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Bad White [126]
3 years ago
11

Question :

Chemistry
1 answer:
Yuliya22 [10]3 years ago
4 0

Answer:

If the earring is still gold it is a physical change.

Explanation:

Melting something can be a chemical change but since the gold is still gold its physical. Physical actions, such as changing temperature or pressure, can cause physical changes. No chemical changes took place when you melted the ice. The water molecules are still water molecules.

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Jasmine and her partner want to test to see if there is a relationship between how much of her solar panel is exposed to sunligh
Alexeev081 [22]

Answer:

The amount of solar panel covered​

Explanation:

The variable that is the independent one is the one that Jasmine is changing. In this case, it is the amount of solar panel covered, via a piece of paper.

3 0
3 years ago
Read 2 more answers
Determine the volume of fluid in the graduated cylinder shown.
Sladkaya [172]

Answer:

22.5 mL

Explanation:

We are given an amount of a fluid in a graduated cylinder and required to determine its volume.

Liquids always take the shape of the container they are placed in. In the graduated cylinder shown, note how the top of the fluid curves downwards. The volume of the liquid is usually determined at the bottom of this curve or what is called the meniscus.

The bottom of the meniscus is at the 22.5 mL level and thus the volume of the fluid is 22.5 mL

7 0
3 years ago
Read 2 more answers
Which is more reactive C, O, CL​
solniwko [45]

Oxygen(O)

Explanation:

Oxygen is the most reactive of all the listed elements. One can determine their reactivities based on the electronegativity values.

  • Every element combines with one another to attain stability like the noble gases.
  • Electronegativity is the relative ease with which the atoms of elements attracts valence electrons in a chemical bond.
  • On the pauling's electronegativities table of elements, carbon is 2.5, oxygen 3.5 and Cl is 3.0
  • Oxygen will have the highest reactivity and the most tendency to combine with other atoms.

Learn more:

Electronegativity brainly.com/question/11932624

#learnwithBrainly

7 0
4 years ago
Is it true or false?
svet-max [94.6K]
False. It can’t because a glaciers weight combined with its gradual movement can drastically reshape the landscape over hundreds and even thousands of years.
6 0
4 years ago
If you add a chunk of zinc to a beaker of acid and zinc shavings to another beaker of acid, the sample with the zinc shavings wi
Svet_ta [14]

Answer:

The answer to your question is: letter C

Explanation:

The only difference between the samples of Zinc is their presentation, one is a chunk of zinc and the other one is shavings.

1) Catalyst                              This option is incorrect because the description

                                                do not mention anything about catalyst.    

2) Nature of the reaction      The nature of the reaction is the same.

3) Surface area                       This is the right answer because in the chunk

                                                 there is less surface area than in the shavings.

4) Temperature                       It is not mention anything about temperature in

                                                the description.

8 0
4 years ago
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