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3 years ago

PLZ ANSWER QUICKLY!!!!!!!

Chemistry

1 answer:

Elden [556K]3 years ago

8 0

Answer:

The water level will remain the same as salt cannot pass through.

Explanation: I'm sorry if wrong.

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When an electron in an atom spontaneously jumps from a higher energy state to a lower energy state, the atom?

vlabodo [156]

If an atom suffers from a collision, that causes an electron to jump from a lower to higher state, it is called collisional excitation

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3 years ago

In the "Design a Thermos" lab, the temperature of the thermos was compared with a container that was not insulated.

Hitman42 [59]

Answer:

Explanation:

so you can see the difference

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4 years ago

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what can we tell about an unknown substance based on its properties. Its science btw, i couldnt find the science subject

dsp73

Answer:

Measuring its density and comparing your result to a list of known densities, or other properties that give you useful info

Explanation:

You can use observations about substances to form a hypothesis about the substance by comparing it to others. Ex: if something is magnetic it must be made of one or more of the elements iron, cobalt, or nickel.

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3 years ago

Automobile bodies contain significant amounts of iron. The iron is protected by the addition of zinc. This is called galvanizati

Oksana_A [137]

Answer: The balanced chemical equation is written below.

Explanation:

Galvanization is defined as the process in which a protective layer of zinc is applied to iron or steel to prevent the metal from rusting.

Zinc prevents the oxidation of iron and acts as a reducing agent in the process.

The half reaction for the process follows:

Oxidation half reaction: $Zn\rightarrow Zn^{2+}+2e^-$

Reduction half reaction: $Fe^{2+}+2e^-\rightarrow Fe$

Net chemical equation: $Zn+Fe^{2+}\rightarrow Zn^{2+}+Fe$

Hence, the balanced chemical equation is written above.

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3 years ago

Which of the following could not act as a medium for a mechanical wave?

Y_Kistochka [10]

I believe it is either A or B

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3 years ago

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