial concentration of sodium hydroxide (NaOH), which was given as 0.1 M.

Next, we need to determine the concentration of hydronium ions (H₃O⁺). Since HCl is a strong acid, it completely dissociates in water to produce H₃O⁺ and Cl⁻ ions. Therefore, we can assume that the initial concentration of H₃O⁺ is equal to the initial concentration of HCl, which was also given as 0.1 M.

Now, let's consider what happens when the HCl and NaOH are mixed together. They react to form NaCl and water, which means that the concentrations of H₃O⁺ and OH⁻ will change.

From the equation, we can see that the reaction consumes one mole of HCl and one mole of NaOH. This means that the final concentration of HCl and NaOH will both be zero.

To determine the final concentration of OH-, we need to use the fact that the reaction produces one mole of water for every mole of NaOH that reacts. Therefore, the final concentration of OH⁻ will be equal to the initial concentration of NaOH (0.1 M) divided by the volume of the solution.

If we assume that the volume of the solution is 100 mL (as stated in the question), then the final concentration of OH- will be:

[OH⁻] = 0.1 M / 0.1 L = 1 M

Finally, we can use the fact that the concentration of H₃O⁺ and OH⁻ must be equal in a neutral solution to determine the final concentration of H₃O⁺.

Since the final concentration of OH⁻ is 1 M, we know that the final concentration of H₃O⁺ must also be 1 M.

To know more about the hydronium & hydroxide concentrations refer here :

https://brainly.com/question/29286376#

#SPJ11

Answer:

I am not for sure

Explanation:

Answer:

A.

Explanation:

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Xenon(Xe ) is the least abundant element on the earth. The correct option is option A.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

Oxygen, water, and nitrogen are the most abundant molecule on the earth. Xenon is the least abundant amongst all given option. Xenon belongs to noble gas family. So, Xenon is not reactive at all.  Xenon does not form any compound with any other element so its abundance on earth is very less.

Therefore,  Xenon(Xe ) is the least abundant element on the earth. The correct option is option A.

To know more about element, here:

https://brainly.com/question/8460633

#SPJ2

Answer:

\(\Delta T=57.01^{\circ} C\)

Explanation:

Given that,

The mass of nickel, m = 70 g

Energy absorbed, Q = 1756 J

The specific heat of Nickel, c = 0.440 J/g °C

We know that,

The heat absorbed is given by :

\(Q=mc\Delta T\\\\\Delta T=\dfrac{Q}{mc}\\\\\Delta T=\dfrac{1756}{70\times 0.44}\\\\=57.01^{\circ} C\)

So, the change in temperature is equal to \(57.01^{\circ} C\).

The intensive properties among the options provided are:

A) a substance has a density of 4.13 g/cm3

D) a substance has a mass of 1.25 g

E) a substance has a volume of 5.4 mL

Intensive properties are those that do not depend on the amount or size of the substance but are characteristic of the substance itself.

These properties, density, mass, and volume, are intrinsic to the substance and do not change with the quantity of the substance present. They are independent of the amount of the substance and remain constant regardless of the sample size.

On the other hand, melting point (B) and malleability (C) are not considered intensive properties. Melting point can vary depending on external conditions such as pressure, and malleability is influenced by the structure and composition of the substance, which can be affected by impurities or processing methods. These properties can change with the amount or size of the substance and are considered extensive properties.

Learn more about Intensive properties from the link given below.

https://brainly.com/question/13055036

#SPJ2

Answer:

500ml

Explanation:

because 100 ×2 is 200 and the 300

500ml

The signal travels by depolarization and repolarization.

A signal, also known as an action potential, travels down a neuron by the process of depolarization and repolarization. When an electrical signal reaches the axon hillock, it triggers the opening of ion channels, which causes an influx of positively charged ions into the cell.

This influx leads to a local depolarization, which then triggers more ion channels to open and continue the depolarization along the length of the axon.

