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Andrej [43]
3 years ago
11

In a molecule of water, how many electrons are shared between each hydrogen atom and an oxygen atom? A. One B. Two C. Four

Chemistry
2 answers:
lesya692 [45]3 years ago
6 0
The answer is Two (B).
Tems11 [23]3 years ago
6 0

solution:

answer is two

explanation:

In sharing of electrons in the equation water each carbon atom and hydrogen atom share its one electron from its outermost orbit.

since carbon has seven electrons in its outermost orbit and it wants to get one electron to complete its octet.

while hydrogen atoms has one electron to its outermost orbit and it needs one electron to complete its duet.

similarly

second hydrogen atom do as the shame process as it also share one electron to carbon to complete its duet.

after the sharing of electrons both the atoms form molecule water which is stable.


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How do you define an anion?
Elis [28]

An anion has more electrons than protons, it is a negatively charged ion.

8 0
3 years ago
Read 2 more answers
Why are the alkali metals and the halogens very reactive
jeyben [28]

Answer:

Answer in explanation

Explanation:

The reactivity or passiveness of an element depends solely on how close it is to attain a noble gas configuration. This means the closer an element is to attain a noble gas configuration, the greater its reactivity in both direction, positively or negatively.

Alkali metals belong to group 1 of the periodic table while halogens belong to group 17 of the periodic table. This means they are just one electron away from achieving the stability of a noble gas configuration. While alkali metals need to lose one electron to form a univalent positive ion, halogens news to gain one electron to form a univalent negative ion.

They tend to go about this vigorously and as such undergo several chemical reactions because of that single electron they neeed.

4 0
3 years ago
What is the density of a block with a mass of 36 g and a volume of 9 cm3?
Sergio039 [100]

Answer:

The answer is

<h2>4.0 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

<h3>density =  \frac{mass}{volume}</h3>

From the question

mass of block = 36 g

volume = 9 cm³

The density is

density =  \frac{36}{9}

We have the final answer as

4.0 g/cm³

Hope this helps you

3 0
3 years ago
What type of energy is the sum of kinetic and potetinal energy in an object that is used to do work
wolverine [178]

Answer:

mechanical energy

Explanation:

6 0
3 years ago
What is the ph of a solution that results from mixing 25 ml of 0.15 M hcl to 25 ml of 0.52 m nh3?
BartSMP [9]

Answer:

7.00

Explanation:

When the solutions are mixed, the HCl dissociates to form the ions H+ and Cl-. The ion H+ will react with the NH3 to form NH4+. The stoichiometry for this is 1 mol of HCl to 1 mol of H+ to 1 mol of Cl-, and 1 mol of H+ to 1 mol of NH3 to 1 mol of NH4+.

First, let's find the number of moles of each one of them, multiplying the concentration by the volume:

nH+ = 0.15 M * 25 mL = 3.75 mmol

nNH3 = 0.52 M * 25 mL = 13 mmol

So, all the H+ is consumed, and the neutralization is completed, thus pH will be the pH of the solvent (water), pH = 7.00.

5 0
3 years ago
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