If two stars had equal absolute brightness, what else would most likely be equal?
O energy
O distance from Earth
O apparent magnitude
o chemical composition
help please time timed

The two factors must be considered when predicting whether two substances will dissolve in each other are type of bonds and size of the molecules are two factors.

Solubility is the ability of solute particles to dissolve in any solvent, and solubility is directly proportional to the dissolving ability of the solute.

Solubility of any substance depends on the type of the bond present in the solute molecule i.e. polar or non polar. And it is also depends on the size of the solute as size defines the surface tenssion of the substance.

Hence type of bonds and size of the molecules are two factors.

To know more about dissolution, visit the below link:
https://brainly.com/question/26073928

#SPJ1

Answer

o double covalent bond is cteated.

Answer:

a 0.22L

Explanation:

Answer:

A

Explanation:

1 moles of oxygen is 0.044L

A chemical property of a substance is a certain characteristic that can only be observed by participating in a chemical reaction. Alternatively, a chemical property of a substance is something that can only be observed when the substance undergoes a chemical change.

I'm not sure what you're supposed to do with the first four boxes; all four are examples of chemical properties. Do you have to name the specific type of chemical property as given in the description? If so, the following would be my answers:

Flammability/Combustibility: The ability of a substance to burn.

The next two are quite strange; I'm not aware of a term that cleanly describes reactivity with water or acid. I suspect that, given the level of the material here, the general property of "reactivity" might be the answer for both the second and third descriptions

(Water-)reactivity: Some substances react when put in water.

(Acid-)reactivity: Some substances react when put in acid.

Light sensitivity: Light can interact with some things to form new substances.

As for the chart, I've filled it in as shown in the attached image. Please take care to double-check what I've written; in particular, when it comes to the property, I might have used a different term from what you were taught in class or provided in some other resource that I don't have access to. I've also color-coded qualitative/quantitative and physical/chemical for your convenience.

The two most significant synthetic reactions of Grignard reagents are addition to carbonyl compounds to produce alcohols and carbonation to make carboxylic acids.

To learn more about  Grignard reagent refer

https://brainly.com/question/29409446

#SPJ4

Answer:

that it i think

Explanation:

the earth revolves around the Sun once each year and spins on its axis of rotation once each day. This axis of rotation is tilted 23.5 degrees relative to its plane of orbit around the Sun. The axis of rotation is pointed toward Polaris the North Star. As the Earth orbits the Sun the tilt of Earth’s axis stays lined up with the North Star.

Answer and explanation:

A) An ideal fuel must:

- easy to transport and storage.

- have a high calorific value.

B) The calorific value for a fuel is the amount of heat - measured in Joules- which is produced during the complete combustion of the fuel. It is expressed in Joules per Kg of fuel (J/kg).

C) From the data:

mass of fuel = 2 kg

heat produced = 48,000 KJ

We calculate the calorific value by dividing the heat produced by the mass of fuel, as follows:

calorific value = heat produced/mass of fuel = (48,000 KJ)/(2 kg)= 24,000 kJ/kg

Since 1 KJ= 1000 J, we can express the calorific value in J/kg as follows:

24,000 kJ/kg x 1000 J/1 kJ = 2.4 x 10⁷ J/kg

Answer:

a.) open spaces in waters solid structure makes its solid state less dense than its liquid state.

Answer: It is a.) open spaces in waters solid structure makes its solid state less dense than its liquid state.

Explanation: This is because the solid state of water is less dense than its liquid state due to free spaces in its solid structure.

The wavelength of the photons supplied to the pool can be calculated using the formula E = hc/λ, where E is the energy, h is Planck's constant, c is the speed of light, and λ is the wavelength.

First, let's calculate the energy supplied to the pool. The energy required to raise the temperature of 1 mole of water by 1°C is given as 4.18 J/g. Since we have 26.0 moles of photons, we need to multiply the energy per mole by the number of moles: 4.18 J/g * 26.0 moles = 108.68 J.

We know that E is 108.68 J, h is 6.63 x 10^-34 Js (Planck's constant), and c is approximately 3.00 x 10^8 m/s (speed of light). Rearranging the formula, we have λ = hc/E. Plugging in the values, we get λ = (6.63 x 10^-34 J•s * 3.00 x 10^8 m/s) / 108.68 J. After performing the calculation, we find that the wavelength of the photons is approximately 1.83 x 10^-6 meters. To convert meters to nanometers, we multiply by 10^9: 1.83 x 10^-6 meters * 10^9 = 1830 nm. Therefore, the wavelength of the photons supplied to the pool is approximately 1830 nm.