At the same time, potassium ion channels open, allowing potassium ions to exit the cell, causing repolarization. This cycle of depolarization and repolarization propagates the signal down the axon until it reaches the axon terminal, where it triggers the release of neurotransmitters, transmitting the signal to the next neuron or effector cell.

Learn more about neuron:https://brainly.com/question/29462317

#SPJ1

Answer:

4850.17

for an approximate result, multiply the mass value by 2.205

Explanation:

2200 Kg is an weight which is going to be 4850.17 pounds.

Kg is the unit and 2200 the amount of that unit. If your question wasn't that(looks like you might have missed something) then please put a comment so I can give you a better answer.

Answer:

lower viscosity than syrup

Answer:

higher viscosity than syrup flows more easily than syrup.

Please give me Brainliest answer

At pH 7.5, at what relative rate does the enzyme hydroxylate Compound 1 compared to nonproductively producing H2O2 as a result of interacting with lysine?

1. First, we need to know the specific enzyme's activity profile at different pH levels. This information can usually be found in the enzyme's literature or experimental data.

2. Locate the enzyme's activity at pH 7.5 for both the hydroxylation of Compound 1 and nonproductive production of H2O2 when interacting with lysine.

3. Divide the enzyme's activity for hydroxylation of Compound 1 at pH 7.5 by the activity for nonproductive production of H2O2 when interacting with lysine at pH 7.5.

4. The resulting value will represent the relative rate at which the enzyme hydroxylates Compound 1 compared to nonproductively producing H2O2 as a result of interacting with lysine at pH 7.5.

Please note that without specific information about the enzyme and its activity at different pH levels, it's impossible to provide a numerical answer for the relative rate.

To know more about enzyme's:

https://brainly.com/question/31561117

#SPJ11

Answer:

Thomson model of the atom

Explanation:

"plum pudding" from

raisins used to be called plums

distribution of electrons reminded many scientists of raisins

within Thomson's model's positively charged region of space

wikipedia

nuclearpowercom

Burning a steel wheel, a candle, some sulfur, or a splinter produces new chemicals which is an observable evidence that suggests combustion is a chemical transformation.

The five elements of chemical change are: color change, precipitate or gas production, gas formation, odor change, and temperature change. A chemical reaction in which both light and heat can be seen is the burning of wood. We refer to a reaction as being exothermic when it produces heat. In other words, heat is transmitted from the reactants to the environment outside. When a chemical interacts with oxygen to release energy, a combustion event will always take place. For instance, methane burns in oxygen and produces carbon dioxide and water as byproducts. The oxidation of the carbon in the methane is demonstrated by the production of carbon dioxide. Also, burning of substance results in the release of heat and light energy, which is a sign of chemical change.

To learn more about combustion click here https://brainly.com/question/14177748

#SPJ4

It will raise the concentration of OH- (aq), which will cause equilibrium to move in the other direction, causing the concentration of OH- (aq) to fall in order to restore balance.

The Latin term libra, which signifies weight or balance, is where the word equilibrium first appeared. Equilibrium can be visualized as an interesting story that is currently in rest. a vehicle that is going steadily. a chemical process where both the forward and backward rates of reaction are equal.

\(NH3(aq) + H2O (l) < === > NH4+ (aq) + OH- (aq)\)

NaOH is added to system \(: NaOH (aq) === > Na+ (aq) + OH- (aq)\)

(i) It will raise the concentration of OH- (aq), causing equilibrium to shift in a way that lowers the conc of OH- (aq) to attain equilibrium again: thus equilibrium will shift towards reactants (Left) .

(ii) Q\(= [OH-] [NH4+]/ [NH3] [H2O]\)

with increase in concentration of OH- (aq) (stress) ,value of Q​​​​​​​ will increase, since OH- appear in numerator .

(iii) Before equilibrium is re-established, rate of reverse reaction will exceed forward reaction, not vice-versa. As conc. of OH-(aq)decreases in towards reactants.

