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tresset_1 [31]
3 years ago
12

In your own words, summarize the steps you took to complete the lab. Explain what the test (independent) variable was, and what

the outcome (dependent) variable was.
Chemistry
1 answer:
alexira [117]3 years ago
5 0
We can’t answer this question without any information. There is no explanation of the lab, nor is there any data.
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Which of the following is an example of a change of state?
lord [1]

Answer:

Option B

Explanation:

  • For Option A the state is not changing but just has different look now.
  • For Option B the state is changing from gas to liquid drops due to cold glass
  • For Option C it hasn't changed state as both corn and flower is solid
  • For Option D paper and ash are both solids

Therefore our answer must be Option B

6 0
2 years ago
Which statement is true about BF3, a nonpolar molecule? It has nonpolar bonds and a symmetrical structure. It has nonpolar bonds
konstantin123 [22]
I think the correct answer is the first option. It has nonpolar bonds and a symmetrical structure. The structure of a BF3 molecule shows a symmetrical trigonal geometry. The net dipole moment of the molecule is zero therefore it is polar.
6 0
3 years ago
Read 2 more answers
Help needed ASAP, I will mark your answer as brainliest.
beks73 [17]

Answer:

D

Explanation:

^

6 0
2 years ago
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USE YOUR OWN WORDS. Each question must have a three sentence long answer!
Furkat [3]

Answer:

<em>YOU</em> use <em>YOUR OWN WORDS</em>

Explanation:

Have a good day! :)

8 0
2 years ago
Read 2 more answers
Breaking an object such as a mirror is an example of physical change, chemical change,physical reaction, chemical reaction
dangina [55]

Answer:

option A= Physical change

Explanation:

physical change:

" It is a change in which no new substance is formed"

Breaking of object like glass is the example of physical change because it is not change into another object. It effect the form of object but can not change the chemical composition.

Chemical changes:

" it is a change in which one substance is converted into new product through chemical reaction".

During the chemical changes the types and the number of atom remain same but their arrangement changed.

for example: burning of wood, baking of cake, digesting food, resting of iron etc.

Physical reaction:

" physical reaction occur during the molecular rearrangement. There is no chemical change occur"

In this type of changes no bonds are break to form new bonds, for example boiling point.

Chemical reaction:

" chemical reaction occur when molecules are chemically react with each others and bonds formation and breaking is also occur"

5 0
3 years ago
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