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3 years ago

7

Which information best determines the location of an element on the periodic table?

2 answers:

goldenfox [79]3 years ago

6 0

Answer:

C: properties

Explanation:

do I have give a reason :\

topjm [15]3 years ago

6 0

C. properties I agree

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3 0

3 years ago

Calculate the % composition of the unknown liquid using your most precise result. It is a mixture of ethanol (D[ETOH] = 0.7890 g

Rufina [12.5K]

% composition of ethanol = 34.51%

% composition of water = 65.49%

<h3>What is density?</h3>

A material's density is defined as its mass per unit volume.

Given data:

The density of ethanol = 0.7890 g/mL

The density of water = 0.9982 g/mL

The density of mixture = 0.926 g/mL

Let the % composition of ethanol = x

Let the % composition of water = 100-x

Now density of the mixture

$\frac{Mass}{Volume}$

$Mass = \frac{percent \;of \;ethanol \;X \;density \;of \;ethanol \;+ \\ \;percent \;of \;water X \;density \;of \;water}{100}$

$0.926 = \frac{x X 0.7890 g/mL \;+ (100-x) X 0.9982 g/mL}{100}$

$x= 34.51$ %

Hence,

% composition of ethanol = 34.51%

% composition of water = 65.49%

Learn more about the density here:

brainly.com/question/952755

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8 0

2 years ago

Need some help please

Marysya12 [62]

Number 3:
Chlorine, Sodium, Sulfate, Magnesium, and Calcium.
Number 4:
The salt Increases/Decreases the density.
Hope this helps you!
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5 0

3 years ago

What is the second hottest layer of the atmosphere?

kherson [118]

Well, I say the answer is Thermosphere! Hope I helped :)

7 0

4 years ago

What happens during covalent bonding?

Alika [10]

Answer:

The atoms share some of their outer electrons so that each atom has a stable noble gas arrangement.

Explanation:

7 0

3 years ago