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Svetach [21]
3 years ago
10

An unknown substance is made only of identical atoms that cannot be broken down. this substance is a ________.mixtureelementcomp

ound
Chemistry
1 answer:
Ira Lisetskai [31]3 years ago
6 0
The substance is a element.
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*WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*
Lilit [14]

Answer:

D. C > B >A

Hope it helps!

Explanation:

From strongest to weakest, the intermolecular forces rank in the following way:

Strongest: Hydrogen bonding. This occurs when compounds contain #"O"-"H"# , #"N"-"H"# , or #"F"-"H"# bonds. ...

Less strong: Dipole-dipole forces. ...

Weakest: London Dispersion Forces.

5 0
3 years ago
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How many quarters are in $500
Alexandra [31]

Answer:

\boxed{2000}

Explanation:

\text{4 quarters = \$1}\\\\\text{No. of quarters} = \text{\$500} \times \dfrac{\text{4 quarters}}{\text{\$1}} = \boxed{\textbf{2000 quarters}}

8 0
3 years ago
What happens when atoms share electrons?
Anika [276]
When an atom shares electrons they form a covalent bond. 
4 0
2 years ago
The reaction between nitric oxide and oxygen is described by the following chemical equation: Suppose a two-step mechanism is pr
muminat

Answer:

2NO(g) + O2(g) ---> 2NO2(g)

Explanation:

The mechanism for this reaction involves two elementary reactions in which both are bimolecular as shown below;

NO(g) +O2(g) ----> NO2(g) + O(g)

NO(g) + O(g) ----> NO2(g)

Hence overall balanced reaction equation;

2NO(g) + O2(g) ---> 2NO2(g)

7 0
3 years ago
Bromine has a density of 3.10g/cm3. If you have 50.0 ML of bromine, how many grams do you have?
Zanzabum

Answer:

The answer is

<h2>155 g</h2>

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

<h3>mass = Density × volume</h3>

From the question

volume of bromine = 50 mL

density = 3.10 g/cm³

It's mass is

mass = 50 × 3.10

We have the final answer as

<h3>155 g</h3>

Hope this<u> </u>helps you

5 0
3 years ago
Read 2 more answers
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