Answer:
b. a new gas is observed in the form of bubbles
Explanation:
The only statement that was evidence of a chemical reaction is a new gas is observed in the form of bubbles Any time a new substance is created, a chemical reaction has taken place.
Answer:
3.08 g of Oxygen .
Explanation:
2Mg + O₂ = 2MgO
2 mole 1 mole
molecular weight of Mg = 24
2 mol of Mg = 48 g
48 g of Mg reacts with 32 g of oxygen
4.62 g of Mg will reacts with 3.08 g of Oxygen .
Explanation:
2mol means 2H2O in 2 moles of water 4 H and 2Oxygen
Water and copper hope this helps:)
The answer to your question is climate.
