Answer:
i think its the first one not 100% on it tho but i know for a fact its NOT c
Explanation:
Answer: to reach mineral ores on the surface of earth
Explanation:
A + B = Products
This is the correct mechanism.
Answer:
1. a = 2, b = 1 and c = 2
2. a = 1, b = 3, c = 2 and d = 2
Explanation:
According to law of conservation of mass, the mass can neither be created nor destroyed.
Hence, for a chemical equation the left hand side should be equal to the right hand side.
Therefore, the two balanced equations are;
2 CO + O₂ → 2 CO₂
C₂H₄ + 3 O₂ → 2 CO₂ + 2 H₂O
It is in Group 5A => <u>5</u> valence electrons
