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
mestny [16]
3 years ago
11

In this equation, 2Mg + 02 → 2MgO, what's the coefficient of the oxygen molecule?

Chemistry
2 answers:
lora16 [44]3 years ago
7 0
A. 2
trust me i used to so this in middle school
Svetach [21]3 years ago
6 0

the coefficient would be 2 bc its the number that multiplies the variable.

~serenity bella

You might be interested in
Quick question plz . .....Which one of the following is acidic oxide?
dedylja [7]

Answer:

B

Explanation:

its an acidic oxide, it disolves in water to form carbonic acid which is an acid

8 0
3 years ago
236U &gt;33 Np+ ____? <br> 92<br> help plzzzzz
anygoal [31]

Answer:

1

Explanation:

if 33 the answer would be 92 but u think then 92 32 1

5 0
3 years ago
how much heat in joules would be required to raise the tempurture of 450g of aluminum from 19.5c to 31.2c
Mama L [17]
Answer is 19.5c I think
4 0
3 years ago
Convert 78.9 kJ into calories Can you also explain how pls? ty
Naddik [55]

Explanation:

1 kJ = 238.85 cal and

1 cal = 0.004187 kJ

so it will be 78.9×238.85 = <em><u>1</u></em><em><u>8</u></em><em><u>,</u></em><em><u>8</u></em><em><u>4</u></em><em><u>4</u></em><em> </em>calories

78.9 Kilojoules (kJ) = 18,844 Calories (IT) (cal)

3 0
3 years ago
What is the observation of heating copper carbonate???.?
damaskus [11]

Answer:

1)This type of reaction is called thermal decomposition . Copper carbonate is green and copper oxide is black. You can see a colour change from green to black during the reaction. The carbon dioxide produced can be detected using limewater, which turns milky. 2) The extremely low pressure of the partial vacuum inside the can made it possible for the pressure of the air outside the can to crush it. A can is crushed when the pressure outside is greater than the pressure inside, and the pressure difference is greater than the can is able to withstand.

Explanation:

hope this helps you :)

7 0
3 years ago
Other questions:
  • Describe what you would do if a glass beaker drops and breaks. List the appropriate steps in order.
    13·2 answers
  • -
    15·1 answer
  • Using your senses to gather information is called
    9·1 answer
  • In the operation of the Heat Transfer Service Unit, one of the variables you can control is the rate of cooling water flowing ag
    14·2 answers
  • If the above two waveforms were sound waves, we would hear the ___________ wave louder. If the above two waveforms were light wa
    15·2 answers
  • What is a controlled experiment?
    5·2 answers
  • Convert 4.0 kilometers 2 meters
    12·1 answer
  • A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is c
    7·1 answer
  • USE YOUR OWN WORDS. Each question must have a three sentence long answer!
    9·2 answers
  • Answer the following questions for H2CrO4:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!