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3 years ago

Matter is made up of tiny particles that are too small to be seen with the naked eye. these tiny particles are known as _______.

Chemistry

2 answers:

VladimirAG [237]3 years ago

8 0

Matter is made up of particles too small to be seen with the naked eye called atoms

MArishka [77]3 years ago

4 0

Explanation:

Any substance which occupies some space and has some mass is known as matter.

Every matter is made up of tiny particles which are known as atoms. Any matter can either have same atoms or with different atoms.

Thus, we can conclude that matter is made up of tiny particles that are too small to be seen with the naked eye. These tiny particles are known as atoms.

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Type the correct answer in the box. Express your answer to three significant figures. This balanced equation shows the reaction

Ratling [72]

Answer:

514.5 g.

Explanation:

The balanced equation of the reaction is: 2NaOH + H₂SO₄ → Na₂SO₄ + 2H₂O.

It is clear that every 2.0 moles of NaOH react with 1.0 mole of H₂SO₄ to produce 1.0 mole of Na₂SO₄ and 2.0 moles of 2H₂O.

Since NaOH is in excess, so H₂SO₄ is the limiting reactant.

We need to calculate the no. of moles of 355.0 g of H₂SO₄:

n of H₂SO₄ = mass/molar mass = (355.0 g)/(98.0 g/mol) = 3.622 mol.

Using cross multiplication:

∵ 1.0 mol H₂SO₄ produces → 1.0 mol of Na₂SO₄.

∴ 3.622 mol H₂SO₄ produces → 3.662 mol of Na₂SO₄.

Now, we can get the theoretical mass of Na₂SO₄:

∴ mass of Na₂SO₄ = no. of moles x molar mass = (3.662 mol)(142.04 g/mol) = 514.5 g.

8 0

2 years ago

When sulfuric acid reacts with calcium hydroxide, calcium sulfate and water are produced. The balanced equation for this reactio

lisov135 [29]

Answer:

H₂SO₄ (aq) + Ca(OH)₂ (aq) → CaSO₄ (aq) + H₂O (l)

Explanation:

When sulfuric acid reacts with calcium hydroxide, calcium sulfate and water are produced. The balanced equation for this reaction is:

3 0

2 years ago

*Riddle!* *Riddle!!* *Riddle!!!*

otez555 [7]

Answer:

https://www.getriddles.com/science-riddles/

Explanation:

go to this link, you will find some answers

hope it helps!

5 0

2 years ago

I just need help this is hard

blondinia [14]

Answer:

you can do anything if you put your mind to it. Also, school is not everything in life there are amazinng things in life that you need school for. you got this.

7 0

2 years ago

My barometer is reading 1253 torr. What is the pressure in mmHg?

kobusy [5.1K]

Answer:

The pressure in mmHg is 1253 (option C)

Explanation:

Two quantities are directly proportional if when multiplying or dividing one of them by a number, the other is multiplied or divided by that number. In other words, the magnitudes are directly proportional when one magnitude increases and so does the other in the same proportion; or when one magnitude decreases and so does the other in the same proportion.

The rule of three or is a way of solving proportionality problems between three known values and an unknown value, which can be applied to directly proportional quantities as follows:

a ⇒ b

c ⇒ x

So $x=\frac{c*b}{a}$

where a, b and c are data and x is the unknown value to be calculated.

In this case, knowing that 1 Torr = 1 mmHg, the rule of three can be applied as follows: if 1 torr is equal to 1 mmHg, 1253 torr is equal to how many mmHg?

$pressure=\frac{1253 torr*1 mmHg}{1 torr}$

pressure= 1253 mmHg

<u><em>The pressure in mmHg is 1253 (option C)</em></u>

6 0

3 years ago