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
Monica [59]
3 years ago
7

20.

Chemistry
2 answers:
sergiy2304 [10]3 years ago
8 0
I think the anwser is A
tensa zangetsu [6.8K]3 years ago
8 0

Answer:

Maybe A

Explanation:

You might be interested in
Macie performs an experiment and finds evidence that does not agree with a theory. Is the evidence enough to change the theory?
alexira [117]

I would say that it is not enough evidence to change the theory because she has only done the experiment once and may have gotten something wrong. She will need to repeat her experiment at least 3 times her to see if she gets the same answers or i5 changes.

5 0
3 years ago
In Kevin’s favorite comic book, the superhero has special powers. In one adventure, the superhero must stop an evil villain who
KATRIN_1 [288]

Answer:

3

Explanation:

The law of conservation of energy states that energy cannot just be created, so answer one is out. Energy also cannot be simply destroyed, so answer to is out as well. From here it gets tricky, since both answers make some sense under these rules. However, absorbed is bassically the same as destroying it leaving only answer three. Answer three <em>does</em> obey these laws, as energy can be converted.

3 0
2 years ago
The picture above shows the water cycle. In the water cycle, water travels from the land to the sky and back again. Water leaves
stepan [7]

The picture above shows the water cycle. In the water cycle, water travels from the land to the sky and back again. Water leaves the ocean through <u>Evaporation</u><u> </u>and returns to the ocean through <u>Precipitation</u><u> </u><u>and</u><u> </u><u>run-off</u><u>.</u><u> </u>

<u>Thank</u><u> </u><u>You</u><u> </u><u>☺️</u><u> </u><u>☺️</u><u>.</u><u> </u>

<h3><u>☆</u><u> </u><u>★</u><u> </u><u>Make It</u><u> </u><u>Brainlist Answer</u><u> </u><u>Please</u><u>.</u><u>.</u><u>.</u><u>.</u><u>.</u><u> </u></h3>
3 0
3 years ago
Ms. Block's students are studying chemical reactions as well as the law of conservation of matter. A classic reaction occurs whe
goblinko [34]

The answer is; C

Conservation of matter in a reaction means that the mass of matter in the products is equal to the mass of the reactants. Energy/matter cannot be created or destroyed but converted from one form to another.

An expanding balloon with the increased evolution of gas is a good visible practical sign in the experiment on the conservation of matter in the reaction. As the magnesium disappears with an increased input of hydrochloric acid, the balloon gets bigger showing that more hydrogen is evolved from the reaction;

2HCL + Mg  MgCl2 + H2  


4 0
3 years ago
Read 2 more answers
Please help help ASAP Please help It’s do in a 1 hour What conclusion can you draw about the relationship between physical activ
hjlf

Answer:

During exercise, heart rate can rise dramatically, from a resting rate of 60–80 beats per minute to a maximum rate of about 200 for a young adult. While you are running, blood flow is diverted toward tissues that need it most. For example, muscles in the arteries in your legs relax to allow more blood flow.

Explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • The equation shown represents cellular respiration. Glucose + X → Y + Water + Energy What do X and Y most likely represent? X re
    13·1 answer
  • What is biodiversity?
    15·1 answer
  • What is a diagnostic characteristic of a mineral used to make a cement slab in your house?
    5·1 answer
  • 9. Predict the major products formed when: (a) Toluene is sulfonated. (c) Nitrobenzene is brominated. (b) Benzoic acid is nitrat
    6·1 answer
  • PLEASE I NEED HELP NOW!!! I WILL GIVE 25 POINTS
    11·1 answer
  • Help Please. I don't really understand how to figure this out.
    14·1 answer
  • Consider the reaction: Br2(g) + Cl2(g) → 2BrCl(g) Given an initial mass of 14.21 g Br2, an excess of Cl2, and assuming that all
    10·2 answers
  • An artificial vesicle containing a 1 M glucose solution is composed of a phospholipid bilayer lacking any protein components oth
    15·2 answers
  • Place the following taxonomic ranks in order from most specific to least specific. A) Order; B) Phylum; C) Family
    10·2 answers
  • An element that is an invisible gas is <br><br> a gold<br> b copper<br> c iron<br> d oxygen
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!