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2 years ago

I just want to know the answer

Chemistry

2 answers:

garri49 [273]2 years ago

5 0

Explanation:

mixture............

suree

damaskus [11]2 years ago

3 0

Answer: I believe the answer is C a mixture

Explanation:

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1. What is the Charlotte?<br> A. A train<br> B. A car<br> D. An airplane<br> C. A ship

dybincka [34]

Answer:

B is the Charlotte

Explanation:

it is Charlotte because it has 4 wheels

4 0

2 years ago

Notice that "SO4" appears in two different places in this chemical equation. SO42− is a polyatomic ion called "sulfate." What nu

vichka [17]

Answer:

Explanation:

Hello,

In this case, it is convenient to write the chemical reaction as:

$CaSO_4+AlCl_3\rightarrow CaCl_2+Al_2(SO_4)_3$

Which balanced turns out:

$3CaSO_4+2AlCl_3\rightarrow 3CaCl_2+Al_2(SO_4)_3$

Thus the number that should be in front of the calcium sulfate is 3 in order to balance the reaction.

Best regards.

8 0

3 years ago

C time

lesya692 [45]

Answer:

B. Spring balance - a device used for measuring the weight or force of gravity acting on an object.

Explanation:

A Force is any interaction that changes the motion or position of an obkpjectbthatbit is interacting with. Whenever there is an interaction between two objects, there is a force exerted by each of the objects on one themselves.

Forces are generally divided into contact forces and non-contact over field forces.

In contact forces, the two objects physically in contact with each other. Examples of contact forces are push or pull forces, frictional forces, tensional forces, spring forces, etc.

Non-contact forces are forces in which the two objects interacting do no need to be physically in contact with one another. Examples include, gravitational forces, magnetic forces, electrical forces, etc.

Instruments used in measuring forces are known as force gauges.

From the instruments listed above:

A. A ruler is an instrument used in measuring length

B. Spring balance is a device used for measuring the weight or force of gravity acting on an object.

C. A thermometer is an instrument used in measuring temperature

D. A windbvane is an instrument used in measuring wind direction.

4 0

3 years ago

A six-carbon organic compound containing oxygen is suspected of being either a secondary alcohol or a ketone. which chemical or

White raven [17]

Following are the possible isomers of secondary alcohol and ketones for six carbon molecules. In order to distinguish between sec. alcohol and ketone we can simply treat the unknown compound with acidified Potassium Dichromate (VI) in the presence of acid. If with treatment with unknown compound the colour of K2Cr2O7 (potassium dichromate VI) changes from orange to green then it is confirmed that the unknown compound is sec. alcohol, or if no change in colour is detected then ketone is confirmed. This is because ketone can not be further oxidized while, sec. alcohol can be oxidized to ketones as shown below,