CHEMISTRY MIDDLE SCHOOL

Why don't molecular compounds conduct electricity when dissolved in water?

Answers

Answer 1

Answer: they do conduct electricity. they don’t conduct electricity when solid

Answer 2

Answer:

Answer:

Person above me is correct

Explanation:

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Related Questions

How much of each gas is there in 100cm3 air?

Answers

Each 100 cm3 of air, constitutes 78cm3 nitrogen, 21cm3 oxygen and 1cm3 constitutes of other gases like Argon, ozone, carbon dioxide and water vapour in small amounts.

Dry air contains 78% nitrogen , 21% oxygen and 1%noble gases.

An (blank) is an abbreviation for the name of an element and usualy has eighter one or two letters

Answers

The Chemical Symbol is the Abbreviation for the name of an element.

In this reaction, how many grams of O2 are required to completely react with 110 grams of Al

Answers

You'd need
33.6 g
of aluminium to react with that much manganese dioxide.
So, you've got your balanced chemical equation for this reaction
3
M
n
O
2
(
s
)
+
4
A
l
(
s
)
→
3
M
n
(
s
)
+
2
A
l
2
O
3
(
s
)

The mole ratio that exists between manganese dioxide and aluminium is simply the ration between the stoichiometric coefficients placed in front of them.
In your case, the balanced chemical equation shows that you have 3 moles of manganese dioxide reacting with 4 moles of aluminium; this means that your mole ratio will be
3:4
.
Likewise, the mole ratio between aluminium and manganese dioxide will be
4:3

→
4 moles of the former need 3 moles of the latter.
You can put this mole ratio to good use by determining how many moles of aluminium are needed to react with the number of moles of manganese dioxide present in 81.2 g. So,
81.2 g MnO
2
⋅
1 mole
86.94 g
=
0.9340 moles

M
n
O
2

This means that you'll need
0.934 moles
M
n
O
2
⋅
4 moles Al
3 moles
M
n
O
2
=
1.245 moles Al
To determine the number of grams needed to get that many moles use aluminium's molar mass
1.245 moles Al
⋅
26.98 g
1 mole Al
=
33.59 g Al

Rounded to three sig figs, the answer will be
m
aluminium
=
33.6 g

What goes in the rest?

Answers

Answer:

E. Mass number

H. Ion

F. Isotopes

I hope you have a great day. I'm sorry that I didn't know C or I.

Which statement accurately describes non renewable energy sources ?A group of resources made of inorganic matter?

A type of resource located only on the United States

A resource that cannot be replenished in a short period of time

A group of resources found both above and below the earths surface

PLEASE ANSWER !!!

Answers

Answer:The correct answer is option:

'A resource that cannot be replenished in a short period of time'.

Explanation:

Renewable resources: Resources which are capable of restoring themselves overtime through natural process.They never get exhausted completely.For example: bio mass energy, solar energy etc.

Non-Renewable resources: Resources that cannot be replenished overtime through natural process.These are the resources which are used in wise manner so that to prevent their exhaustion. For example: coal, petroleum etc.

Hence, from the given the options the correct answer is :

'A resource that cannot be replenished in a short period of time'.

a resource that cannot be replenished in a short period of time

Is ammonia a compound or an element?

Answers

a ammonia is a compound

Other Questions

Which type of organic molecule is an amino acid? A. building block of carbohydrates B. building block of proteins C. building block of nucleic acids D. building block of lipids

How does the chemical structure of a paper towel differ from the potatoes?

23g of sodium reacted with 35.5g of chlorine. Calculate the mass of the sodium chloride compound formed.

What is the chemical name for CCl4