CHEMISTRY HIGH SCHOOL

Ethene is the first member of the a. Alkane series
b. Alkyne series
c. Saturated hydrocarbons
d. Unsaturated hydrocarbons
e. Aromatic hydrocarbons

Answers

Answer 1
Answer: It will be:

b. Alkyne* series

* You have done a spelling mistake here. It will be "Alkene" not  "Alkyne".

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Zero on a pH scale is very _____, and 14 on a pH scale is very _____. A. acidic; basicB. basic; acidic

Answers

Zero on a pH scale is very A. acidic, and 14 on a pH scale is very basic. 
The lower the number on the scale, the more acidic it is. 

Zero on a pH scale is very

A. acidic, and 14 on a pH scale is very basic.

The lower the number on the scale, the more acidic it is.

Explanation:

Acidic and basic are two limits that describe a chemical property chemical. Mixing acids and bases can cancel out or compensate for their greatest effects. A substance that is not acidic nor basic is neutral. The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. Explications with a pH smaller than 7 are acidic and solutions with a pH higher than 7 are basic.

There are more hydroxide ions in a solution than hydrogen ions. The solution is acidic

basic

neutral

a salt

Answers

The hydroxide ion concentration is what is used to measure the POH of a substance (basicity) thus with more hydroxide that hydrogen ions, the solution is Basic. 

What two-step process separated the cans into aluminum, steel, and tin?

Answers

Answer:

Magnet

Durability and heaviness.(texture)

Explanation:

Magnet can be use to separate Aluminum from mixture of steel and aluminum.

Though aluminum and steel look alike but magnet can be use to separate it.

If the can attract the magnet or magnet stick to the can, it is a steel can. Aluminum does not stick to magnet.

A mixture of Aluminum and tin can also be separated by magnet.

Tin attract magnet but tin is more durable, heavy and does not corrode easily.

When u touch the three cans, tin is heavy and durable.

When farmers irrigate their crops, as much as 60 to 70 percent of the water _____. is ruined by pests, such as rabbits that are around the crops never reaches the crop is taken up by the plant is already contaminated by lead pipes

Answers

Answer:

Option (2)

Explanation:

The water in most of the region is generally pumped out of the ground for the purpose of irrigation. This rate of pumping is much higher than the rate of replenishment. The over-pumping of water leads to the lowering of the water table

About 60 to 70% of the water that is used for irrigation purposes does not reach the crop. It is because the water most of the time gets percolated down into the deeper zones. In addition to this, the water also leaks through the fractures that are associated with the canals and increasing rate of evaporation.

Thus, the correct answer is option (2).

Answer:b never reaches the crop hopefully helps

Explanation:

Which of the following elements has the largest electronegativity?Fluorine (F)
Bromine (Br)
Lithium (LI)
Calcium (Ca)

Answers

Answer:

FLUORINE

Explanation:

It has 5 electrons In Its 2P shell!

Answer:

Fluorine

Explanation:

because it has a score of 4.0 which is the highest possible

If the atomic weight of nitrogen is 14.01, what is the mass of the nitrogen atoms in one mole of cadmium nitrate, Cd(NOÀ)

Answers

The answer is 28.02.

The chemical formula for cadmium nitrate is Cd(NO₃)₂.

There are in total 2 nitrogen atoms in Cd(NO₃)₂. If the atomic weight of nitrogen is 14.01, the mass of two nitrogen atoms in one mole of cadmium nitrate is 28.02:
2 · 14.01 = 28.02
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