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3 years ago

Asking high school students if the school day should be lengthened to improve

2 answers:

4 0

Too long or complicated because some students have things to do after school(work,clean,take care of sibilings,sleep)and complicated to figure out a new schedule

Alla [95]3 years ago

3 0

Answer:

it can be tooo. long or coplicated because nomatter how long u stay in school they give u homework and also a lot of people have jobs when would they be ableto work

Explanation:

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What is the solution to the problem expressed to the correct number of significant figures?

Harlamova29_29 [7]

Answer:

Answer: 1.69.

Explanation:

The solution = 12.0 / 7.11 = 1.687 = 1.69.2

5 0

3 years ago

An object has a mass of 18.4g and a volume of 11.2 ml what is the density

DENIUS [597]

Density=mass/volume

Density=18.4g/11.2ml

Density=1.64

Just make sure you include the unit of measurement with your answer.

4 0

4 years ago

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hat is the ultimate source of energy for the Earth? a. photosynthesis b. respiration c. the sun d. nutrient cycles

padilas [110]

The correct answer is C. The sun

6 0

3 years ago

Which of these neutralization reactions has a ph < 7 when equal molar amounts of acid and base are mixed. select one:

emmasim [6.3K]

The correct answer is B.
Strong acids completely dissociates to give hydrogen ions . Weak bases can only partially dissociate to give hydroxide ions .
Therefore when equal amounts of acid and base are mixed, while Acid is completely dissociated and gives out hydrogen ions but base only gives out a fraction of hydroxide ions.
Therefore number of hydrogen ions in the solution will be higher than hydroxide ions, resulting in an acidic pH. Therefore pH <7

6 0

3 years ago

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Which describes the role of carbon dioxide in photosynthesis?

jeka57 [31]

Answer:

It is a reactant, so it enters the plant.

Explanation:

Hello,

Photosynthesis is the natural process occurring when plants produce sugar and oxygen by using the visible light as the catalyst to undergo the following chemical reaction:

$6CO_2+6H_2O-->C_6H_{12}O_6+6O_2$

In such a way, it is seen that the carbon dioxide has the role of reactant as it is used by the plant, that is, it enters the plant to allow the photosynthesis to be carried out.

Best regards.

6 0

3 years ago

Read 2 more answers