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inysia [295]
4 years ago
14

Explain why atoms are neutral.

Chemistry
1 answer:
svlad2 [7]4 years ago
8 0

Atoms are generally neutral because they have an equal amount of protons and electrons.

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What is the half life of an atom that goes from 16000 g to 125 g in 163.24 days.
Alenkinab [10]

Answer:

23.32\ \text{days}

Explanation:

N = Final mass of atom = 125 g

N_0 = Initial mass of atom = 16000 g

t = Time taken = 163.24 days

t_{1/2} = Half life

We have the relation

N=N_0\dfrac{1}{2}^{\dfrac{t}{t_{1/2}}}\\\Rightarrow 125=16000\times \dfrac{1}{2}^{\dfrac{163.24}{t_{1/2}}}\\\Rightarrow \dfrac{125}{16000}=\dfrac{1}{2}^{\dfrac{163.24}{t_{1/2}}}\\\Rightarrow \ln0.0078125=\dfrac{163.24}{t_{1/2}}\ln0.5\\\Rightarrow t_{1/2}=\dfrac{163.24\times\ln0.5}{\ln0.0078125}\\\Rightarrow t_{1/2}=23.32\ \text{days}

The half life of the atom is 23.32\ \text{days}.

3 0
3 years ago
Determine the force of gravitational attraction between a 4,000 kg elephant that is 10 meters away from a 180 kg lion.​
Anastaziya [24]

Answer:

What grade is this in for? Seems hard

4 0
3 years ago
What is the formula for the carboxylic acid functional group?
boyakko [2]

Answer: C

Explanation:

This is a fact.

7 0
2 years ago
Which is a characteristic of mixtures?
pshichka [43]

Answer:

A major characteristic of mixtures is that the materials do not chemically combine

Explanation:

Mixtures can be divided into those that are evenly distributed (homogeneous) and those that aren't (heterogeneous)

8 0
3 years ago
Read 2 more answers
Minerals in geodes form spectacular euhedral crystals because ________. A. all of the elements incorporated in the crystals are
11111nata11111 [884]

Answer:

C. minerals within geodes are always framework silicates

Explanation:

This is true going by the facts that, it is only the silicates that can be able to form crystals as obtainable in diamonds etc. Since the minerals in geodes are in the framework of silicates families, they can be able to form euhedral crystals.

4 0
3 years ago
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