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
ikadub [295]
3 years ago
12

Please help- thank you-

Chemistry
2 answers:
Alja [10]3 years ago
7 0
1. ?
2. Pollination
3. Population
4. Egg
5. Tadpole
6. Froglet
7. Adult
8. Sun
9. Food web
10. Plants
11. Producers
12. Year
13. Increase
14. 80.5 ?
15. 75.1 ?
16. Cause it to develop
17. C
18.
19.
20.
21.
22.
23. E
24. Sweet potatoes
Flauer [41]3 years ago
4 0
Dang that’s crazy.. Goodluck ..
You might be interested in
4) Select all the terms according to the subatomic particle of an electron.
Paladinen [302]

Answer:I think it’s B

Explanation:

5 0
3 years ago
How many grams of NaOH are needed to neutralize 50 grams of H2SO4
slavikrds [6]

Answer:

H2SO4 + 2NaOH ==> Na2SO4 + 2H2O

Explanation:

8 0
3 years ago
Read 2 more answers
Sevin, the commercial name for an insecticide used to protect crops such as cotton, vegetables, and fruit, is made from carbamic
xeze [42]

Answer:

Explanation:

Ratio of mass of C , N , H and O

= .8007 :0.9333:0.2016:2.133

Ratio of moles of C , N , H and O

= .8007/12 : .9333 / 14 : 0.2016 / 1 : 2.133/16

= .0667 : .0667: .2016 : .1333

= .0667 / .0667 : .0667 / .0667 : .2016 /.0667 : .1333 / .0667

= 1 : 1 : 3: 2

Hence empirical formula = CNH₃O₂

7 .

Weight of titanium Ti = 1.916 g

Weight of oxygen = 3.196 - 1.916 = 1.28 g

Ratio of weight of Ti and O

= 1.916 : 1.28

Ratio of moles  of Ti and O

1.916/48 : 1.28/16  [ Molecular  weight of Titanium is 48 ]

= .04 : .08

= .04/.04 : .08/.04

= 1 :2 .

Empirical formula

TiO₂

5 0
3 years ago
What percentage of oxygen is attributed fossil fuel combustion
Oxana [17]

Answer:

C. 4%

Explanation:

The answer is 4%

6 0
2 years ago
Substance P is carbon.
stepan [7]

Explanation:

substance Q could be <em><u>oxygen (O2)</u></em>

substance R could be <em><u>carbon</u></em><em><u> </u></em><em><u>d</u></em><em><u>i</u></em><em><u>o</u></em><em><u>x</u></em><em><u>i</u></em><em><u>d</u></em><em><u>e</u></em><em><u> </u></em><em><u>(</u></em><em><u>C</u></em><em><u>O</u></em><em><u>2</u></em><em><u>)</u></em>

4 0
3 years ago
Other questions:
  • Differences between iron and steel
    12·1 answer
  • What is the number of molecules in 500cm? of oxygen under room conditions?
    13·1 answer
  • Calculate the amount of energy in Joules required to change 10 g of solid mercury at its melting point to mercury vapor at the b
    14·1 answer
  • Energy conversions _____. can lose energy as sound can be 100 percent efficient if controlled properly are calculated by multipl
    6·2 answers
  • What are molecules and what are they made of?
    13·1 answer
  • Which element is the basis for all living things and can combine with other elements in many ways? a.phosphorus
    10·2 answers
  • If anyone can answer all these questions you can get 35 points
    10·1 answer
  • Write the electronic configuration of the first 20 element​
    9·1 answer
  • PLEASE help and quickly as possible it is one question that i need answered so that i can answer all my other questions PLEEEEAS
    7·1 answer
  • A 20.0-ml sample of glucose Iv solution has a mass of 20.6g.what is the density of the glucose​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!