Magnesium hydroxide Mg(OH)₂ is a weak base.
Explanation:
Sulfuric acid H₂SO₄ and hydrochloric acid HCl are, both of them, very strong acids.
Sodium hydroxide NaOH and potassium hydroxide KOH are hydroxides of metals from the first group in the periodic table so thy are strong bases.
As you go to the second group in the periodic table, the hydroxides will not dissociate as much as the hydroxides from the first group in the periodic table , so they will be weak bases. This is the case of magnesium hydroxide Mg(OH)₂.
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acid and bases
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<u>Explanation:</u>
Empirical formula is defined as the formula in which atoms in a compound are present in simplest whole number ratios.
For the given options:
- <u>Option a:</u> Acetic acid
Acetic acid having molecular formula
. To write the empirical formula, we divide each subscript by 2.

Hence, the empirical formula for acetic acid is 
- <u>Option b:</u> Citric acid
Citric acid having molecular formula
. To write the empirical formula, we divide each subscript by 1.

Hence, the empirical formula for citric acid is 
- <u>Option c:</u> Hydrazine
Hydrazine having molecular formula
. To write the empirical formula, we divide each subscript by 2.

Hence, the empirical formula for hydrazine is 
- <u>Option d:</u> Nicotine
Nicotine having molecular formula
. To write the empirical formula, we divide each subscript by 2.

Hence, the empirical formula for nicotine is 
Butane having molecular formula
. To write the empirical formula, we divide each subscript by 2.

Hence, the empirical formula for butane is 
Answer:
Shift it toward the reactants.
Explanation:
Weight is properly defined as how much gravity acts upon an object.
I hope this helps!
Answer: A the kinetic energy is transformed into heat
Explanation: