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
tatiyna
2 years ago
8

For a science project, Janet performs four experiments that are supposed to show a chemical reaction. She displays her results i

n a table. A 4-column table with 4 rows. The first column titled experiment has entries 1, 2, 3, 4. The second column titled substances has entries water + heat, vinegar + baking soda, cabbage juice + lemon juice, liquid A + liquid B. The third column titled evidence of reaction has entries gas formation, gas formation, color change, precipitate formation. The fourth column titled Chemical Reaction ? has entries yes, yes, yes, yes. In the column titled "Chemical reaction?,” which experiment’s data should be changed to "No”? Experiment 1 Experiment 2 Experiment 3 Experiment 4
Chemistry
2 answers:
NeX [460]2 years ago
6 0

Answer: D

Explanation:

dolphi86 [110]2 years ago
5 0

Answer:

it is A

Explanation:

You might be interested in
Very important !!!!!!!!!!!!
Mademuasel [1]
They speed up reactions by lowering activation energy. Many enzymes change shape when substrates bind.
8 0
2 years ago
What is the pH of 0.0001 M NaOH
kow [346]
Well. NaOH is a base. That's the first thing you need to watch for.
So to find the pOH, you take -log(.0001)
that would be 4. So now you have the pOH and <u>you still need to find the pH
</u>To find pH from pOH, you take 14(the maximum pH,sorta)-pOH(in this case 4)
14-4=10 The pH of NaOH is 10
5 0
3 years ago
If the solvent is a liquid, then the solute:
Lelechka [254]

Answer:

must be either a gas or liquid

8 0
3 years ago
How are planes contrail lines similar to clouds
Tom [10]
Both are mainly composed of droplets of condensed water
8 0
3 years ago
Which of the following elements is the most reactive?<br> A. At<br> B.Cl<br> C.I<br> D.Br
adell [148]

Answer:

B.  Cl.

Explanation:

These are Group  7 elements whose reactivity reduces as you go down the group. Chlorine  has a smaller atoms than the rest and has a stronger  tendency to grab an electron in its valency shell. This is because its nucleus is closer to the outer electrons than the other elements.

6 0
2 years ago
Other questions:
  • Which term best describes the element lanthanum? nonmetal inner transition metal transuranium radioactive
    15·1 answer
  • A community needs more electrical energy. The community is located in an
    15·2 answers
  • Is SiCl4 ionic or covalent?​
    12·1 answer
  • Why do you think the Na+ ion is smaller than a neutral Na atom? Why do you think the Cl - ion is larger than a neutral Cl atom?
    11·1 answer
  • DUE IN A FEW!!!!!! PLS HELP
    8·2 answers
  • Which of the following elements has the lowest first ionizition energy ?
    7·2 answers
  • Which term describes energy stored in the bonds between atoms?
    14·1 answer
  • What are 5 examples of monosaccharides? What is also known as monosaccharide?​
    13·1 answer
  • A water solution is found to have a molar oh- concentration of 3.2 x 10-5. the solution would be classified as :_______.
    8·1 answer
  • An intermediate step in the production of nitric acid involves the reaction of ammonia with oxygen gas to form nitrogen monoxide
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!