1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jet001 [13]
3 years ago
5

What percentage of the atmosphere is oxygen?

Chemistry
1 answer:
lidiya [134]3 years ago
7 0

Answer:

21%

Explanation:

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

You might be interested in
Please help! BRAINLIEST to right answer
Anastasy [175]

Answer:

Hailey the answer is D.

Explanation:

if liquid to solid is exothermic then then the other way around would be endorhermic

5 0
3 years ago
When solving a problem it is important to identify your given and needed units, but it is also important to understand the relat
Angelina_Jolie [31]

Answer:

The question has some details missing. here are the details ; Given the following ;  

1. 43.2 g of tablet with 20 cm3 of space

2. 5 cm3 of tablets weighs 10.8 g

3. 5 g of balsa wood with density 0.16 g/cm3

4. 150 g of iron. With density 79g/cm 3

5. 32 cm3 sample of gold with density 19.3 g/cm3

6. 18 ml of cooking oil with density 0.92 g/ml

Explanation:

<u>Appropriate for calculating mass</u>

32 cm3 sample of gold with density 19.3 g/cm3

18 ml of cooking oil with density 0.92 g/ml

<u>Appropriate for calculating volume</u>

5 g of balsa wood with density 0.16 g/cm3

150 g of iron. With density 79g/cm 3

<u>Appropriate for calculating density</u>

43.2 g of tablet with 20 cm3 of space

5 cm3 of tablets weighs 10.8 g

3 0
3 years ago
Н
nevsk [136]

Answer:

C4H90H

Explanation:

nskwjxnxnxnslq

6 0
3 years ago
Can someone send me something to get chemistry going ;);)
LenaWriter [7]

Answer:

Check out libretexts chemistry

Explanation:

It's basically an online free textbook for lots of subjects

highly recommended

8 0
3 years ago
Read 2 more answers
How many moles of chlorine are in 100g of chlorine
cricket20 [7]
No. of moles = mass / molar mass
= 100/35.5
5 0
3 years ago
Other questions:
  • Carbon disulfide is an important industrial solvent. It is prepared by the reaction of coke with sulfur dioxide. 5 C (s) + 2 SO2
    7·1 answer
  • There are many different types of maps a map that shows the types of rocks or the age of rocks in an area is called a
    5·1 answer
  • A graduated cylinder contains 15.75 mL of water. A metal that weighs 53.405 g is added.
    10·1 answer
  • How many liters of hydrogen gas are needed to react completely with 50.0 L of chlorine gas at STP ?
    15·1 answer
  • A student thinks that halogens are highly reactive because their electrons are weakly attracted to their nuclei. Which is eviden
    13·2 answers
  • The heat exchange in chemical reactions is due to change in
    15·2 answers
  • What are the short-term and long -term consequences of climate change ? Draw evidence from research to support your analysis . C
    11·2 answers
  • Help me please do this Question :)
    6·1 answer
  • 2N2 + 3H2 → 2NH3
    11·1 answer
  • 100 points! please help me will mark brainliest
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!