Pure substances that have properties entirely different from the atoms that make it up are _____.

2 answers:

galina1969 [7]3 years ago

4 0

<span>Pure substances that have properties entirely different from the atoms that make it up are called compounds. All compounds are made up of molecules, but not all the molecules are compounds. Compounds are composed of more than one mixture of atoms. An example of this is Hydrogen Gas, it is a molecule but it is not a compound because it is only made of only one element. But when Hydrogen is mixed with Oxygen, it forms water, which is now a compound because of the mixture of two hydrogen and one oxygen atoms. </span>

hichkok12 [17]3 years ago

3 0

Answer:

compounds

Explanation:

You might be interested in

Calculate the number of molecules in a deep breath of air whose volume is 2.15 L at body temperature, 37 ∘C, and a pressure of 7

Zinaida [17]

PV = nRT
R = 0.0821 L * atm / mol * K
(ideal gas constant)

First, convert 735 torr to atm. Divide by 760.
(1 atm = 760 torr)

735 torr * 1 atm / 760 torr = 0.967 atm
Then, convert 37 C to Kelvin. Just add 273.
37 C = 310K

n = PV / RT
= (0.967)(2.07) / (0.0821)(310)
= 0.0786 mol

<span>0.0786 mol * 6.02 * 10^23 molecules / 1 mol = 4.73 * 10^22 molecules </span>

7 0

3 years ago

Read 2 more answers

What is the name of the monomer that polymerizes to form polymethylmethacrylate

Cloud [144]

Answer:

polymethylmethacrylate bone cement is a polymer formed by mixing highly volatile liquid methylmethacrylate (MMA) monomer with an accelerator, polymethylmethacrylate powder. This bone cement is used during orthopedic surgery to implant prostheses for joint replacement

Explanation:

it was so easy thanks for the work form my brain

7 0

3 years ago

By titration, it is found that 28.5 mL of 0.183 M NaOH(aq) is needed to neutralize 25.0 mL of HCl(aq). Calculate the

maksim [4K]

Answer:

0.209M

Explanation:

M1V1=M2V2

(28.5 mL)(0.183M)=(25.0mL)(M)

M2= 0.209M

*Text me at 561-400-5105 for private tutoring if interested: I can do homework, labs, and other assignments :)

4 0

3 years ago

What do the elements within a "period" have in common? (pick one)

Gnesinka [82]

Answer:

All of the elements in a period have the same number of atomic orbitals. For example, every element in the top row (the first period) has one orbital for its electrons. All of the elements in the second row (the second period) have two orbitals for their electrons.

Explanation:

6 0

3 years ago

Read 2 more answers

Which is the term for how vegetation influences precipitation?

Scilla [17]

The answer to this question is A- evaporation

3 0

3 years ago