Answer:
A. heavy nuclei
Explanation:
They absorb neuyrons in order to hain stability.
C. The thermometer reads 100
Answer:
0.3 moles of H2 will be produced.
Explanation:
Balanced reaction: 2 Al + 6 HCl → 2 AlCl3 + 3 H2
Given Al mass = 5.4 g, we know Mr of Al is 27
Using the formula:
moles = mass / Mr
moles of Al = 5.4 / 27
moles of Al = 0.2 moles
Here we see that "2" molar mass before Al; so in this reaction, "1" molar mass will have [(0.2)/2] = 0.1 moles. He see "3" molar mass before H2, therefore moles of H2 is (3 * 0.1) = 0.3 moles.
<u>Answer:</u> The number of moles of
is 0.05 moles.
<u>Explanation:</u>
To calculate the molarity of solution, we use the equation:

We are given:
Molarity of solution = 0.10 mol/L
Volume of solution = 1 L
Putting values in above equation, we get:

The chemical reaction for the ionization of sodium sulfate follows the equation:

By Stoichiometry of the reaction:
2 moles of sodium ions are produced by 1 mole of sodium sulfate
So, 0.10 moles of sodium ions will be produced by =
of sodium sulfate.
Hence, the number of moles of
is 0.05 moles.
Hello! Your answer will be C. If you need an explanation let me know!