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lara [203]
3 years ago
14

Can yall help with these two questions please thx

Chemistry
2 answers:
alexira [117]3 years ago
8 0
1. True 2. I think A and D. I’m not sure though
Ilya [14]3 years ago
4 0

Answer:

First one is true and the second select all of them

Explanation:

lemme know if it's correct

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Sara has a red jacket. Which of the following models shows how Sara's jacket reflects and/or absorbs light?
just olya [345]
I think it’s C. , C. Should be right because the red jacket is absorbing the light
7 0
4 years ago
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They are substances that produce ions when they dissolve in water.
stira [4]

Electrolytes are substances that produce ions when they dissolve in water.

What are electrolytes?

When some substances are dissolved in water, they undergo physical or chemical changes, creating ions in solution. These substances form an important class of compounds called electrolytes. Substances that do not release ions when dissolved are called non-electrolytes. A substance is said to be a strong electrolyte if the physical or chemical process that produces ions is inherently 100% efficient (all dissolved compounds produce ions). A solute is said to be a weak electrolyte if only a relatively small portion of the solute undergoes ion production processes.

By measuring the electrical conductivity of aqueous solutions containing substances, substances can be identified as strong, weak, or non-electrolyte. To conduct electricity, a substance must contain free-moving charged species. The best known is the conduction of electricity through metal wires. In this case, the mobile charged unit is the electron.

Therefore, Electrolytes are substances that produce ions when they dissolve in water.

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7 0
2 years ago
Where do convection currents form?
pshichka [43]

Answer:

I think it's C

<u>Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth's crust.</u>

8 0
2 years ago
Which substances exhibit only London forces ?? He,H2O,HCl, Cl2
azamat

Answer:

I think it will be He, and Cl2

8 0
4 years ago
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SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend, Sandy, told him that he should try u
-BARSIC- [3]

Answer:

1) SpongeBob investigated whether Clean-O detergent is a good laundry soap. 3) the dependent variable is the color of the pants/how clean the pants were. 4) SpongeBob's conclusion should be that Clean-O detergent is not a good detergent.

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You didn't have #2 - it was the same question as #1

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