(iv) When equilibrium is re-established, rate of reverse reaction will be equal to rate of forward reaction, to maintain equilibrium.

To know more about Equilibrium visit :

https://brainly.com/question/29901689

#SPJ4

Here is the Answer I Hope this Helps:-

The closer the electrons are to the nucleus, the more tightly they are bound, thus increasing the electronegativity of the atom.

Answer:

Zinc oxide is react with sulphuric acid to give zinc sulphate and water.

zinc oxide +sulphuric acid ⇒ zinc sulphate + water

Zno    +H2So4 ⇒ZnSo4 + H2O

SULPHURIC ACID = H2SO4

ZINC SULPHATE =ZnO

Explanation:

The weather in an area is affected mostly by interactions between solar radiation, Earth's large ocean, diverse landscapes and motion in space.

Temperature, pressure, wind, humidity, and precipitation are known as the elements of weather and these factors are fundamental to describe the weather and climate of a particular region.

Weather and climate are influenced by interactions involving sunlight,  ocean, atmosphere, ice, landforms and living things. These interactions change with latitude, altitude, and local and regional geography, and all of which can affect oceanic and atmospheric flow patterns.

Factors that combine to influence the weather are solar radiation, amount of which changes with Earth's tilt, orbital distance from sun and latitude, temperature, air pressure and abundance of water.

To know more about elements of weather, refer

https://brainly.com/question/12249151

#SPJ4

To determine how much of solution A would be needed to generate the electrical energy used daily in the home

we need to calculate the ratio of the energy released by fusion of hydrogen to the electrical energy used daily.

Energy ratio = Energy released by fusion of hydrogen / Electrical energy used daily

Energy ratio = (8.4 x 10^12) / (3 x 10^8)

To simplify the calculation, we can convert the values to scientific notation with the same exponent:

Energy ratio = (8.4 / 3) x (10^12 / 10^8)

Energy ratio = 2.8 x 10^4

This means that for every unit of electrical energy used daily in the home, we would need 2.8 x 10^4 units of solution A to generate that energy.

Therefore, to generate the electrical energy used daily in the home, we would need 2.8 x 10^4 liters of solution A.

To learn more about  solution

https://brainly.com/question/25326161

#SPJ11

The acid that will react with strontium hydroxide to produce strontium chloride in a neutralization reaction is hydrochloric acid (HCl).

When strontium hydroxide reacts with hydrochloric acid, the products formed are strontium chloride (SrCl2) and water (H2O). The chemical equation for the neutralization reaction is as follows:

Sr(OH)2 + 2HCl → SrCl2 + 2H2O

Here, Sr(OH)2 is the base (strontium hydroxide) and HCl is the acid that undergoes a neutralization reaction. The products formed are a salt (strontium chloride) and water.

Neutralization reactions are a type of chemical reaction that occurs when an acid reacts with a base to form a salt and water.

learn more about neutralization reaction here

https://brainly.com/question/23008798

#SPJ11

An outline is a line drawn around an element, enclosing the element content, padding, and border spaces.

A form or figure's outline is defined by a line or combination of lines. The lines restrict the shape, isolating it inside the composition or the area. The shapes are created by the outlines.

The phrase "outline" in art refers to the lines, real or apparent, that define or confine a figure (or shape) within the field of vision, with the total number of these lines defining the contour of the figure.

An item is depicted by lines of contour without shade in an outline sketch or drawing, leaving out internal detail. A variety of markers are used to transform an object's seeming edge into a useful reference on paper.

To learn more about drawing refer to:

https://brainly.com/question/12100213

#SPJ4

The hematocrit of the larger individual should be higher than that of the smaller individual.

Hematocrit refers to the percentage of a person's total blood volume that is comprised of red blood cells (RBCs). Hematocrit levels typically differ between males and females. Males have a higher hematocrit level than females.

