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3 years ago

5

An atom is the most __________ unit of living and nonliving things. (Help I will mark brainliest if ya help, and the first one t

o help)
A) basic

B) complex

C) interesting

D) sizeable

2 answers:

ziro4ka [17]3 years ago

6 0

The correct answer to your question is

Basic. it is the is the basic unit of non living things.

Hope this helps!

jonny [76]3 years ago

6 0

B. It is the most complex.

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What is the volume of gas at a temperature of 200.0 K if its original volume was

Bumek [7]

Answer:

200.0 K

Explanation:

temperature 400.9 K

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2 years ago

Arrange these molecules in order of decreasing mass: C6H14 , NO2 , Fe2O3 , and CaCO

babunello [35]

The following is the arrangement of the given molecules in decreasing order of mass: $\text{ Fe2O3} > \text{C6H14} > \text{CaCO} > \text{NO2}$

<u>Solution:</u>

First inorder to arrange the elements in descending order of their mass we have to calculate the molecular mass of each element. The calculation is as follows:

<u>Mass of C6H14:</u>

$C\rightarrow6\times12.01 = 72.06$

$H\rightarrow14\times1.008 = 14.112$

<em>Mass of C6H14 is 86.172</em>

<u>Mass of NO2:</u>

$N\rightarrow1\times14.0067 = 14.0067$

$O\rightarrow2\times15.9994 = 31.9988$

<em>Mass of NO2 is 46.0055</em>

<u>Mass of Fe2O3:</u>

$Fe\rightarrow2\times55.845 = 111.69$

$O\rightarrow3\times15.9994 = 47.9982$

<em>Mass of Fe2O3 is 159.6882</em>

<u>Mass of CaCO:</u>

$Ca\rightarrow1\times40.078 = 40.078$

$C\rightarrow1\times12.01 = 12.01$

$O\rightarrow1\times15.9994 = 15.9994$

<em>Mass of CaCO will be 68.0874</em>

So, the order will be $159.6882>86.172>68.0874>46.0055$ which is $\text{ Fe2O3} > \text{C6H14} > \text{CaCO} > \text{NO2}$

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3 years ago

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Answer:

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3 years ago

If you are calculating the grams to mL ratio, you are trying to find the object’s…

Alex

Answer:

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Explanation:

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Density = mass/volume

$\text{Density}=\dfrac{\text{grams}}{\text{mL}}\\\\=\text{grams/mL}$

If you are calculating the grams to mL ratio, it means that we are trying to find the object's density.

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3 years ago