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Akimi4 [234]
3 years ago
11

Which statement about electric charge is true? A. Electric charge is created by an electric current. B. Electric charge influenc

es whether objects attract or repel one another. C. Electric charge tends to be neutral in the nuclei of atoms. D. Electric charge will increase with an increase in temperature.
Chemistry
1 answer:
Anni [7]3 years ago
4 0

Answer:

A

Explanation:

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Because of river discharge, large changes in ocean salinity often occur __.
Lorico [155]
I’m guessing it would be A because the river discharge tends to gather near coastlines where the river ends
5 0
3 years ago
On a cold morning, the smoke coming out of a chimney is observed to be in blue color. What could be the reason? Name the effect
nirvana33 [79]

Stack effect? I'm not totally sure about this...

Explanation:

Large amount of tiny particles of water droplets, dust and smoke are present on a misty day. These tiny particles in the air scatter blue colour of white light passing through it. When this scattered light reaches our eyes, the smoke appears blue.

6 0
4 years ago
Which TWO scientist proposed an atomic model with a nucleus.
Zina [86]

Answer:

A. Rutherford and Bohr

Explanation:

I think this is right but I am not sure it has been a while since i read about them

7 0
3 years ago
A substance made up of only one type of atom would be a
mezya [45]

Answer:

Element

Explanation:

Because elements can be made with only one atom the rest of the answers cant be

4 0
3 years ago
How many milliliters of a 1.5 m h2so4 are needed to neutralize 35ml sample of a 1.5 m solution?
DochEvi [55]

Answer:

1) 17.5 mL

Explanation:

Hello,

In this case, the reaction between sulfuric acid and potassium hydroxide is:

H_2SO_4+2KOH\rightarrow K_2SO_4+2H_2O

In such a way, we notice a 1:2 molar ratio between the acid and the base, therefore, at the equivalence point we have:

2*n_{acid}=n_{base}

And in terms of concentrations and volumes:

2*M_{acid}V_{acid}=M_{base}V_{base}

Thus, we solve for the volume of acid:

V_{acid}=\frac{M_{base}V_{base}}{2*M_{acid}} =\frac{35mL*1.5M}{2*1.5M} \\\\V_{acid}=17.5mL

Best regards.

5 0
3 years ago
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