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
Pavel [41]
3 years ago
10

Please help me out with this question if you help me I will give you the brain thing and extra points. 4/9 image below.

Chemistry
2 answers:
Alex_Xolod [135]3 years ago
8 0

Answer:

B.

Explanation:

i think. hope you are doing well

gayaneshka [121]3 years ago
4 0

Answer:

It’s C

Explanation:

You might be interested in
Use the reaction N2(g) + 3H2(g) 2NH3(g) to answer the following questions
Veronika [31]

Answer:

K

C

=

[N

2

][H

2

]

3

[NH

3

]

2

N

2

+3H

2

⇌2NH

3

=

(1.5×10

−2

)(3×10

−2

)

3

(1.2×10

−2

)

2

=

1.5×10

−2

×27×10

−6

1.44×10

−4

=

40.5×10

−4

1.44

=0.035×10

4

5 0
3 years ago
How is heat produced in a chemical change​
Snezhnost [94]

Answer:Hola UwU

Most chemical reactions involve the breaking and formation of chemical bonds. It takes energy to break a chemical bond but energy is released when chemical bonds are formed. If more energy is released than consumed, then the chemical reaction evolves heat and is said to be exothermic.

Explanation:Adios~ UnU haha

7 0
3 years ago
Pls help I’ll mark brainliest pls pls pls
katovenus [111]
The tea was no longer hot or (brewed) so the 5th didn’t dissolve like the others because the tea was hot or warm enough anymore it cooled down. So the sugar won’t dissolve no more.
7 0
2 years ago
Read 2 more answers
If a sample contains 21.2g N how many moles of N does it contain
tigry1 [53]

Hey there!

The molar mass of nitrogen is 14.007.

Convert grams to moles:

21.2 ÷ 14.007 = 1.51

The sample containing 21.2g of nitrogen contains 1.51 moles of nitrogen.

Hope this helps!

8 0
3 years ago
Part 1: Describe the mass and surface temperature of the supergiant stars.
Julli [10]
Part 1 :- Super gaint star have mass from 10 to 70 solar masses and brightness from 30,000 upto hundreds of thousand times the solar luminosity 
blue super giant surface temperature is 20,000 to 50,000 degree Celsius example :0 Rigel  its mass is around 20 times the sun mass it give light which 60,000 sun together give . 
part 2 :-   HR diagram : hertzsprung -Russel diagram ( attached below)

3 0
3 years ago
Other questions:
  • Chose the statements that are TRUE from the list below Group of answer choices Ions exist alone in nature Lactate is created by
    11·1 answer
  • Liquid octane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 8.00 g of octane is m
    13·1 answer
  • PLEASE HELP 25 POINTS!!!!
    8·1 answer
  • What mass (in g) of NH3 must be dissolved in 475 g of methanol to make a 0.250 m solution?
    7·1 answer
  • Information that specifies an organism's traits is encoded in genes, or pieces of DNA that are located in the organism's chromos
    11·2 answers
  • Which of the following fractions can be used in the conversion of 1500 dm3 to cm3? (2 points) fraction cubed: ten to the negativ
    10·1 answer
  • QUESTION:
    8·1 answer
  • Sugar is stirred into water to forma a solution. In this case, what names do we give to the sugar and water?
    10·1 answer
  • what will most likely be observed when sulfur powder and iron powder are mixed together and then add water
    8·2 answers
  • Which of the following is soluble in water? <br>1-glycerin <br>2-sand<br>3-iron filing<br>4-oil​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!