Answer:
You need the mass of Mg and Ca in the sample and their molar masses
Explanation:
Its the only answer that made sense because using those 4, can give you their ration
<u>Formula to use:</u>
w = weight
m = mass
g = gravitational field strength.
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<u>Given</u>:
w = weight
m = 294.56
g = ?
<u>Solution:</u>
<u>Answer:</u>
Most reasonable answer:
Observations and experimentation
Answer:
2 molecules of water
Explanation:
In chemical reactions, molecules and compounds chemically combine to give products. This involves atoms combining by re-establishing bonding relationships.
4 hydrogen atoms is equivalent to 2 molecules of Hydrogen gas = H₂
2 oxygen atoms is the same as 1 oxygen molecule = O₂
This 2 molecules of hydrogen gas and 1 molecule of O₂ gas will combine to form 2 molecules of water chemically;
2H₂ + O₂ → 2H₂O