To know more about photons visit:

https://brainly.com/question/32364752

#SPJ11

The wavelength of the photons is approximately 1000 nm

To find the wavelength of the photons, we can use the formula:

Energy = Planck's constant * speed of light / wavelength

First, let's calculate the energy supplied to the pool:

Energy = 4.18 J/g * 26.0 moles * (18 g/mole) * 1°C
Energy = 1979.28 J

Next, we can use the energy equation to find the wavelength:

1979.28 J = Planck's constant * speed of light / wavelength

The Planck's constant is approximately 6.626 x \(10^{-34}\) J·s, and the speed of light is approximately 3 x \(10^{8}\) m/s.

Wavelength = (Planck's constant * speed of light) / Energy
Wavelength = (6.626 x \(10^{-34}\) J·s * 3 x \(10^{-8}\) m/s) / 1979.28 J

Wavelength ≈ \(10^{-6}\) m

Finally, we can convert the wavelength to nanometers:

Wavelength in nm = (\(10^{-6}\) m) * (\(10^{9}\) nm/m)
Wavelength in nm ≈ 1000 nm

Therefore, the wavelength of the photons is approximately 1000 nm.

Learn more about wavelength :

https://brainly.com/question/31143857

#SPJ11

Answer:

Because dipole - dipole force is stronger than london dispersion force

Explanation:

Intermolecular forces determines a wide range of physical properties of matter of which melting point is one of them.

Both london dispersion forces and dipole- dipole forces are vanderwaals force.

But diople - dipole forces exists between polar molecules which are molecules with permanent dipoles.

In london dispersion forces the dipole is temporary

Answer:

= 0.8

not really sure about the answer I just guessed it

am sorry if it's wrong

AMSWER :

CHEMICAL FORMULA :

• WATER - H2O

• CARBONDIOXIDE - CO2

• SODIUM HYDROXIDE - NaOH

• SULPHURIC ACID - H2SO4

• SODIUM CHLORIDE - NaCI

• SODIUM BICARBONATE - NaCHO3

According to the given picture:

A represents the atomic number.

B represents the chemical symbol.

C represents the atomic mass.

D represents the name of the element.

Answer:

C.) 4.85 x 10⁻¹⁹ J

Explanation:

To find the energy, you need to use the following equation:

E = hc / w

In this formula,

-----> E = energy (J)

-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)

-----> c = speed of light (3.00 x 10⁸ m/s)

-----> w = wavelength (m)

Once you have converted nanometers to meters, you can plug the given values into the equation and solve.

410 nm                1 m
-------------  x  ----------------------  =  4.10 x 10⁻⁷ m
                        1 x 10⁹ nm

E = hc / w

E = (6.626 x 10⁻³⁴ J*s)(3.00 x 10⁸ m/s) / (4.10 x 10⁻⁷ m)

E = 4.85 x 10⁻¹⁹ J

Answer:

computer hardware is a collection of a physical part of a computer system

examples = CPU , monitor , mouse etc

The sum of all coefficients in the balanced equation answer is 38.

The given redox reaction is:

Cro2-(aq) + Clo-(aq) + H2O(l) → Cro42-(aq) + Cl2(g)

To balance this equation in basic medium, we first balance the oxygen atoms by adding H2O to the appropriate side of the equation:

Cro2-(aq) + Clo-(aq) + 2H2O(l) → Cro42-(aq) + Cl2(g)

Now, we balance the hydrogen atoms by adding OH- to the appropriate side of the equation:

Cro2-(aq) + Clo-(aq) + 2H2O(l) → Cro42-(aq) + Cl2(g) + 2OH-(aq)

Next, we balance the charge on both sides of the equation by adding electrons:

Cro2-(aq) + 14H+(aq) + 6Clo-(aq) → 2Cro42-(aq) + 3Cl2(g) + 12H2O(l) + 6e-

Now, we need to balance the electrons on both sides of the equation. To do this, we add 6 electrons to the left side:

Cro2-(aq) + 14H+(aq) + 6Clo-(aq) + 6e- → 2Cro42-(aq) + 3Cl2(g) + 12H2O(l) + 6e-

Finally, we cancel out the electrons on both sides of the equation and simplify:

Cro2-(aq) + 14H+(aq) + 6Clo-(aq) → 2Cro42-(aq) + 3Cl2(g) + 12H2O(l)

The sum of all coefficients in the balanced equation is:

1 + 14 + 6 + 2 + 3 + 12 = 38

Therefore, the answer is 38.

