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Ksenya-84 [330]
3 years ago
9

1. Describe a combustion reaction BOTH in written and visual form.

Chemistry
1 answer:
kupik [55]3 years ago
5 0
On the reactants side, you'll always have some sort of compound of carbon and hydrogen and oxide, while the products will always be CO2 (carbon dioxide) and H2O (water)
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What kinds of things on earth are made of cells?
Lena [83]

Answer:

All living things, large or small, plant or animal, are made up of cells. Most living things are made up of one cell and they are called unicellular organisms. Many other living things are made up of a large number of cells that form a larger plant or animal. These living things are known as multicellular organisms.

Explanation:

7 0
4 years ago
I NEED HELP PLEASE, THANKS!
ira [324]

Answer:

About 0.652

Explanation:

Because the reaction is balanced, we can go straight to the next step. The molar mass of potassium is about 39.098, while the molar mass of hydrogen gas is 2 and the molar mass of water is 18. Therefore, 25.5g of potassium would be about 0.652 moles, and 220 grams of water would be about 12.222 moles, making potassium the limiting reactant. Since there is a single unit of each compound on both sides of the equation, there would be an equal amount of moles of potassium and hydrogen, and therefore about 0.652 moles of hydrogen gas would be produced. Hope this helps!

6 0
3 years ago
A group of scientists must complete a study, but they have
Mashutka [201]

<u>The </u><u>scientific community </u><u>may act somewhat on restricted government </u><u>financing</u><u> circumstances throughout two ways:</u>

  • Source for further money.
  • Adjust this same scale and complexity of the investigation.

<u>Source for further money:</u>

  • A researcher anyone who has restricted equipment and materials to finish an investigation might cooperate with certain other scientists as well as establish networking to exchange resources, thoughts, and behaviors for the survey's completion.

<u>Adjust this same scale and complexity of the investigation:</u>

  • To decrease costs, the researchers might measure the study up by decreasing the levels initially intended for the investigation.

Learn more:

brainly.com/question/5960697

3 0
3 years ago
Why are complex carbohydrates, such as starches, considered long-term energy sources? A. The human body can break down complex c
PilotLPTM [1.2K]

Answer:

A. The human body can break down complex carbohydrates into sugar molecules that provide energy.

Explanation:

Strings of glucose, form complex carbohydrates such as starch and glycogen. Glycogen which is a stored form of glucose in humans is a source of long-term energy, and a complex carbohydrate because glycogen can be converted to glucose-1-phosphate which can enter the glycolytic cycle to generate Adenosine triphosphate which is a unit of energy.

This stored form of energy can be slowly broken down to release energy when needed by the body. During exercise, for instance, glycogen can slowly release ATP needed for energy.

8 0
3 years ago
The strong forces of attraction between the positive and negative regions of molecules are called
Marat540 [252]
They are called Dipole-dipole forces
5 0
3 years ago
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