Answer:
The answer to your question is 1.2 moles of copper
Explanation:
Data
mass of copper = 75 g
moles = ?
Process
1.- Look in the periodic table for the atomic mass of copper.
Atomic mass = 63.55 g/mol
2.- Use proportions to determine the moles of copper in 75 g
63.55 g of copper -------------------- 1 mol
75 g of copper -------------------- x
Use cross multiplication
x = (75 x 1) / 63.55
x = 75 / 63.55
x = 1.18 moles ≈ 1.2 moles of copper
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Answer:
Sodium hydroxide and water will react at room temperature. What does this indicate about its activation energy? The activation energy is at exactly 600 kJ. C. The activation energy is very low.
Explanation:
It can be explained in<span> simple </span>terms<span>: Oxidation is the loss of electrons or an increase </span>in<span> oxidation state by a molecule, atom, or ion. </span>Reduction<span> is the gain of electrons or a decrease </span>in<span> oxidation state by a molecule, atom, or ion.</span>
Answer: false
Explanation: because I took the test
