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
WITCHER [35]
3 years ago
5

100 POINTS!!! :0! What two things do all chemical reactions have in common (tick 2)? 1. They create new substances- the substanc

es you end up with are different from the ones you started with. 2. They do not create new substances- the products at the end look exactly the same as the reactants at the start. 3. They are reversible- you can get back the substances that you started with at the end of the reaction 4. They are irreversible- at the end of the reaction, you can't get back the substances you started with
Chemistry
2 answers:
dusya [7]3 years ago
7 0

Answer:

1 and 4

Explanation:

Dovator [93]3 years ago
3 0

Answer:

Explanation:

The answer is 1st and 4th point

hope this helps

plz mark it as brainliest!!!!!!

You might be interested in
10 What is a characteristic of all living organisms?
Vladimir [108]

Answer:

D - ingestion

Explanation:

7 0
3 years ago
Read 2 more answers
Which of the following is NOT a function of the muscular system
Bumek [7]

Answer:

where are the answer choices

Explanation:

4 0
3 years ago
If you dilute a solution what is the only thing about the solution that does NOT change?
lukranit [14]

Taking into account the definition of dilution, moles of solute (option C) is the only thing about the solution that does NOT change.

<h3>Dilution</h3>

When it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.

Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.

In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.

A dilution is mathematically expressed as:

Ci×Vi = Cf×Vf

where

  • Ci: initial concentration
  • Vi: initial volume
  • Cf: final concentration
  • Vf: final volume

<h3>Summary</h3>

In summary, moles of solute (option C) is the only thing about the solution that does NOT change.

Learn more about dilution:

brainly.com/question/6692004

brainly.com/question/16343005

brainly.com/question/24709069

#SPJ1

8 0
1 year ago
Name two objects which are colourless liquid​
mina [271]

Answer:

water and asid sulfuric

4 0
3 years ago
Read 2 more answers
Audio and radio signals can be carried over electric wires and they are examples of ________ current. A) alternating B) direct C
ivann1987 [24]

Answer:

Direct current!

Explanation:

Process of elimination, it isn't A, it isn't C, and it definitely isn't D

4 0
4 years ago
Other questions:
  • The compound cisplatin, pt(nh3)2cl2 , has been studied extensively as an antitumor agent.
    11·1 answer
  • At saturation, the further addition of water vapor or a decrease in temperature results in __________
    11·1 answer
  • The shape of a molecule is determined by???
    9·1 answer
  • A solution contains cr3+ ions. the addition of 0.063 l of 1.50 m naf solution was needed to completely precipitate the chromium
    14·1 answer
  • Which of the following laws states that the volume of a gas and the amount of a gas in moles are directly proportional?
    15·1 answer
  • Peptides can be separated using an ion‑exchange column based on their isoelectric (pI) values. At which pH values would two diff
    11·1 answer
  • Why is melting point considered a physical property?
    8·1 answer
  • Select the most reactive metal and the most reactive nonmetals items on this periodic table
    14·1 answer
  • How much of a 10 M solution is needed to make 1 liter of a 1 M solution
    8·1 answer
  • Please write down the definitions of elements, compounds, mixtures, homogenous mixtures, and heterogenous mixtures.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!