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Nezavi [6.7K]
4 years ago
15

When Ca+2 and O-2 form a compound what is the overall charge of the compound formed

Chemistry
1 answer:
defon4 years ago
5 0
<span>magnesium cations (Mg </span><span>2+</span>) and oxide anions (<span>O 2</span>−<span>)</span>
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Magnesium (24.48g) reacts with hydrochloric acid (xg) to produce hydrogen gas (2.04g) and magnesium chloride (96.90g). How much
andriy [413]

Answer:

Mass = 73.73 g

Explanation:

Given data:

Mass of Mg used = 24.48 g

Mass of HCl used = ?

Mass of hydrogen gas produced = 2.04 g

Mass of Magnesium chloride produced = 96.90 g

Solution:

Chemical equation:

Mg + 2HCl   →    MgCl₂ + H₂

Number of moles of Mg:

Number of moles = mass/ molar mass

Number of moles = 24.48 g/ 24.305 g/mol

Number of moles = 1.01 mol

Now we will compare the moles of Mg with HCl from balance chemical equation.

                              Mg             :            HCl

                               1                ;               2

                            1.01              :           2/1× 1.01 = 2.02 mol

Mass of HCl react:

Mass = number  of moles × molar mass

Mass =  2.02 ×  36.5 g/mol

Mass = 73.73 g

4 0
3 years ago
Read 2 more answers
Can anyone help please
Aleks [24]

Answer:

Here you go! Hopefully this helps your question.

1) Apples May Lower High Cholesterol and Blood Pressure.

2) Apples Can Support a Healthy Immune System.

3) Apples Are a Diabetes-Friendly Fruit.

Explanation:

None needed

4 0
2 years ago
Read 2 more answers
Draw a complete Lewis structure for the conjugate acid of nitromethane that shows all bonds, unshared electron pairs, and minimi
Dvinal [7]
 <span>CH3-N=O, [with one more O attached to N] <=====> CH2=N-O- + H+ ; this negative charge on O can be with the other O too, thus it gets stabilises itself.This is called the conjugate acid, as it has lost a proton. This is called Nitro- Acinitroso tautomerism .


I hope my answers has come to your help. God bless and have a nice day ahead!</span>
5 0
3 years ago
Read 2 more answers
Describe the scale used to measure the basicity of a substance. Demonstrate how you could differentiate a weak base from a stron
amm1812

The scale used to measure the basicity of a substance is called the pH Scale. A base which when measured on a pH scale obtains a  value greater than 7 but less than or equal to 10 is weak base and from 10-14 is strong base

<h3>Meaning of Base and basicity</h3>

A base is any substance that has the ability to accept hydrogen ion in water and also netralize an acid when mixed together.

Basicity is an attribute associated with the pH scale measurement of values above 7 to 14.

Basicity increases on the scale from 7 to 14. On the pH scale 7 is neutral. So the higher we go the more basic a solution becomes until it gets to its highest point which is 14.

In conclusion, The scale used to measure the basicity of a substance is called the pH Scale. A base which when measured on a pH scale obtains a  value greater than 7 but less than or equal to 10 is weak base and from 10-14 is strong base

Learn more about basicity : brainly.com/question/172153

#SPJ1

6 0
2 years ago
Describe what happens if you change your number of electrons in an atom
brilliants [131]
If you can a number of electrons in a atom you will get a ion of the element
6 0
3 years ago
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