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crimeas [40]
3 years ago
13

Is H20 an atom or a molecule and is it a pure element or a

Chemistry
2 answers:
Ymorist [56]3 years ago
8 0
Answer: A

H2O is a compound and molecule since it consists of two atoms combined together
vfiekz [6]3 years ago
3 0
Atom pure element because of fort nite
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Which best describes the source of radiation heat
yanalaym [24]

The sun sending out electromagnetic waves is best describes the source of radiation heat.

Radiation heat is the form of electromagnetic waves.

Radiation heat, commonly referred to as thermal radiation, is the electromagnetic radiation that defines how photons exchange heat. The technique of heat transfer known as radiant heat does not require a medium to be propagated in.

Two molecules colliding with each other produce kinetic energy, moving objects have kinetic energy. Radiation heat is thermal energy. Sun directly sends thermal radiation through electromagnetic waves.

Hence , The sun sends out electromagnetic waves directly is best describes the source of radiation heat.

For more information about radiation heat refer given link brainly.com/question/14341157.

#SPJ1.

7 0
2 years ago
Based on their electronegativities, you would expect ____ elements to pull on electrons more strongly than ______ elements.
sveta [45]

Answer:

I interpret the answers as being nonmetallic and metallic.

Explanation:

Nonmetals are in groups 14 - 18. Electronegativity is referred to as the want to attract electrons to an atom. Noble gases (group 18) have eight valence electrons in their outer subshells and are therefore atomically stable. Elements with only 7 valence electrons are very electronegative because they desire to obtain an electron to reach stability more than a group 2 element would (they are more likely to drop electrons by giving away in order to reach atomic stability of a group 18 element). This coincides with electron configuration, which is a very lengthy topic to cover. You can conduct more research if you would need it.

5 0
3 years ago
Select each process that produces an increase in the entropy of the system: check all that apply. check all that apply. cao(s) +
skelet666 [1.2K]
2SO2(g)+O2(g)→2 SO3(g), here reaction entropy decreases as the number of gas moles decreases from reactions to products.
HCL(g)+NH3(g)→NH4CL(s), entropy decreases as molecules of gas are converted into solid.
CO2(s)→CO2(g), entropy increases as gas is formed from a solid.
Cao(s)+CO2(g)→Caco3(s), entropy increases as gas is converted into a solid.
5 0
3 years ago
Which the following statement ia correct for the equation shown here​
Shkiper50 [21]
B.

As you can see both NO and NH3 have 4 moles therefore it is 4:4 between the molecules or in other words a 1:1 ratio in simplest forms
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3 years ago
Given 2.0 moles of nitrogen and plenty of hydrogen, how many moles of NH3 are formed?
kolezko [41]
3.0 moles


Rjdjfjfjfjfhfj
3 0
3 years ago
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