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4 years ago

1. Please label the following compounds as

Chemistry

1 answer:

Wittaler [7]4 years ago

4 0

Answer:

A NaCl: ionic (Na is metal and Cl is not metal)

B. AIC13: ionic (Al is metal and Cl is not metal)

C. C2H3N: covalent (C, H and N are nonmetals)

D. C3H60: covalent (C and H are nonmetals)

E. BaCl2: ionic (Ba is metal and Cl is not metal)

F. CaCl2: ionic (Ca is metal and Cl is nonmetal)

Explanation:

In ionic bonds, they are formed when there is a difference in electronegativity, between metals and nonmetals. In the case of covalent bonds, one or more pairs of electrons are shared between nonmetal compounds.

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How would one convert 36 yd to centimeters (2.54 cm = 1 in)

ValentinkaMS [17]

I would go yards to feet, feet to inches, inches to centimeters. So 36 yards is 108 feet. There are 12 inches in a foot so 1,296 inches in 108 feet. Multiply that by 2.54 centimeters to get 3,291.84 centimeters in 36 yards.

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4 years ago

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F O R 50 P O I N T S !!!

nika2105 [10]

Answer:

You would put the 4 quantum numbers corresponding to the electrons being described above

Explanation:

Quantum numbers refer to electrons, so I'll assume you mean the electron number that would correspond with the atomic number of the element. Quantum numbers are basically like an address for electrons, giving us information about the location of an electron from most general to most specific.

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3 years ago

how much heat is required to raise the temperature of a 5.45-g sample of iron (specific heat = 0.450 j/g°c) from 25.0°c to 79.8°

Mamont248 [21]

Answer:

134.397 Joules

Explanation:

Using the formula:

E = C × m × Δθ (where E is Energy, C is specific heat capacity and Δθ is change in temperature)

So E = 0.45×5.45×(79.8-25)

So E = 134.397 Joules

5 0

3 years ago

What is the difference between a solid and a gas

dem82 [27]

Answer:

Gas is for example oxygen or the air we breath and liquid is water.

Explanation:

6 0

3 years ago

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What happens when two objects when they are brought closer together The mass of both objects decrease The mass of both objects i

Maurinko [17]

Answer:

The correct option is

The gravitational force between them increases

Explanation:

According to Newton's law of universal gravitation states that the force of attraction between two bodies is directly proportional to the product of the masses of the bodies and inversely proportional to the square of the distance of their centers from each other.

The formula for universal gravitation is given as follows;

$F_{1} = F_{2} =G \times \dfrac{m_{1} \times m_{2}}{r^{2}}$

Where;

F₁, and F₂ = The gravitational forces of attraction on each mass

G = The gravitational constant

m₁ = The mass of one body

m₂ = The mass of the body

r = The distance between the centers of the two bodies

Therefore, the gravitational force of attraction on each object is inversely proportional to the as the distance between the centers of the two bodies

When the distance between the centers of the two bodies decreases, the two objects are brought closer together, the gravitational force of attraction between them increases.

8 0

3 years ago