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3 years ago

What is a solute?

Chemistry

1 answer:

LUCKY_DIMON [66]3 years ago

7 0

Answer:

The substance that dissolves

Explanation:

Solute is the substance that disappears into a liquid. For example,when salt dissolves in water,the salt is the solute because it is the substance that saluted.

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Which of the following has six electrons in its valence shell?

Sergeu [11.5K]

Simple...

moving along the periodic table ---->>>

Oxygen has 6.

Nitrogen has 5.

Sodium has 1.

Neon has 8.

Thus, your answer, Oxygen.

6 0

3 years ago

Read 2 more answers

How many moles are present in 63.80L of oxygen gas, O2?

matrenka [14]

Answer:

2.85moles of oxygen gas

Explanation:

Given parameters:

Volume of oxygen gas = 63.8L

Unknown:

Number of moles = ?

Solution:

We assume that the gas is under standard temperature and pressure. To find the number of moles, use the expression below:

1 mole of a gas at STP occupies a volume of 22.4L

So;

63.8L of oxygen gas will take up a volume of

$\frac{63.8}{22.4}$ = 2.85moles of oxygen gas

4 0

3 years ago

Name a property of liquids that they do not share with solids.

neonofarm [45]

They flow and can take the shape of their container

5 0

3 years ago

Read 2 more answers

0.7 L of H2 enters a reaction at standard temperature and pressure.

ASHA 777 [7]

Answer:

1.88 × 10²³ particles

Explanation:

Given data:

Volume of H₂ = 0.7 L

Number of particles at STP = ?

Solution:

First of all we will calculate the number of moles of H₂.

PV = nRT

n = PV / RT

n = 1 atm . 7 L / 0.0821 L. atm. mol⁻¹. k⁻¹ × 273.15 K

n = 7 atm. L / 22.43 L. atm. mol⁻¹

n = 0.312 mol

it is known that,

2 g H₂ = 1 mol = 6.022 × 10²³ particles

For 0.312 mol

0.312 × 6.022 × 10²³ particles

1.88 × 10²³ particles

6 0

3 years ago

If an object moves in uniform circular motion in a circle of radius R=2.00 meters, and the object takes 5.00 seconds to

Minchanka [31]

Answer:

The centripetal acceleration of the object is $315.5\ m/s^2$ .

Explanation:

We have,

Radius of a circular path is 2 m

It takes 5 seconds to complete 10 revolutions. It means its angular velocity is :

$\omega=\dfrac{\Delta \theta}{\Delta t}\\\\\omega=\dfrac{2\pi \times 10}{5}\\\\\omega=12.56\ rad/s$

The centripetal acceleration of the object is given by :

$a=\omega^2 r\\\\a=(12.56)^2 \times 2\\\\a=315.5\ m/s^2$

So, the centripetal acceleration of the object is $315.5\ m/s^2$ .

5 0

3 years ago