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3 years ago

What would happen if there were not enough plants on earth

Chemistry

2 answers:

Sati [7]3 years ago

7 0

Then we would not have oxygen because plants give oxygen in order to breathe

noname [10]3 years ago

4 0

If there was not enough plants on Earth, you would not be able to stay alive because plants give you oxygen, and if there was not enough plants you would not have any oxygen so you would die.

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Which is a physical property of matter?

IrinaK [193]

Answer:

Explanation:

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2 years ago

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A 46.2 mL,0.568 M calcium nitrate solution is mixed with 80.5mL of 1.396M calcium nitrate solution.Calculate tge concentration o

Ne4ueva [31]

Answer:

1.09 M

Explanation:

Let's define the equation that will be used to calculate the final concentration of the resultant calcium nitrate solution. In order to calculate it, we need to find the total number of moles of calcium nitrate and divide by the total volume of the resultant solution:

$c=\frac{n}{V}$

This equation firstly helps us find the number of moles of calcium nitrate. Multiplying molarity by volume will yield the moles. Adding the moles from the first component to the second component will provide us with the total number of moles of calcium nitrate:

$n_{Ca(NO_3)_2}=46.2 mL\cdot0.568 M+80.5 mL\cdot1.396 M=138.62 mmol$

Now, the total volume of this solution can be found by adding the volume values of each component:

$V_total=46.2 mL+80.5 mL=126.7 mL$

Finally, dividing the moles found by the total volume will yield the final molarity:

$c_{final}=\frac{138.62 mmol}{126.7 mL}= 1.09 M$

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3 years ago

Yall i think if someone can solve ths problem would save my life. its really URGENT

andre [41]

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3 years ago

Which of the following measurements contains 2 significant figures?

Trava [24]

The answer would be 371 because it has multiple complete digits

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3 years ago

Why do covalent compounds tend to be squishy?

Sav [38]

Answer:

Since they're easy to separate, covalent compounds have low melting and boiling points. 2) Covalent compounds are soft and squishy (compared to ionic compounds, anyway). The reason for this is similar to the reason that covalent compounds have low melting and boiling points. When you hit an ionic compound with something, it feels very hard

Explanation:

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2 years ago