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dalvyx [7]
3 years ago
15

250 mL of 2.00M sodium chloride contains how many moles of NaCl

Chemistry
1 answer:
boyakko [2]3 years ago
5 0

Answer:

0.5 moles

For 250 ml it is 0.5 moles.

Explanation:

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Answer on both of them please
aliya0001 [1]
1. Intensive.

2. Physical. 

Hope this helps. :)
3 0
3 years ago
The density of a rock that was a mass of 454 grams and a volume of 100 cm3
puteri [66]

Answer:

The answer is

<h2>4.54 g/cm³</h2>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume}  \\

From the question

mass of rock = 454 g

volume = 100 cm³

The density of the rock is

density =  \frac{454}{100}  =  \frac{227}{50}  \\

We have the final answer as

<h3>4.54 g/cm³</h3>

Hope this helps you

3 0
3 years ago
match the number of negative charges to the number of positive charges to make each combination balanced (see image for answer)
BartSMP [9]

Answer : The correct match is:

1 positive charge = 1 negative charge

2 positive charges = 2 negative charges

3 positive charges = 3 negative charges

Explanation :

As we now that there are three subatomic particles which are protons, electrons and neutrons.

The protons and neutrons are located inside the nucleus and electrons are located around the nucleus.

The protons are positively charged, the electrons are negatively charged and neutrons are neutral.

As we know that all the things are made up of charges and opposite charges attract to each other.

In a neutral atom, the positive charges and negative charges are balanced in an object. That means, in neutral atom the number of positive charges are equal to the negative charges.

So we can say that:

1 positive charge = 1 negative charge

2 positive charges = 2 negative charges

3 positive charges = 3 negative charges

5 0
4 years ago
According to recent research ice skaters are able to glide smoothly across the ice because
Anna11 [10]
Ice is constantly subliming to form a layer of water vapor
6 0
4 years ago
Which three elements affect air pressure?
Sloan [31]
A sorry if it’s wrong good luck
8 0
3 years ago
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