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Bas_tet [7]
3 years ago
15

What is the correct name for MgF2?

Chemistry
2 answers:
maxonik [38]3 years ago
6 0
MgF2 is <span>Magnesium fluoride

hope this helps!</span>
defon3 years ago
5 0
The chemical name for MgF2 is Magnesium Fluoride. Hope that helps.
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How would you describe (explain the differences) solids, liquids, and gases to a 4th grader? Be clear please.
musickatia [10]
A solid is an object that has definite shape, volume, and mass. This means that the shape, volume, and mass will never change.

A liquid is something that has definite volume and mass, but it does not have definite shape because a liquid is the shape of its container.

A gas <span>does not have a definite shape, mass, or <span>volume because a gas is able to spread around.</span></span>
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3 years ago
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A 1. 3×10−6mol sample of sr(oh)2 is dissolved in water to make up 25. 0 ml of solution. what is the ph of the solution at 25. 0∘
VMariaS [17]

The pH of the solution at 25 degree celsius of 1.3 × 10⁻⁶ moles of a sample of Sr(OH)₂ is 10.02.

<h3>How do we calculate pH?</h3>

The pH of any solution gives an idea about the acidic and basic nature of the solution and the equation of pH will be represented as:

pH + pOH = 14

Given that,

Moles of Sr(OH)₂ = 1.3 × 10⁻⁶ mol

Volume of solution = 25mL = 0.025L

The concentration of Sr(OH)₂ in terms of molarity = 1.3×10⁻⁶/0.025

                                                                                    = 5.2×10¯⁵M

Dissociation of Sr(OH)₂ takes place as:

                               Sr(OH)₂ → Sr²⁺ + 2OH⁻

From the stoichiometry of the reaction 1 mole of Sr(OH)₂ produces 2 moles of OH⁻.

Given that the base is a strong base and that it entirely dissociates into its ions, the hydroxide ion concentration is 5.2×10¯⁵×2 = 1.04×10¯⁴ M.

pOH = -log[OH⁻]

pOH = -log(1.04×10¯⁴)

pOH = 3.98

Now we put this value on the first equation we get,

pH = 14 - 3.98 = 10.02

Therefore, the value of pOH is 10.02.

Learn more about pH here:

brainly.com/question/24595796

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4 0
2 years ago
WHAT DOES THIS SAY AND WHAT THE ANSWER
notka56 [123]

It says

The majority of elements on the periodic table are ______________ (metals, nonmetals, or metalloids).  

The periodic table on the left separates elements into three groups: the metals (green in the table), nonmetals (orange), and metalloids (blue). Most elements are metals.

Apr 18, 2003

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3 years ago
What is mole in chemistry?
Zigmanuir [339]

Answer:

the animal

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a rodent thas in the ground

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What structure is found in some but not all plant cells
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The chloroplasts i believe is the answer
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