3 years ago

Which classification best describes oxygen gas? a element b compound c solution d heterogeneous mixture

Chemistry

1 answer:

NNADVOKAT [17]3 years ago

4 0

Answer:

oxygen is an element because it is a pure substance which cannot be split into simpler substances by chemical means

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The molecular weight of H 2 SO 4 is: 49.078 g/mole 98.086 g/mole 194.296 g/mole

romanna [79]

Answer:

the molecular weight of H2SO4 is 98.086g/mole

8 0

4 years ago

a baseball player hits a baseball with a bat.The mass of the ball is 0.25kg.The ball accelerates at 200m/s2

34kurt

Answer:

50N

Explanation:

Force (N) = mass (kg) × acceleration (m/s²)

0.25kg times 200m/s² = 50N

5 0

3 years ago

Predict how the surface of a sand dune would change if a river began flowing through the area over the course of 10,000 years. W

dedylja [7]

Answer:

the sand dune would become flattened and eventually turn into sedementary rock

8 0

3 years ago

A mixture of Ar, He, and O2 has a total pressure of 1,015 kPa. Argon exerts a partial pressure of 152 kPa and Helium exerts a pa

arsen [322]

This one is easy. It's just addition and subtraction. Add the partial pressure of Argon and the partial pressure of Helium:
152 kPa
+305 kPa
 457 kPa

Next, subtract the result from the total pressure:

1015 kPa
- 457 kPa
558 kPa

8 0

3 years ago

Both compounds A and B have molecular formula C6H14. Monochlorination of compound A results in the formation of two constitution

Katarina [22]

Answer:

The name of the two compounds will be:

A :2,2-dimethylbutane

B: 3-methylpentane

Explanation:

The compounds are the isomers of hexane as per the given molecular formula.

There is no unsaturation or no ring is present in the compound.

Constitutional isomers are the one which have different arrangement of chain.

The possible compounds are shown in the figure with the products of monochlorination of the two isomers.

Thus there are five possible isomers of hexane.

3 0

3 years ago