Which is the name of C5H12?n-heptane
n-butane
All of these
n-pentane
n-hexane

Answers

Answer 1

Answer: pentane is the correct answer the prefix pent means 5 so 5 hydrogens

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State the characteristics of transition metals

Answers

Answer:

Conductivity, Malleability, High Melting Point, Luster

Explanation:

Transition metals have the following properties:

Conductivity (Electrical and Thermal)

Malleability (You can hit it with a hammer to mold it)

High melting point

Luster (Shininess)

Two chemical properties associated with Bromine

Answers

2 Chemical properties of Bromine (Br):

Melting point: -7.2 degrees Celsius

Boiling Point: 58.8 degrees Celsius

Melting point and Boiling Point

I have added 12.0 L of air.To a balloon at sea level(760 torr). If I take the ballon with me to Colorado, where the air pressure is 0.650 atm, what will the new volume of the balloon be?

Answers

Answer:

18.46 L

Explanation:

From the question given above, the following data were obtained:

Initial volume (V1) = 12.0 L

Initial pressure (P1) = 760 torr

Final pressure (P2) = 0.650 atm

Final volume (V2) =..?

Next, we shall express the pressure in the same unit of measurement.

Thus, 760 torr is equivalent to 1 atm.

Finally, we shall the new volume of the balloon as follow:

Initial volume (V1) = 12.0 L

Initial pressure (P1) = 1 atm

Final pressure (P2) = 0.650 atm

Final volume (V2) =..?

P1V1 = P2V2

1 × 12 = 0.650 × V2

12 = 0.650 × V2

Divide both side by 0.65

V2 = 12/0.65

V2 = 18.46 L

Therefore, the new volume of the balloon is 18.46 L.

Why check dams can increase the groundwaater level in a region

Answers

Check dams shouldn't be more than 2-3 feet high. The center of it should be at least six inches lower than the edges. They might kill grass linings in channels if water stays high or sediment load is great. That criteria induces a weir effect, which makes water surface levels go upstream for some, if not all flow conditions.
Hope this helps! :)

Which molecule is a source of energy, a store of energy, and can mix with water?

Answers

Answer:

Glucose

Explanation:

Glucose is a source of energy and it is stored in the body (in the form of glycogen) and it can also dissolve in water.

The average atomic mass of oxygen is 15.9994 amu. The atomic masses of its three isotopes are as follows: O-16: 15.995 amu; O-17: 16.999 amu; O-18: 17.999 amu Which isotope is most likely to have the greatest abundance in nature?

Answers

The average atomic mass of an atom would be the closest to the mass of its most commonly found isotope, because if another isotope would be more common, the average would "shift" to be closer to the most common isotope.

So the answer is O-16: its mass is almost the same as the average atomic mass.

Answer:

0-16

Explanation:

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