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gizmo_the_mogwai [7]
3 years ago
9

What is pH?

Chemistry
1 answer:
galben [10]3 years ago
8 0
It's B. the positive logariuthm of the hydrogen ion concentra<span>tion</span>
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Do hydrogen lose 1 2 or 3 electrons to other atoms
iren2701 [21]

Answer:<em> Hydrogen can lose as much as possible there is no limits to it.</em>

<em>Hope this helps!</em>

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<em>Extras: Hydrogen is the chemical element with the symbol H and atomic number 1. hydrogen is the lightest element in the periodic table. Hydrogen is the most abundant chemical substance in the Universe (;</em>

7 0
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Which atom would it be most difficult to remove an electron from
Norma-Jean [14]
I would be difficult to remove an electron from a Noble or Inert Gas (also known as the group 8 or 0 elements).  This is because they all have filled outermost shells and as such the outermost shell would be held tightly to the nucleus and as such make it difficult to remove.  Examples Helium, Neon, Argon, Xenon, Krypton and Radon 
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3 years ago
How many moles are in 7.00E24 atoms of Ca?
iris [78.8K]

Explanation:

In chemistry, a mole is the base unit of the amount of substance in a system containing elementary entities (atoms, molecules, ions, electrons), and one mole of substance corresponds to the Avogadro's constant or 6.023 \ \times \ 10^{23}  entities. The stoichiometry equation that relates the amount of substance into the measurement in moles is

                                                           n \ = \ \displaystyle\frac{\alpha}{N_{A}},

where n is the number of moles, \alpha is the amount of substance and N_{A} is the Avogadro's constant.

Therefore,

                                           n \ = \ \displaystyle\frac{7.00 \ \times \ 10^{24} \ \text{atoms}}{6.023 \ \times \ 10^{23} \ \text{atoms mol}^{-1}} \\ \\ n \ = \ 11.624 \ \text{mol}.

3 0
3 years ago
A curve showing the relationship between temperature and time for a given amount of liquid heated a constant rate is a _________
svlad2 [7]
Answer: A curve showing the relationship between temperature and time for a given amount of liquid heated at constant rate is a heating curve.

This is the option a. heating.

The increase of temperatue as result of heating may be ploted to show the changes. This increase of temperature related with the heat depends of the heat capacity of the substance. For a fixed amount of heat, substances with high heat capacity exhibit a lower increase in temperature than substances with low heat capacity.
3 0
3 years ago
Read 2 more answers
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