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]
2 years ago
6

8. What must occur for a change to be a chemical reaction?

Chemistry
1 answer:
Maslowich2 years ago
7 0

Answer: A. there must be a change in chemical properties  

Explanation:

You might be interested in
What are the conditions that are required for electrical energy to be present in an electrical circuit?
Nat2105 [25]

Answer:

 a supply of electric charges which are free to flow, some form of push to move the charges through the circuit and a pathway to carry the charges.

Explanation:

There's your answer have a good day

6 0
2 years ago
What kind of charge does a cation have
Ainat [17]
I believe it has a positive
 charge<span />
6 0
3 years ago
Read 2 more answers
10.A certain ion of an atom possesses 16 neutrons, a mass number of 31 and a charge
mars1129 [50]

Answer:

B. 13 electrons

Explanation:

Bcoz protons are the same with electrons and the neutrons too.

8 0
3 years ago
Which of the following lists includes only molecules?
siniylev [52]
We are unable to see any list? Can you provide one?
5 0
3 years ago
In a diagnostic test for leukemia, a person receives 4.1 mL of a solution containing selenium-75. If the activity of the seleniu
Tcecarenko [31]

To solve this problem, we can simply calculate for the dose by multiplying the volume of solution containing Selenium 75 and the activity of the Selenium 75. That is:

dose = 4.1 mL * (45 μCi/mL)

dose = 184.5 μCi

8 0
3 years ago
Read 2 more answers
Other questions:
  • A solution of ammonium carbonate is mixed with a solution of magnesium nitrate. If magnesium carbonate is insoluble in water, wh
    11·1 answer
  • A negatively charged particle has too many ___
    11·1 answer
  • A 240g hydrated sodium sulphide contains 162g of water of crystallisation. What is the correct molecular formula for this compou
    7·1 answer
  • Some molecules that are covalently bonded do not have a difference in charge across the molecule. These molecules are referred t
    15·1 answer
  • What type of reaction happens when you boil water or another liquid?
    8·2 answers
  • Which question can be answered by science A:which type of candy taste best B:which kind of backpack do students purchase most of
    10·1 answer
  • When is potential energy transformed into kinetic energy?
    9·2 answers
  • When the hydronium ion concentration of a solution is increased by a factor of 10, it means that
    13·1 answer
  • How do systems impact creation?
    5·1 answer
  • THIS IS URGENT PLEASE HELPPPPPP (NO LINKS PLEASE)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!