Question

17. Which of the following is a chemical combination
a. 2 H2o- + 4 + O2
b CaoCoCaCO3
c. Np+5H2 + 2NH3
d. Cac Ca + 0​

Answer 1

Answer:

YOUR OPTION 1 IS CORRECT ...

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Answer 2

SOLUTION-;

• The balanced equation for methane is CH4 + 2 O2 → CO2 + 2 H2O ... can occur when entropy drives the reaction (pushes the ball up the hill). ... however we get a larger energy payoff when the carbon-oxygen and hydrogen-oxygen bonds are

• Some crystals of copper sulphate were dissolved in water. ... (b) 3. (c) 2. (d) 1. Ans. (a) 4. 4. Chemically rust is. (a) Hydrated ferrous oxide. 1 ... CaO (s) + H2O ... In this reaction, Na is oxidized because it combines with O2 to form Na2O.