HCl (aq) + NaOH (aq)→H2O (l) + NaCl (aq)
Acid reacts with base to give H2O and salt
Answer:
Coal
Explanation:
Once it's all been mined, there's no more. It's not like we grow it.
Answer:
2.5 L
Explanation:
The stoichiometric ratio of N2 to N2O4 is 1:1
Answer:
b. 6.02 x 1023 molecules
Explanation:
The formula mass of ammonia is 14 + 1 × 3 = 17.
The number of moles in 27.6g ammonia is 27.6 ÷ 17 = 1.62 mol.
A mole is 6.02 × 10²³, so the number of hydrogen atoms in a 1.62 moles of ammonia is 1.62 × 6.02 × 10²³ × 3 = 2.93 × 10² atoms.
