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Mice21 [21]
3 years ago
12

How many pairs of electrons are shared in a single bond? A. 1 B. 2 C. 3 D. 4

Chemistry
2 answers:
kirill [66]3 years ago
7 0

Answer:

A

Explanation:

elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

1

Explanation:

A.) A single bond shares 1 pair of electrons between 2 atoms.

B.) A double bond shares 2 pairs of electrons between 2 atoms.

C.) A triple bond shares 3 pairs of electrons between 2 atoms.

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Dahasolnce [82]
<span>What caused the bubbles to form when you added the catalyses to the hydrogen peroxide and water mixture at 40 °C? A. Catalyses activity heated the solution to its boiling point. B. Hydrogen gas formed during the formation of hydrogen peroxide. C. Oxygen gas formed during the decomposition of hydrogen peroxide.

This would be the water, mixture.</span>
7 0
3 years ago
Read 2 more answers
Name the ions in water acidified with dilute sulphuric acid
Vladimir [108]

Answer:

H + ions are attracted to the cathode , gain electrons and form hydrogen gas. OH - ions are attracted to the anode , lose electrons and form oxygen gas.

6 0
4 years ago
Which of the following bonds is the most polar?
lbvjy [14]
Maybe b might be the answer
6 0
3 years ago
The empirical formula of a compound is CH2O and its molecular weight is 90.09 g/mol. Determine the molecular formula.
Pachacha [2.7K]

Answer : The molecular formula of the compound will be, C_{3}H_{6}O_3

Explanation :

Empirical formula : It is the simplest form of the chemical formula which depicts the whole number of atoms of each element present in the compound.  

Molecular formula : it is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is :

n=\frac{\text{molecular mass}}{\text{empirical mass}}

As we are given that the empirical formula of a compound is CH_2O and the molar mass of compound is, 90.09 gram/mol.

The empirical mass of CH_2O = 1(12) + 2(1) + 1(16) = 30 g/eq

n=\frac{\text{molecular mass}}{\text{empirical mass}}

n=\frac{90.09}{30}=3

Molecular formula = (CH_2O)_n=(CH_2O)_3=C_{3}H_{6}O_3

Thus, the molecular formula of the compound will be, C_{3}H_{6}O_3

7 0
4 years ago
A recipe for candy requires that the liquid ingredients be stirred constantly until the liquid reaches a temperature of 140°C. W
inn [45]

Answer:

Wood

Explanation:

Wood because the heat would not be able to travel to the hand to burn it unlike  the metal

8 0
2 years ago
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