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3 years ago

What is the relationship between mass, distance and gravity?

Chemistry

1 answer:

romanna [79]3 years ago

6 0

Answer:

Mass is the measure of the amount of matter in an object. We see that the gravitational force between objects increases as the masses of the objects increase. With distance, we see that the strength of gravity decreases if the distance between two objects increases.

Explanation:

The amount of gravity affecting an object depends on two things: the masses of the objects being attracted and the distance between the objects. Mass is the measure of the amount of matter in an object. ... With distance, we see that the strength of gravity decreases if the distance between two objects increases

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Sometimes genes, for no known reason(s), change their form in a process called spontaneous malformation spontaneous acceleration

padilas [110]

The answer is spontaneous mutation .

Sometimes genes, for no known reason(s), change their form in a process called spontaneous mutation.

Mutation is the actually the alteration of the nucleotide sequence of the genome of an organism, virus, or other genetic elements permanently.

Spontaneous mutation : It is a process in which gene automatically for no reason change their form.

3 0

4 years ago

Use the electron-transfer method to balance this equation:

Klio2033 [76]

Answer:

The answer to your question is the letter d.

Explanation:

Data

Zn + HCl ⇒ ZnCl₂ + H₂

- Calculate the Oxidation number of reactants and products

Zn⁰ + H⁺¹Cl⁻¹ ⇒ Zn⁺²Cl₂⁻¹ + H₂⁰

- Determine which elements changed their oxidation numbers

Zn⁰ ⇒ Zn⁺² Zn lost 2e⁻

2H⁺¹ ⇒ H₂⁰ H won 2 e⁻

-Interchange the electrons lost and won

2( Zn⁰ ⇒ Zn⁺²)

2(2H⁺¹ ⇒ H₂⁰)

-Simplify

2Zn⁰ ⇒ 2Zn⁺²

4H⁺¹ ⇒ 2H₂⁰

-Substitute the coefficient in the equation

2Zn + 4HCl ⇒ 2ZnCl₂ + 2H₂

Reactant Element Product

2 Zn 2

4 H 4

4 Cl 4

- Now the reaction is balanced

6 0

3 years ago

I need help with a chemistry question

mafiozo [28]

What's the question?

8 0

3 years ago

Consider the balanced equation below.

Alex787 [66]

the balanced equation is as follows

2H₂S + 3O₂ --> 2SO₂ + 2H₂O

molar ratio also known as stoichiometry is the ratio in which the reactants and products are either formed or reacted in the given equation

molar ratio can be determined by the coefficients of the compounds in the balanced reaction

coefficient is the number in front of the chemical compound

coefficients for the compounds in this reaction are as follows

H₂S - 2

O₂ - 3

SO₂ - 2

H₂O - 2

therefore correct option is

H₂S:SO₂ = 2:2 and O₂:H₂O = 3:2

7 0

3 years ago

Read 2 more answers

Assume at exactly 100.0°c and 1.00 atm total pressure, 1.00 mole of liquid water and 1.00 mole of water vapor occupy 18.80 ml an

Grace [21]

Answer 1) : When we calculate the ΔQ = -40.66 kJ (heat of vaporisation).

Then, we can relate the work done with this equation,

ΔW = -PΔV

First we need to calculate the volume, which will be,

Volume of water vapor = (nRT) / (P)

Then, V = (1 mole) X (0.0821 L X atm/mole X K) X (373.15K) / (1atm) = 30.6 liters So, it is given, and verified.

Volume of Water can be used for finding the; Density = M / V

D = ( 1 mole) X (18.02 g/mole) / (18.80 mL) = 0.9585 g/mL

On, substituting the values, we get,

ΔW = -PΔV

Work = - (1 atm) X (0.00188L - 30.62L) X 0.1013kJ/L X atm = 3.10 kJ

hence the work done is 3.10 kJ

Answer 2) Now, for calculating the internal energy, we can use the formula as,

ΔE = ΔQ + ΔW

Here, we have the values of ΔQ = -40.66 kJ and ΔW as = 3.10 kJ

So, we get, ΔE = (-40.66) + (3.10) = - 37.55 kJ

Therefore, the change in the internal energy will be -37.55 kJ.

3 0

3 years ago