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ivann1987 [24]
4 years ago
15

What is the difference between a mixture and a pure substance? Give an example of each.

Physics
1 answer:
suter [353]4 years ago
5 0

Answer:

A pure substance (an element or a compound) is made up of only one type of atom, or molecule.

Examples: water (H2O molecules), oxygen (O2 molecules), argon (Ar atoms).

A mixture is made of up of more than one type of atom or molecule.

Examples: salt water (H2O molecules, Na+ ions, Cl- ions),

air (N2 molecules, O2 molecules, Ar atoms, CO2 molecules)

Note: the composition of a pure substance is fixed, but the composition of a mixture can vary. Two salt water solutions might not have the same concentration of salt. Or, if you prefer, one blueberry muffin might have more blueberries in it than another blueberry muffin.

make me brainlist if u think its helpful

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similar to the case in the experiment you use two rubber bands, side to side first, to hold a weight of 3 reference objects. the
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Three units deformations observed in these bands.

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2 years ago
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3 0
4 years ago
Atoms that have become negatively charged by gaining extra electrons are called _____. anions anodes cations cathodes
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5 0
3 years ago
Read 2 more answers
The weight of a block on the inclined plane is 500 N and the angle of incline is 30 degrees. What is the magnitude of the force
yanalaym [24]

Answer:

250 N

433 N

Explanation:

N = Normal force by the surface of the inclined plane

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f = static frictional force acting on the block

Parallel to incline, force equation is given as

f = W Sin30

f = (500) Sin30

f = 250 N

Perpendicular to incline force equation is given  

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N = 433 N

3 0
3 years ago
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