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Vsevolod [243]
3 years ago
7

Theory is often used as a synonym for idea in everyday life.

Chemistry
1 answer:
Rasek [7]3 years ago
8 0
I think B. As an idea is just a way that could be possible
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An atom that has lost one or more electrons is a(n) _______
kompoz [17]

Answer:

An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.

8 0
3 years ago
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What would be the pH of an H2SO4 solution if the [H+] = 4.58 x 10-5 moles/liter?
Ghella [55]

Answer: pH of an H_2SO_4 solution is 4.34

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydrogen ion concentration.

pH=-\log [H^+]

H_2SO_4\rightarrow 2H^++SO_4^{2-}

Putting in the values:

pH=-\log[4.58\times 10^{-5}]

pH=4.34

Thus pH of an H_2SO_4 solution if the [H^+] is 4.58\times 10^{-5}] is 4.34

4 0
2 years ago
Which of the following are diatomic elements? Select all that apply.
TiliK225 [7]

Answer:

C

Explanation:

A diatomic element in that list is Bromine

8 0
2 years ago
There are some exceptions to the trends of first and successive ionization energies. For each of the following pairs, explain wh
NNADVOKAT [17]

Answer:

(b) IE₂ of Ga >  IE₂ of Ge

Explanation:

Electronic configuration of Ga is [Ar] 3d¹⁰4s²4p¹

Electronic configuration of Ge is [Ar] 3d¹⁰4s²4p²

After 1st ionisation , Ga  becomes [Ar] 3d¹⁰4s² and becomes stable . Its

2 nd ionisation requires higher amount of ionisation energy. In case of Ge , there are 2 electrons in outermost orbital so it becomes stable after ionisation of 2 electrons.

4 0
3 years ago
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If there is a graduated cylinder containing 20mL of water and a small rock is gently placed inside it, and the water level insid
LekaFEV [45]

Answer:

5

Explanation:

just subtract 20-25 and 5 is left over which is how much the water when up with the rock.

8 0
3 years ago
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