1. Amy's science teacher shows her class a model of an atom. Why is a model useful for studying atoms?

Chemistry

1 answer:

trapecia [35]3 years ago

3 0

Answer:

The parts of an atom cannot be directly observed.

Explanation:

An atom is the smallest indivisible particle of a substance that can take part in a chemical reaction.

Atoms are not observed with naked eyes because they are found in the realm of very small particles. It is impossible to observe the parts of an atom directly.

As a result of this, models suffice in explaining the parts of an atom. Hence the answer.

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Round to 4 significant figures. 35.5450

IrinaVladis [17]

Answer:

no sé m i e r d a ..............

Explanation:

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Read 2 more answers

9. Circle the atom in each pair that has the greater ionization energy.

Sedbober [7]

A: BE has more ionization energy than LI

B: CA has more ionization energy than BA.
C: NA has more ionization energy than K

D: AR has more ionization energy than P

E: CI has a more ionization energy than SI
F: LI has more ionization energy than K

If any of these are wrong feel free to correct me in the comments.

7 0

3 years ago

How do you preform water displacement

malfutka [58]

1. Fill a beaker or graduated cylinder with enough water to completely immerse the sphere in. 2. Record the baseline initial measurement. 3. Drop the sphere in. 4 Record final measurement.

6 0

3 years ago

A sample of ice is heated continuously until it becomes a liquid, and then a gas. Its temperature is recorded throughout and a g

padilas [110]

Answer:

The answer to your question is: C. The specific latent heat of fusion

Explanation:

A. The specific latent heat of vaporization Specific latent heat of vaporization indicates the transition from liquid to vapor, but we are not looking for this definition. This answer is wrong.

B. The specific heat indicates the amount of heat needed to increase the temperature of water 1°C, so this answer is wrong.

C. The specific latent heat of fusion . This heat indicate the transition from solid ie to liquid, so this is the right answer.

D. The internal energy measures the energy of the molecules of a substance, so this answer is wrong.

3 0

3 years ago

How do I write 0.03438 m in scientific notation using 3 digits?

Law Incorporation [45]

3.44x10^2
you move the decimal over to get a single digit number with change. The number of times you move the decimal is the number for the 10 power

4 0

3 years ago