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4 years ago

Christy is a forensic scientist. She is given

Chemistry

1 answer:

Nitella [24]4 years ago

6 0

Answer:

The white powder is not sugar, so Christy's hypothesis is incorrect . Christy's next step should be to identify substances that have the measured molecular mass.

Explanation:

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An organic synthesis to make the pain reliever acetaminophen is supposed to produce 280 kg of product but instead produces 70 kg

Irina-Kira [14]

Answer: 75%

Explanation:

The following information can be gotten from the question:

Waste = 70kg

Theoretical yield = 280kg

Therefore, the actual yield will be the difference between the theoretical yield and the waste which will be:

= 280kg - 70kg = 210kg

The percent yield will now be:

= Actual yield / Theoretical yield × 100

= 210/280 × 100

= 3/4 × 100

= 75%

4 0

3 years ago

How many characteristics are used to describe living things

sineoko [7]

Living things have many characteristics for example we are made up of cells, we use energy and we reproduce

4 0

3 years ago

Read 2 more answers

How many Oxygen Atoms & Lithium Atoms Are in 4Li2O?<br> Please Help!

Advocard [28]

Answer:

8 lithium atoms and 4 oxygen atoms

3 0

3 years ago

Was the Soviet Union's use of the Aral Sea

Ivan

Answer:

Yes it was

Explanation:

It was broken because they did not know what they were doing

4 0

3 years ago

Nitric acid is often manufactured from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming of natural

ikadub [295]

Answer: $N_2(g)+3H_2(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)$

Explanation:

According to the law of conservation of mass, mass can neither be created nor be destroyed. Thus the mass of products has to be equal to the mass of reactants. The number of atoms of each element has to be same on reactant and product side. Thus chemical equations are balanced.

The balanced chemical reaction for nitrogen and hydrogen react to form ammonia:

$N_2(g)+3H_2(g)\rightarrow 2NH_3(g)$ (1)

The balanced chemical reaction for ammonia and oxygen react to form nitric acid and water:

$NH_3(g)+2O_2(g)\rightarrow HNO_3(g)+H_2O(g)$ $\times 2$

$2NH_3(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)$ (2)

The net chemical equation for the production of nitric acid from nitrogen, hydrogen and oxygen by adding 1 and 2

$N_2(g)+3H_2(g)+4O_2(g)\rightarrow 2HNO_3(g)+2H_2O(g)$

5 0

3 years ago