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
nadezda [96]
3 years ago
9

Can some one help me out? I can't chose between A or B

Chemistry
2 answers:
Luba_88 [7]3 years ago
8 0

Answer : If an increase in temperature accompanies a reaction, energy is released. Explanation :In thermodynamics, the reaction is considered as a system and the medium in which the reaction occurs which is usually an aqueous medium is considered as its surrounding. When the heat flows from the system to its surrounding, it increases the temperature of surrounding medium because the heat released by the system is absorbed by its surrounding. This is known as exothermic reaction. An exothermic reaction is always accompanied by energy release. On the other hand, when the heat flows from the surrounding towards system, it decreases the temperature of the surrounding medium. This is known as endothermic reaction. From the above discussion we can say that If an increase in temperature accompanies a reaction, energy is released.

Good luck ;)

kolezko [41]3 years ago
8 0

A. Energy was absorbed.

When particles are heated, they to start moving around more, which means they have more kinetic energy. (If it's an object's temperature that's increasing)

You might be interested in
The molar mass of c3h8o2 (four significant figures) is ________.
Luda [366]
So carbon is 12(3), hydrogen is 1.01 (8), and oxygen is 16(2). Add it all together and you get 76.08 amu. That's molecular. The molar would be in grams (76.08 g). Hope that answered the question. 
6 0
3 years ago
How will you increase the solubility of a gases in a liquid solvent?
Stells [14]

Answer:

increase the temperature

Explanation:

The solubility of a gas in a liquid will increase if: Lower the temperature of the solution , and therefore, lower the kinetic energy of the gaseous particles so they can escape the liquid phase less often.

5 0
4 years ago
Read 2 more answers
What must be part of a quantitative observation?
KATRIN_1 [288]

A quantitative observation must be a measurement of some sort. (Something including numbers). Qualitative, on the other hand, is when you are using words to describe what has happened.

Explanation:

Quantitative observations are performed with devices such as rulers, balances, measured cylinders, beakers, and regulators. These results are measurable,using one or more senses to gather knowledge. information that doesn't involve numbers or measures. the process of making an understanding based on observations and previous knowledge. Quantitative investigations always involve numbers.

4 0
3 years ago
Read 2 more answers
Difference between acids and bases in terms of ions
Lady_Fox [76]

Answer:

The answer will be listed below.

Explanation:

An acid is a substance that produces (H+) as the only positive ion when mixed with water. A base is a substance that produces (OH–) as the only negative ion when mixed with water.

8 0
3 years ago
Read 2 more answers
(True or false) The water molecule can be either an acid or a base. Justify.
iren [92.7K]

Answer:

TRUE!!!!

Explanation:

Water can act as both an acid and a base in solution and undergoes autoionization, where it can be both an acid and a base to itself. When mixed with an acid, water accepts hydrogen ions and acts as a base. However, when water is mixed with a base, it donates hydrogen ions and acts like an acid.

Not my words! I hope this helps :)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Does nitrous oxide in a car kill the car or help it
    13·1 answer
  • Which statement best describes the lattice structure of solid sodium chloride?
    11·1 answer
  • What is the name for CrN:
    5·2 answers
  • Which nitrogen base sequence is the partner of T-C-A-G-C-A
    15·2 answers
  • What percent of the sun’s light does the moon reflect back? Why is it such a low number?
    7·1 answer
  • What strongly affects the movement of air masses along the earth's surface
    14·2 answers
  • Please Help Meeee.<br> Best answer will get brainliest.
    13·2 answers
  • When there are no decomposers, what happens to the grass?
    14·2 answers
  • Which of the following characteristics is part of a good scientific experiment?
    14·1 answer
  • Isotopes are:
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!