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3 years ago

5

What does a strong nuclear force do in an atom? It repels electrons from other electrons. It repels protons from other protons.

It attracts protons and neutrons. It attracts protons and electrons

2 answers:

iragen [17]3 years ago

3 0

The Answer Is It Attracts Protons And Neutrons
Hope This Helps

Greeley [361]3 years ago

3 0

Answer:

attracts protons and neutrons

Explanation:

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Give three importance of PH in our daily life?

german

$\bold{ANSWER}$

▶To check the nature of food items.

▶To check the nature of soil .

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4 years ago

Read 2 more answers

Which of the follow describes what happpens to the kinetic energy of water when it changes from the solid state to a liquid stat

Anestetic [448]

Answer:

Kinetic energy increases.

Explanation:

In a solid, molecules do not have much room to move. They are very slow moving, which means that kinetic energy is low. In a liquid, molecules have more room to move. They are able to move faster than a solid, which means that kinetic energy is low.

From greatest to lowest kinetic energy:

gas, liquid, solid

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4 years ago

A 10.0 g sample of an unknown liquid is vaporized at 120.0°C and 5.0 atm. The volume of the vapour is found to be 568.0 mL. The

Naya [18.7K]

Answer:

C8H16

Explanation:

First thing to do here is to calculate the molar mass of the compound

Mathematically;

molar mass = mass/number of moles

we can calculate the number of moles using the ideal gas equation

Mathematically;

PV = nRT

n = PV/RT

where p is the pressure at 5 atm

V is the volume at 568 ml = 568/1000 = 0.568 L

R is the molar gas constant which is 0.0821

T is the temperature which is 120+ 273 = 393k

Inserting these values into the equation, we have

n = (5 * 0.568)/(0.0821 * 393)

n = 0.088 moles

So the molar mass = 10/0.088

= 114 g/mol

Now let’s go to the percentages

C = 84.2/12 = 7.016666666666667

H = 15.8/1 = 15.8

divide by the smallest

C = 7.016666666666667/7.016666666666667 = 1

H = 15.8/7.016666666666667 = 2 approximately

The empirical formula is CH2

So for the molecular formula, we have;

(12 + 2)n = 114

14n = 114

n = 114/14 = approximately 8

So the molecular formula of the liquid will be (CH2)n = C8H16

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3 years ago

A student carries out this chemical reaction in a beaker:

nydimaria [60]

Answer:The correct answer is option (C).

Explanation:

$Zn+CuCl_2\rightarrow Cu+ZnCl_2$

After the reaction between Zinc and copper(II) chloride, Zinc chloride and copper will be obtained as a product. This reaction occurs because zinc is more reactive than copper which displaces the copper from its aqueous solution.

The student will expect to find copper metal at bottom of the beaker with aqueous solution of zinc chloride.

Hence the correct answer is option (C).

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3 years ago

Describe the motion of particles of a gas according to kinetic energy

IrinaK [193]

The motion is constant, rapid, and random. The particles move in a straight line until colliding with another particle or an object. This results from the collisions of atoms and molecules in air with objects

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3 years ago