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kow [346]
2 years ago
15

What was the primary cause of the increase in oxygen content between 400 and 300 million years ago

Chemistry
1 answer:
Gelneren [198K]2 years ago
4 0

Answer:

What was the primary cause of the increase in oxygen content between 400 and 300 million years ago

Explanation:

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IrinaK [193]

If it loses an electron, it will become an ion.

8 0
2 years ago
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According to the law of conservation of mass, what is the same on both sides of a balanced chemical equation?
Firlakuza [10]

According to the law of conservation of mass, what is the same on both sides of a balanced chemical equation?

A. the volume of the substances

B. the subscripts

C. the total mass of atoms

D. the coefficients

Answer:

A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow.

Explanation:

Every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. ... Use coefficients of products and reactants to balance the number of atoms of an element on both sides of a chemical equation.

Consider the balanced equation for the combustion of methane.

CH

4

+

2O

2

→

CO

2

+

2H

2

O


All balanced chemical equations must have the same number of each type of atom on both sides of the arrow.


In this equation, we have 1

C

atom, 4

H

atoms, and 4

O

atoms on each side of the arrow.


The number of atoms does not change, so the total mass of all the atoms is the same before and after the reaction. Mass is conserved.


Here is a video that discusses the importance of balancing a chemical equation.

8 0
2 years ago
¿ ppr que no podemos automedicarnos ,cuando pensamos q tenemos el virus del CIVD-19?
GREYUIT [131]

Answer:

Porque como tu no eres profesional en medicina, no sabes nada sobre las dosis de medicamentos ni de los efectos que pueden tener en tu cuerpo si se administran incorrectamente.

Explanation:

Es logico que solo vayas al medico para que te den la cura allí.

3 0
3 years ago
What happens to the number of waves when you decrease the wavelength?
Keith_Richards [23]

C

Decreasing the wavelength increases the frequency of a wave and vice versa, as long as the energy of the wave remains constant.

Explanation:

The energy of a wave is given by the formula;

E= hf

Whereby;

E = energy

h = Plank’s constant

f = frequency

Remember that f can be also represented as;

¹/ λ

Whereby;

λ = wavelength

Wavelength and frequency are therefore inversely proportional.

Decreasing the wavelength increases the frequency of a wave and vice versa, as long as the energy of the wave remains constant.

Learn More:

For more on frequency and wavelength of waves check out;

brainly.com/question/13451801

brainly.com/question/9501542

brainly.com/question/14068647

brainly.com/question/12924624

brainly.com/question/10955773

#LearnWithBrainly

6 0
3 years ago
Explain the reaction of metals with water.<br><br>​
telo118 [61]

Answer:

it rusts

Explanation:

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3 years ago
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