Answer:
<h2>The answer is 34 cm³</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula
From the question
mass of aluminum = 91.8 g
density = 2.7 g/cm³
It's volume is
We have the final answer as
<h3>34 cm³</h3>
Hope this helps you
Answer:
Explanation:
0 degrees kelvin is mighty cold. It should be 0 degrees Celsius.
The answer is false.
1. start with balanced equation.
2 H2(g) + O2(g<span>) </span><span> 2 H</span>2O(g<span>)
</span>
2. Use stoichiometry
(3.4moles of H)(2moles of H2O/2moles of H)
The moles of H will cancel, leaving you with moles of H2O.
The answer is 3.4 moles of H2O
In order to find the amount of atoms you have to find the moles then multiply by Avogadro's Constant (L)
mol =
=
= 3.73 mol
Number of atoms of Cu = mol × L
= 3.73 mol × (6.02 × 10²³)
= 2.245 × 10²⁴ atoms of copper