Red blood cells (RBCs) are the most numerous cells in the blood. They are responsible for transporting oxygen from the lungs to the rest of the body. The hematocrit of the larger individual should be higher than that of the smaller individual. This is because the hematocrit level in the blood is typically higher in individuals who are larger and weigh more.

The reason for this is that larger individuals have a greater blood volume, and so their blood has a higher concentration of red blood cells (RBCs). RBCs contain hemoglobin, which is responsible for carrying oxygen to the body's tissues. Thus, individuals with a higher hematocrit level typically have a greater capacity to transport oxygen to their tissues.

You can learn more about hematocrit at: brainly.com/question/29598303

#SPJ11

Based on the given description, the student is most likely describing a liquid.

As we know, liquids do not have any definite shape, but they do have a definite volume. This is because the particles of matter in a liquid are close together, but they are still able to flow past each other. Due to this property, liquid take the shape of its container.

Some examples of liquids include water, oil, and gasoline.

Other states of matter include solids and gases.

Solids have a definite shape and volume, and the particles of matter in a solid are not able to flow past each other.

Gases have no definite shape or volume, and the particles of matter in a gas are very far apart and are able to move freely.

Thus, the correct answer is liquids.

To learn more about liquids :

https://brainly.com/question/752663

#SPJ11

Lavoisier's Law states:

'Mass is neither created nor destroyed' in chemical reactions.

Explanation:

Percentage composition of oxygen = (80/134) * 100% = 59.7%.

But-2-ene is an acyclic alkene with four carbon atoms. It is the simplest alkene exhibiting cis/trans-isomerism; that is, it exists as two geometric isomers cis-but-2-ene and trans-but-2-ene.

It is a petrochemical, produced by the catalytic cracking of crude oil or the dimerization of ethylene.

Isomeric forms are 1-butene, cis-2-butene, trans-2-butene, and isobutylene.

The key difference between 1 butene and 2 butene is that 1-butene has a double bond between carbon atoms at the end of the carbon chain, whereas 2-butene has a double bond between carbon atoms at the middle of the compound.

Learn more about 2-butene here:

0.8 grams of CH4 are needed to react with 3.2 grams of O2.

To determine how many grams of CH4 are needed to react with 3.2 grams of O2, we'll first need to use stoichiometry and the balanced chemical equation for the reaction between methane (CH4) and oxygen (O2):

CH4 + 2O2 → CO2 + 2H2O

Step 1: Calculate moles of O2

First, convert grams of O2 to moles using its molar mass (32 g/mol):

3.2 g O2 × (1 mol O2 / 32 g O2) = 0.1 mol O2

Step 2: Use stoichiometry

According to the balanced equation, 1 mol of CH4 reacts with 2 mol of O2. Therefore, find the moles of CH4 needed to react with 0.1 mol O2:

0.1 mol O2 × (1 mol CH4 / 2 mol O2) = 0.05 mol CH4

Step 3: Convert moles of CH4 to grams

Finally, convert moles of CH4 to grams using its molar mass (16 g/mol):

0.05 mol CH4 × (16 g CH4 / 1 mol CH4) = 0.8 g CH4

So, 0.8 grams of CH4 are needed to react with 3.2 grams of O2.

Learn more about oxygen here,

https://brainly.com/question/382714

#SPJ11

The repulsion of the electron pair surrounding the core atom has a significant impact on the geometry or shape of the electron.

The tendency of the electron pairs in an atom to repel one another when they are present is known as electron pair repulsion.

The more repulsion there is between the electron pairs, the more the electrons want to organize themselves to lessen it.

Here, the issue of how electron pair repulsion affects molecule geometry is raised.

The fundamental explanation is that the molecule will change its structure to keep the repelling electron pair apart.

The electron pair repulsion also plays a significant role in determining molecular geometry, since molecules prefer to modify their form and geometry in response to the electron pair.

To know more about molecule visit:

brainly.com/question/19922822

#SPJ4