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
Tpy6a [65]
3 years ago
8

What is the valence of oxygen

Chemistry
1 answer:
leva [86]3 years ago
7 0

Answer:

-2

Explanation:

eACH ELEMENT HAS AN SPECIFIC VALENCE, FOR EXAMPLE, CARBON (+2),+4 IN THE CASE OF OXYGEN IS -2

You might be interested in
What are differences and similarities between pure substances and mixtures
Snezhnost [94]

Answer:

HELLO THERE!

I HOPE MY ANSWER WILL HELP YOU :)

Explanation:

There is this picture that helped me. I hope it helps you too.

5 0
3 years ago
Help please!! I'll name you brainliest!!
balu736 [363]

Answer:

MgO

Explanation:

4 0
3 years ago
Explain how human activity can affect the carbon cycle.
Eva8 [605]

Answers:

              Human activities badly affect carbon cycle. Activities such as burning fossil fuel and deforestation have begun to effect on carbon cycle and the rise of carbon dioxide in atmosphere.

Explanation:

                   The carbon cycle can be affect when carbon dioxide is either released into atmosphere or remove from atmosphere. When fossil are burnt , carbon is release to the atmosphere at faster rate then it is removed. Natural gas, oil, coal, and other industrial products all are affecting carbon cycle in atmosphere.

                     Deforestation means permanent removal of trees from forest which cause increase in level of carbon dioxide because no trees longer to absorb carbon dioxide from atmosphere. Which result affect on carbon cycle.


4 0
3 years ago
Read 2 more answers
Krypton-79 has a half-life of 35 hours. how many half-lives have passed after 105 hours?
Nookie1986 [14]
The number of half -lives that has passed after 105  hours  for krypton-79 that has  half-life of 35 hours is calculated as below

if 1 half life = 35 hours

what about 105 hours = ? half-lives

= (1 half life  x105  hours) /35 hours = 3 half-lives  has passed after 105 hours
6 0
3 years ago
Metallic character is highest in the
krok68 [10]

Answer:

a

Explanation:

euejejejueeijeejejejejejje

5 0
3 years ago
Other questions:
  • What percentage of gases are in the earth?
    11·1 answer
  • What is the Full Form of PET?
    5·2 answers
  • A government laboratory wants to determine whether water in a certain city has any traces of fluoride and whether the concentrat
    5·1 answer
  • Consider the insoluble compound silver bromide , AgBr . The silver ion also forms a complex with ammonia . Write a balanced net
    7·1 answer
  • Explain distillation and chromatography
    7·1 answer
  • The law of conservation of matter states that matter is neither created nor destroyed in a chemical reaction. Which of the follo
    9·2 answers
  • ASAP HELP PLZZZZ
    11·1 answer
  • (NEED HELP ASAP)
    8·1 answer
  • 250 mL of water is collected during a combustion reaction. The temperature in the
    14·1 answer
  • What is the effect of scary movies on pulse rates<br><br> a. Independent<br> b. Dependent:
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!