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
mel-nik [20]
3 years ago
13

Please help. Why does the temperature change when a powder is dissolved in water?

Chemistry
1 answer:
Schach [20]3 years ago
5 0

Answer:

In order for the powder to dissolve, each powder molecule must separate from the other powder molecules and be surrounded by water molecules. This shift in arrangement either absorbs or releases energy depending on the situation. It is due to the exchange of energy that the temperature of the solution fluctuates.

Explanation:

:)

You might be interested in
In a process called photosynthesis, plants use carbon dioxide and water, along with energy from sunlight, to produce sugar and o
Alex Ar [27]

24 molecules of H2O are needed by the plant to produce 4 molecules of sugar.

<h2>What is photosynthesis?</h2>

The process by which plants convert carbon dioxide, water, and sunlight into oxygen and sugar-based energy is known as photosynthesis.

<h3>The photosynthesis equation is as follows:</h3>

                   6CO2 + 6H2O + Sunlight → C6H12O6 + 6O2

The following three significant activities are involved in photosynthesis:

1. Chlorophyll absorbs light energy.

2. Water molecules are divided into hydrogen and oxygen and light energy is converted to chemical energy.

3. Carbon dioxide is converted to sugars.

         

Therefore, a plant needs four molecules of H2O and four molecules of CO2 to make one molecule of glucose or sugar, hence a plant needs 24 molecules of H2O and 24 molecules of CO2 to make four molecules of sugar.

Learn more about photosynthesis here:

brainly.com/question/19160081

#SPJ4

4 0
2 years ago
One number is three times of the other and their arithmetic mean is 10 find them​
Marysya12 [62]

x = 10, y = 20/6

<h3>Further explanation</h3>

Given

one number is three times of the other

their arithmetic mean is 10

Required

The numbers

Solution

Suppose the numbers you are looking for are x and y, then :

x = 3y (equation 1)

The arithmetic mean : the average of values

(x+3y)/2=10

x+3y = 20 (equation 2)

Substitute equation 1 into equation 2

3y+3y=20

6y=20

y = 20/6

from equation 1 :

x= 3 x 20/6

x = 60/6

x = 10

3 0
3 years ago
Help thanks thanks thanks
melisa1 [442]

Answer:

the answer is (G)

Explanation:

8 0
3 years ago
Read 2 more answers
8. What do you believe: should husbands make decisions for their
Sedaia [141]

Answer:

I personally don't think that they should because women are perfectly capable of making our own decisions.

Explanation:

hope this helps

7 0
3 years ago
numbers represented by the following prefi xes: (a) mega-, (b) kilo-, (c) deci-, (d) centi-, (e) milli-, (f) micro-, (g) nano-,
Dahasolnce [82]

Explanation:

mega=10raised to the power 6

kilo=10 raised to the power 3

centi = 10 raised to the power negative 2

Milli = 10 raised to the power negative 3

nano = 10 raised to the power negative 9

pico= 10 raised to the power negative 12

micro = 10 raised to the power negative 6

5 0
3 years ago
Other questions:
  • What is the predicted change in the boiling point of water when 4.00 g of barium chloride is dissolved in 2.00 kg of water?
    14·1 answer
  • 1. Chemical equilibrium is established when the number of reactants equals the number of products.. . - True. - False. . 2. Acco
    10·2 answers
  • Which of the following correctly describes a property of an atom?
    9·1 answer
  • Two solutions are added together and the new solution becomes hot. This tells you that
    13·1 answer
  • Given 6.23 mol Al find the atoms of Al
    14·1 answer
  • Select all of the following statements that are true. Multiple answers are possible
    9·1 answer
  • Cobalt (I) fluoride<br> how do i write this into a formula?
    5·1 answer
  • Help me Please! I don’t understand it
    5·1 answer
  • Dinitrogen oxide (N2O) gas was generated from the thermal decomposition of ammonium nitrate and collected over water. The wet ga
    10·1 answer
  • assume you are performing the calibration step of experiment 8 and you begin with 80 g of water at 20 oc and 80 g of water at 80
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!