2) Temperature is a measure of the total thermal energy of the particles.
3) Temperature is a measure of the average potential energy of the particles.
4) Temperature is a measure of the average kinetic energy of the particles.
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Answer: the reactant left in excess is H₂, and the amount of excess H₂ is 4.5 moles - 3 moles = 1.5 moles.
Explanation: Moles of N₂ = mass of N₂ / molar mass of N₂
Moles of N₂ = 56 g / 28 g/mol = 2 moles
Moles of H₂ = mass of H₂ / molar mass of H₂
Moles of H₂ = 9 g / 2 g/mol = 4.5 moles
The question is as follows: How many oxygen molecules are produced by the decomposition of 28.5 g of H2O2 (molecular mass = 34.0g / mol) according to the equation
2H2O2 (l) → 2H2O (l) + O2 (g)
Answer: There are molecules are produced by the decomposition of 28.5 g of
according to the equation
.
Explanation:
Given: Mass of = 28.5 g
As moles is the mass of a substance divided by its molar mass. Hence, moles of is calculated as follow.
According to the given equation, 2 moles of gives 1 mole of
. So, moles of
produced by 0.838 moles of
will be calculated as follows.
This means that moles of produced is 0.419 mol.
As per the mole concept, 1 mole of every substance has molecules.
So, molecules of present in 0.419 mole are as follows.
Thus, we can conclude that there are molecules are produced by the decomposition of 28.5 g of
according to the equation
.
B. positively charged.
C. negatively charged.
D. not part of an electrolyte.
Answer:
The correct answer is option B. positively charged.
Explanation:
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Let's solve this!
When an atom yields its electrons, it yields part of its negative charge. Therefore, it immediately transforms into a positively charged ion.
This positively charged ion is called cation.
We conclude that the correct answer is option B. positively charged.
Answer:
pH
7.0 = neutral.
(7–14) = basic
(0–6) = acidic
Explanation: