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
konstantin123 [22]
3 years ago
12

Which of the following is not an example of a chemical change?

Chemistry
2 answers:
liubo4ka [24]3 years ago
7 0

Answer:

Dissolving salt

Explanation:

APEX :)

ale4655 [162]3 years ago
4 0
Salt dissolving in a glass of water, using electricity to break down water into hydrogen and oxygen, rust forming on an iron fence and gas burning on a stove.  
You might be interested in
With which organisms do fungi partner to produce lichen and Mycorrhizae
xxTIMURxx [149]

Parasitic fungi often cause illness and may eventually kill their host. Two common mutualistic relationships involving fungi are mycorrhiza (fungi and plant roots) and lichen (fungi and either cyanobacteria or green algae

7 0
3 years ago
In an experiment, what is an independent variable?
Andrews [41]

Answer:

The independent variable (IV) is the characteristic of a psychology experiment that is manipulated or changed by researchers, not by other variables in the experiment.

For example, in an experiment about the effect of nutrients on crop growth: The independent variable is the amount of nutrients added to the crop field. The dependent variable is the biomass of the crops at harvest time.

Therefore : 3. the variable that responds to what the scientist changes in an experiment

8 0
3 years ago
What best explains why sodium is more likely to react with another element than an element such as neon
goblinko [34]

Answer: Neon is not reactive (full valence shell)

Explanation:

Neon is a noble gas and has a stable structure (8 valence electrons) -therefore, is not very reactive.

3 0
4 years ago
How does changing the temperature affect the chemical reaction?
Rufina [12.5K]

Answer:

C

Explanation:

Temperature is directly related to kinetic energy (KE). As we raise temperature, we are raising KE, as well. Particles with more KE move more quickly and with more force.

This means that these particles are more likely to collide with each other and react to allow the chemical reaction to follow through. In turn, if the chemical reaction is more likely to go to completion, the reaction rate increases, eliminating A and B.

The concentration of the solute is not affected by the temperature; in other words, temperature will not increase or decrease the amount of solute in the solution, so eliminate D.

Thus the answer is C.

Hope this helps!

4 0
4 years ago
According to reference table adv-10, which is the strongest reducing agent?
Mumz [18]
Li(s)    (answer  A)   
    Li  is  strongest  reducing  agent  because  of  the   lowest  standard reduction  potential.  when  something  is  oxidized, it  reduces  another  substance,  becoming a  reducing.Hence  Lithium  is  strongest  reducing  agent. Reducing  agent   is  stronger  when  it  has  a  more  positive  oxidation potential.
3 0
3 years ago
Other questions:
  • 1.) Which of the following is an example of using creativity while doing background research?
    15·1 answer
  • How many protons does mercury have?
    14·2 answers
  • Antimony has 2 naturally occurring isotopes. The mass of antimony-121 is 120.904 amu and the mass of antimony-123 is 122.904 amu
    11·1 answer
  • Bromine- is radioactive and has a half life of seconds. What percentage of a sample would be left after seconds? Round your answ
    14·1 answer
  • 1 point
    5·1 answer
  • Why do unicellular organisms live mainly in water?
    14·1 answer
  • what is the change in freezing point of a 1.75 molal solution of nacl in water? the kf for water is 1.86 degrees c/m.
    6·2 answers
  • Is VAL ("23")+5=28? It is a true and false question.​
    14·1 answer
  • A student conducts an experiment using a common but potentially harmful bacteria culture. After working with the bacteria, which
    11·1 answer
  • Swift has a balloon of gas at 64psi. The volume of the balloon is 6.958L. If the volume of the balloon is reduced to 3L. what wi
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!