Learn more about balanced equation  here:

https://brainly.com/question/31242898

#SPJ11

Solution :

Sir Isaac Newton was a great scientist. The discoveries of the Newton change the way we see the world. Newton gave us the fundamental principles through which the entire universe is governed.

Newtons 1st law of motion states that a body moves or stays in position until and unless an external force is applied to the body.

This is the law of nature.

An example which do not support this law can be a body having a huge mass and a small boy applies force to move it but is unable to move the body.

Answer: the first option

Explanation:

Direction has nothing to do with the speed/ kinetic energy

Answer: A

Explanation:

Answer:

Microwaves are best suited because

they have a higher frequency and small wavelength

Satellite communication and Earth observation from space benefit from microwaves that can pass through haze, light rain, snow, clouds, and smoke. Because they can penetrate the atmosphere, microwaves are used. Small wavelength and high frequency is employed for this.

Microwaves are radio waves with short wavelengths and frequencies in the gigahertz (GHz) range. They can send signals over great distances without any data loss thanks to their high frequency. Without producing signal overlap or interference, they may carry a wide range of frequencies.

Electromagnetic radiations include radio waves and microwaves. In communication, both are utilized. Television and radio programs are transmitted by radio waves, but mobile phones and Wi-Fi use microwaves. Radio waves are one of the several alternatives for satellite communication.

To know more about microwaves, visit;

https://brainly.com/question/16188419

#SPJ6

Explanation:

I answered your question in the submitted photo

Answer:

Several heavy elements, such as uranium, thorium, and plutonium, undergo both spontaneous fission, a form of radioactive decay and induced fission, a form of nuclear reaction.

Answer:

melting point

Explanation:

Phase changes happen when you reach certain special points. Sometimes a liquid wants to become a solid. Scientists use something called a freezing point or melting point to measure the temperature at which a liquid turns into a solid. There are physical effects that can change the melting point.

Mark me as brain list plz

Answer:

Homeostasis helps animals maintain stable internal and external environments with the best conditions for it to operate. It is a dynamic process that requires constant monitoring of all systems in the body to detect changes, and mechanisms that react to those changes and restore stability.

Explanation:

i would say C. i hope im right

sorry if you get it wrong

Answer:

mass

Explanation:

mass is weight mass is weight mass is weight

Examples of erosion or corrosion caused by water include: An coastal beach's rocks are battered by the waves. Small rocks are carried down a hillside by a river. A tunnel is created when underground water dissolves limestone.

Rust, which results from oxidation, and acid rain, which is brought on when carbonic acid dissolves rocks, are two instances of chemical weathering. additional molecular weathering.

On a mountainside, tiny rock fragments break off due to wind and precipitation. Chemical and mechanical mechanisms can cause weathering. The migration of particles away from their source is erosion. A tiny rock fragment is carried away from a mountainside by the wind as an illustration of erosion.

To know more about corrosion visit:-

https://brainly.com/question/30057568

#SPJ1

The strongest absorbance of blue food dye will be in the orange wavelength, not the blue wavelength.

The strongest absorbance of blue food dye is not blue light because it absorbs light in the complementary color to blue, which is orange. This is due to the fact that when a substance absorbs light in a certain wavelength, it reflects the complementary color. So, when blue food dye absorbs orange light, it reflects blue light, which is why it appears blue to our eyes. This phenomenon is known as the Beer-Lambert Law, which states that the absorbance of a substance is directly proportional to its concentration and the path length of the light through the substance.

To learn more about Absorbance :

https://brainly.com/question/29565766

#SPJ11

Answer:

If the volume of a gas is decreased by changing the shape of the container, the number of collisions per area between the molecules and the container walls will increase. This corresponds to an increase in the gas pressure, which is the force exerted per area.