Answer: Carbon dioxide made of carbon and oxygen.
This is because compounds are the combination of two atoms from different elements (carbon and oxygen). Hope this helps :)
Explanation:
2H2O2 => 2H2O + O2
Moles of hydrogen peroxide = 0.150dm³ * (0.02mol/dm³) = 0.003mol .
Moles of oxygen = 0.0015mol.
Volume of oxygen = 0.0015mol * (22.4dm³/mol) = 0.0336dm³.
Explanation:
NaOH (aq) + HCl(aq) ----> NaCl(aq) + H2O(l)
Stoichiometric ratio NaOH : HCl = 1:1
moles of HCl needed to be neutralized = 0.18/1000 × 32.5 = 5.85 × 10^-3 mol
So 5.85 × 10^-3 mol of NaOH should be used
If that amount is found in V volume
5.85 × 10^-3 = 0.3/1000 ×V
5.85/0.3 cm^3 = 19.5cm^3
Answer:
ok so for the first question your answer is positive since North is defined as positive. can you show me 2 and 3 so i can answer them in the comments
Explanation:
