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Nata [24]
4 years ago
14

Which of the following is true about acids?

Chemistry
1 answer:
Alexxx [7]4 years ago
4 0
The answer is C which is why we measure things on a pH scale.

Some examples of acids are HCl and H2SO4. (These are the only ones I can remember atm) but as you can see they both contain Hydrogen.
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The box shows the element nitrogen as it appears in the
ozzi

Answer:

Option D. Electron clouds with a total of 7 electrons.

Explanation:

For an atom to be neutral (i.e having a charge of zero), the number of protons and electrons must be equal.

Thus, to know which option is correct, we shall determine the number of protons and electrons in the nitrogen atom as given in the question above.

From the question given above, we obtained the following:

Atomic number = 7

Mass number = 14

Number of protons =?

Number of electrons =.?

Next, we shall determine the number of protons in the nitrogen atom as follow:

Atomic number of an element is simply defined as the number of protons in the atom of the element. Mathematically,

Atomic number = proton number

Atomic number = 7

Therefore,

Number of protons = 7

Next, we shall determine the number of electrons in nitrogen atom as follow:

Since the atom is neutral (i.e having a charge of zero), the number of protons and electrons are equal i.e

Number of protons = number of electrons

Number of protons = 7

Therefore,

Number of electrons = 7

Thus, the nitrogen atom must have 7 electrons in order for it to be neutral.

**** Check ****

Charge of atom = Proton – Electron

Charge = 0

Proton = 7

Electron = 7

Charge of atom = Proton – Electron

0 = 7 – 7

0 = 0

8 0
3 years ago
Which group on the periodic table will react with oxygen to give covalent compounds with formula XO2?
AleksandrR [38]

Explanation:

group 1 elements reacts with oxygen

4 0
3 years ago
Lakes can disappear due to _
cupoosta [38]

Answer:

i think it's eutrophication

5 0
3 years ago
Groups on the Periodic Tables have the same number of valence electrons which affects
Anastasy [175]

Answer:

The vertical columns (group) of the periodic table are arranged such that all it's elements have the same number of valence electrons. All elements within a certain group thus group share similar properties.

8 0
3 years ago
Using proper units is important when recording data. In this lab, you determined three properties of the objects: mass,
SVEN [57.7K]

Answer:

1)grams 2) cubic centimeters 3) grams/cubic centimeters

Explanation:

I just put it in <3

6 0
3 years ago
Read 2 more answers
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