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KatRina [158]
4 years ago
10

Next to each formula, write the number of atoms of each element found in one unit of the compound

Chemistry
1 answer:
satela [25.4K]4 years ago
7 0
To answer this question I would have to know the elements in the compound
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__H2 + __O2 --> __H2O
nekit [7.7K]

Answer:

42.3moles

Explanation:

The chemical equation given in this question is as follows:

H2 + O2 → H2O

However, this equation is unbalanced, the balanced chemical equation is as follows:

2H2 + O2 → 2H2O

This equation shows that;

2 moles of hydrogen gas (H2) will produce 2 moles of water (H2O)

Hence, If 42.3 moles of water (H2O) are produced, 42.3 × 2/2

= 42.3moles of hydrogen was reacted.

6 0
3 years ago
Describe a method to calculate the average atomic mass of using only the atomic masses of
AnnZ [28]

Answer:

Average amu is 6.52556

Explanation:

Average the numbers

Add the two masses together.

6.01512+ 7.01600= 13.03112

Then divide by 2, we divide by 2 because that is how many #'s we are given.

13.03112/ 2= 6.52556

6 0
3 years ago
Why is helium in group 18 on the periodic table though it only has 2 valence electrons?
damaskus [11]
<span> strictly speaking, a molecule has at least two atoms. ... Atoms with full valence electron shells are stable. Full Text[ edit ] The noble gases are a group of chemical elements that make up Group 18 on the periodic table.</span>
8 0
3 years ago
A student mixed 100 mL of water at 15°C with 100 mL of water at 65°C. What is the final temperature of the water?​
horrorfan [7]

Answer:

<em><u>5</u></em><em><u>0</u></em><em><u>°</u></em><em><u>C</u></em>

Explanation:

<em><u>please click the heart and rate excellent and brainleist to </u></em><em><u>❤</u></em><em><u>☺️</u></em><em><u>☻</u></em><em><u>♨️</u></em><em><u>♨️</u></em><em><u>☻</u></em><em><u>☺️</u></em><em><u>❤</u></em>

7 0
3 years ago
According to the kinetic theory, all matter is made of moving particles, which measurement of matter is directly proportional to
34kurt
Answer: Kelvin temperature of a substance
8 0
3 years ago
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