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3241004551 [841]
3 years ago
5

PLEASE HELP WILL MARK BRAINLIESTTTT!!!!

Chemistry
2 answers:
Brilliant_brown [7]3 years ago
7 0

Answer:

Iconic bond or covalent bond

Explanation:

Vikentia [17]3 years ago
4 0

Answer:

Valence electrons will either donate or receive electrons to form molecules.

You might be interested in
How many oxygen molecules in 2.3x10-⁸g of molecular oxygen ​
cluponka [151]

Answer:

6.321 × 10^22

Explanation:

Mass of Oxygen =

3.36

g

Molar mass of oxygen (

O

2

) = 16 x 2 =

32

g

m

o

l

−

Total molecules in oxygen = Mass in grams/Molar mass x

N

A

=

3.36

32

x

6.02

x

10

23

=

6.321

x

10

22

Note:

N

A

(Avagadro's number) =

6.02

x

10

23

Hope it helps...

3 0
3 years ago
5. The number of atoms in 9.2 g of Na will be: A. 6.2 x 1023 atoms B. 2.408 x 1023 atoms C. 9.2 x1023 atoms D. 23 atoms E. 9.2 a
cluponka [151]

Answer:

The answer is "Option B"

Explanation:

Formula:

Na atoms= Na atoms moles \times  NA

               = \frac{mass}{Na \ Molar\ mass} \times 6.022 \times 10^{23}\\\\= \frac{9.2}{23} \times 6.022 \times 10^{23}\\\\=0.2875 \times 6.022 \times 10^{23}\\\\=2.4 \times  10^{23}\ atoms \\\\

                                     

4 0
3 years ago
First to answer right gets Brainiest!!!!!!
Elanso [62]

Answer:

1) Tetanus is a potentially fatal bacterial infection that affects the nerves

2)Tetanus causes painful muscle contractions, particularly in the jaw and neck. It can interfere with the ability to breathe, eventually causing death.

3)  infants and the elderly are most likely but every one can get it.

4) The tetanus vaccine is made by taking the tetanus toxin and inactivating it with a chemical. The inactivated toxin is called a "toxoid." Once injected, the toxoid elicits an immune response against the toxin

5) Tetanus antiserum was developed in 1890, with its protective effects lasting a few weeks. The tetanus toxoid vaccine was developed in 1924, and came into common use for soldiers in World War II.

6)CDC recommends tetanus vaccination for all babies and children, preteens and teens, and adults

7) After the initial tetanus series, booster shots are recommended every 10 years.

8)help your immune system protect against these infections

9)Reported tetanus cases have declined more than 95%, and deaths from tetanus have declined more than 99% in the United States since 1947.

10) although the tetanus vaccine can be a very rare cause of a short-lived allergic reaction called "anaphylaxis," the tetanus vaccine does not cause death so the benefits outweigh.

11)They are most commonly found in animal manure and contaminated soil, but may exist virtually anywhere.

7 0
3 years ago
Read 2 more answers
1. What force binds galaxies together?​
Sindrei [870]

Answer:

Gravity.

Explanation:

Black holes in the center of most galaxies hold the galaxy together by gravity. Everything is sucked towards the center and kept together.

8 0
3 years ago
Read 2 more answers
1) Write the word and symbol equation to show what happens when water is added to Calcium Oxide.
mezya [45]
2. caco3 -> cao + co2
    limestone -> calcium oxide + carbon dioxide
5 0
3 years ago
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