Answer:
C
Explanation:
There are 2 hydrogen atomic the reactants for every 3 hydrogen.
Answer:
A - 8
B - 8
C - O
D - 26
E - 30
F - Fe
Explanation:
Use these things:
1. A = Z + N,
where A - mass number,
Z - atomic number,
N - number of neutrons
2. atomic number = number of protons
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Chemical reactions can be detected by changes in : Temperature and color
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If the mass of both the reactants is 10kg then the mass of the products also equals 10kg.
It is due to the law of conservation of mass.
Mass can neither be created nor be destroyed.
Answer:
6
Explanation:
2A is a molecule Argon bond. so, it's 1 + 2+ 3
