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4 years ago

When selecting small wares to use in the kitchen, a manager must be sure the small wares are durable, easy to clean, safe, and ?

Chemistry

1 answer:

Ilia_Sergeevich [38]4 years ago

8 0

Answer:

Non-reactors

Explanation:

Kitchen wares should preferably be non-reactors to prevent them from reactiong with food.

Reactions between food substances and wares lead to production of untested and unsecure reaction results.

The production of this predictably hazardous results may result to food poisoning thereby threatening human life.

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Carlos is making phosphorus trichloride using the equation below. He uses 15.5 g of phosphorus and collects 50.9 g of phosphorus

Oxana [17]

Answer : The mass of chlorine reacted with the phosphorus is, 53.25 grams.

Explanation :

First we have to calculate the moles of phosphorus.

$\text{Moles of phosphorus}=\frac{\text{Mass of phosphorus}}{\text{Molar mass of phosphorus}}$

$\text{Moles of phosphorus}=\frac{15.5g}{31g/mol}=0.5mol$

Now we have to calculate the moles of $Cl_2$

The balanced chemical reaction is:

$2P+3Cl_2\rightarrow 2PCl_3$

From the balanced chemical reaction, we conclude that

As, 2 moles of phosphorous react with 3 moles of $Cl_2$

So, 0.5 moles of phosphorous react with $\frac{3}{2}\times 0.5=0.75$ moles of $Cl_2$

Now we have to calculate the mass of $Cl_2$

$\text{Mass of }Cl_2=\text{Moles of }Cl_2\times \text{Molar mass of }Cl_2$

Molar mass of $Cl_2$ = 71 g/mol

$\text{Mass of }Cl_2=0.75mol\times 71g/mol=53.25g$

Therefore, the mass of chlorine reacted with the phosphorus is, 53.25 grams.

4 0

4 years ago

Read 2 more answers

Define the kinetic theory of matter (use these words “explains, energy, particles, increase, decrease.”

pashok25 [27]

Answer:

The kinetic theory of matter explains that all matter is made of particles which are constantly moving/have energy. The energy varies depending on the temperature of the matter, therefore determining if the matter is solid, liquid, or gas. When the energy of a particle is increased or decreased, a phase change can occur.

5 0

3 years ago

How many moles of Al2O3 will be produced if 1.35 moles of Fe are produced?

Sergeu [11.5K]

Answer:

0.675 mol

Explanation:

Step 1: Write the balanced equation

2 Al + Fe₂O₃ ⇒ 2 Fe + Al₂O₃

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of Fe to Al₂O₃ is 2:1.

Step 3: Calculate the moles of Al₂O₃ produced when 1.35 moles of Fe are produced

We will use the established molar ratio.

1.35 mol Fe × 1 mol Al₂O₃/2 mol Fe = 0.675 mol Al₂O₃

5 0

3 years ago

In a certain chemical reaction Compound A combines with Compound B to produce Compound C (and no other products). Measurements w

Karo-lina-s [1.5K]

Answer:

Theoretical yield of C = 7.9 g

Actual amount of C isolated = 5.0 g

Explanation:

Given that in the reaction, Compound A combines with Compound B t o produce Compound C and no other products, the reaction is a combination reaction. The equation of the reaction is given below:

A + B ---> C

Part A:

From the measurement of the masses of A and B present before and after the reaction, the following values were obtained:

Initial mass of A = 4.0 g

Final mass of A = 0.0 g

Mass of A used up + 4.0 - 0.0 = 4.0 g

Initial mass of B = 9.0 g

Final mass of B = 5.1 g

Mass of B used up = 9.0 - 5.1 = 3.9 g

According to the law of conservation of mass, matter can neither be created nor destroyed but can change from one form to another. Therefore, theoretical yield of C equal the sum of the masses of A and B used up.

Theoretical yield of C = 4.0 + 3.9 = 7.9 g

Part B:

Given that the percent yield is 63.0 % = 0.63

Actual amount of C isolated = 0.63 * 7.9 = 5.0 g

5 0

3 years ago

What layer of the atmosphere is the ozone layer in?

vodomira [7]

Answer: The stratosphere!!

8 0

3 years ago

Read 2 more answers