Answer:
20 atoms
Explanation:
There are 4 in H2O2 because of 2 hydrogens and 2 oxygens.
Then, multiply by 5 because the coefficient is 5, therefore there are 5 H2O2 molecules.
5 x 4 = 20
Answer:
The answer to your question is V2 = 23.52 l
Explanation:
Data
Volume 1 = V1 = 22.5 l
Pressure 1 = P1 = 734 mmHg
Volume 2 = V2 = ?
Pressure 2 = 702 mmHg
Process
To solve this problem use Boyle's law.
P1V1 = P2V2
-Solve for V2
V2 = P1V1 / P2
-Substitution
V2 = (734 x 22.5) / 702
-Simplification
V2 = 16515 / 702
-Result
V2 = 23.52 l
-Conclusion
If we diminish the pressure, the volume will be higher.
The formula that only shows the ratio of one atom to another is called the empirical formula.
Answer:
The molecular weight of the unknown gas is 16.1 g/mol.
Answer:
the required anions and cations are :
<h3> cation / anion</h3>
- Al 3+ / Cl -
- Al 3+ / PO3-
- Be 2+ / I -
- Sr 2+ / F -
- K + / N 3-
- Na + / S 2-
- Ca 2+ / Cl -
- Na + / Br2-
- Mg 2+ / S 2-
- Al 3+ / O 2-
- Li + / P 3-
- Cs + / N 3-
- K + / I -