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3 years ago

In the reaction A+B → C + D, what are the reactants?

Chemistry

1 answer:

Inga [223]3 years ago

6 0

Answer:

A. A and B

Explanation:

The reactants in this reaction is A and B;

Reaction:

A + B → C + D

In a chemical reaction, the left hand side is made up of the reactants.

On the right hand side, we have the products

For the example given;

A and B are the reactants

C and D are the products

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What is the main precaution to take if a gas cylinder sign is present in the lab? select one

Step2247 [10]

The main precautions to take if a gas cylinder sign is present in the lab visually check that the gas cylinder is restrained, but keep a safe distance from it. The correct option is c.

<h3>What are the precautions?</h3>

Precautions are the preventive steps that are taken to save yourself from any dangerous circumstances. These steps are always taken in doing experiments and other scientific procedures.

Here, the precautions are to check the gas cylinder.

Thus, the correct option is c, Visually check that the gas cylinder is restrained, but keep a safe distance from it.

To learn more about precautions, refer to the link:

brainly.com/question/15622844

#SPJ4

The question is incomplete. Your most probably complete question is given below:

Remove the strap from around the gas cylinder to use it in the lab.

Open the valve on the gas cylinder periodically to release pressure.

Visually check that the gas cylinder is restrained, but keep a safe distance from it.

Test out the regulator on the gas cylinder to make sure it is working properly.

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2 years ago

Which process lets convection plays a role in the water cycle?

Sergio039 [100]

The best and most correct answer among the choices provided by your question is the third choice or letter C.

Convection is heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection plays a role in the water cycle when "<span> gases cycle up and down based on air pressure."

I hope my answer has come to your help. Thank you for posting your question here in Brainly.
</span>

5 0

3 years ago

a 9.84 ounces ingot of unknown metal is heated from 73.2 degrees fahrenheit - 191.2 degrees fahrenheit this requires 3.912 calor

Gekata [30.6K]

The SI unit of specific heat is J per gram per degree Celsius. Thus it follows that specific heat could be calculated in this way:

Specific Heat = Energy / (mass x change in temperature)

Thus,

Specific Heat = 3.912 cal / (9.84 oz x (191.2 ˚F – 73.2 ˚F))

Specific Heat = 3.369 x 10^-3 cal/oz-˚F

6 0

4 years ago

Which of the following describes a homogeneous mixture?

frutty [35]

The Answer is C
<span> It can be separated by physical means and is uniform in composition.</span>

4 0

3 years ago

Read 2 more answers

An essential utensil for various tasks from cleaning vegatables to training pasta ir tin contents

zavuch27 [327]

Correct question: A tool used for vegetable strainer,it is essential for various tasks from cleaning vegetables to straining pasta or tin contents.

Answer: The tool is called COLANDER.

Explanation:

In the kitchen, there are different types of equipments and utensils which makes work easier and faster. Examples of such equipment/ utensils includes:

--> graters,

--> cutleries ( spoon, fork, knife)

--> colanders

--> Pots

--> Blenders

These utensils are made up of rubber, plastics, wood, ceramics and stainless steel.

A Colander is an important kitchen utensil, a type of strainer with perforated holes. The holes allows fluid to drain leaving behind the solid part. It is usually bowl - shaped. It helps in performing the following roles in the kitchen:

--> cleaning vegetables

--> straining of pasta

--> straining of tin contents

Colanders are usually made of stainless steel, plastics and ceramics.

4 0

3 years ago