2 years ago

30 point. What is formed when a hydroxyl group is substituted for a hydrogen?

Chemistry

1 answer:

Andru [333]2 years ago

6 0

Haloalkanes

Yeah it’s that

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Someone help me please!!!

Montano1993 [528]

A. 6 moles

B. 9 moles

C. 3 moles

D. 20 moles

I think please check me, in case I am wrong

8 0

3 years ago

6 How many moles are in a 321 g sample of magnesium?

Tatiana [17]

Answer:

13.4mol of Mg

Explanation:

Given parameters:

Mass of magnesium = 321g

Unknown:

Number of moles = ?

Solution:

The number of moles of a substance is given as;

Number of moles = $\frac{mass}{molar mass}$

Molar mass of Mg = 24g/mol

Insert the parameters and solve;

Number of moles = $\frac{321}{24}$ = 13.4mol of Mg

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2 years ago

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Sonja [21]

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3 years ago

The ion with 36 electrons, 34 protons, and 44 neutrons

Reil [10]

While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall
2
−
charge.
We represent this selenide ion as
S
e
2
−
. Do I win 5 pounds?

Z= 34, therefore the atom is selenium

7 0

3 years ago

How many molecules are in 13 moles of oxygen?

natima [27]

Answer:

mass/13of molecules .........

8 0

3 years ago

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