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timurjin [86]
3 years ago
15

What are 7 elements from the periodic table that are named after objects in outer space?

Chemistry
1 answer:
Alik [6]3 years ago
8 0
Elements named after celestial bodies are the following. 1.Element 34 (Selenium) is named after the moon. Selene is Greek for moon 2. Element 2 (Helium) is named after the sun. Helios is Greek for sun. 3. Element 52 (Tellurium) is named after the earth. Tellus is the Latin word for earth. 4. Element 80 (Mercury) is named after the planet Mercury. The name Mercury is also a name of a Roman god. 5. Element 92 (Uranium) is named after the planet Uranus. 6. Element 93 (Neptunium) is named after the planet Neptune. 7. Element 94 (Plutonium) is named after the planet Pluto.
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How much more acidic is 1 to 9
lara31 [8.8K]

Answer:

Number one is the most acidic, the one in the middle is neutral, and number nine is alkaline.

7 0
3 years ago
According to the kinetic-molecular theory, what is one way the three states of matter are all similar?
Delicious77 [7]

The kinetic molecular theory of matter states that:

1. Matter is made up of particles that are constantly moving.

2. A change in phase may occur when the energy of the particles is changed.

3. All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state.

6 0
2 years ago
Write the rate expression for the following reaction. H2+1/2 <br>O2 arrow H2O​
julsineya [31]

Answer:

r=-k[H_2][O_2]^{1/2}

Explanation:

Hello!

In this case, according to the chemical reaction:

H2 + 1/2  O2 --> H2O​

Since both hydrogen and oxygen are the reactants and the rate laws are written in terms of the concentration of reactants and the rate constant, we obtain:

r=-k[H_2][O_2]^{1/2}

Whereas the negative sign represents the consumption of those reactants and the power 1/2 the stoichiometric coefficient of oxygen in the reaction.

Best regards!

8 0
3 years ago
Arteries are elastic because of the interior layer of______ tissue.
leonid [27]
Muscle is the newer hope it helps
8 0
3 years ago
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Which statement best describes a solution?
lara31 [8.8K]

A mixture having a uniform composition where the components can't be seen separately and all components are in the same state best describes a solution.

 

<span>In chemistry, a </span>solution<span> is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.</span>

 

The correct answer between all the choices given is the third choice or letter C. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

6 0
4 years ago
Read 2 more answers
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