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patriot [66]
3 years ago
9

Improper use of cleaning agents in food-contact areas can add which of the following to food?

Chemistry
2 answers:
Black_prince [1.1K]3 years ago
7 0

The answer is A glass, meetal, insects and dirt ...found it in my textbook


Nikitich [7]3 years ago
5 0
I think the correct answer would be direct additives. Not proper handling of cleaning agents especially in areas where food are prepared or served would most likely add chemicals to the food which is harmful to the consumer. Hope this helps.
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A sample of ethanol (C2H6O) has a mass of 0.2301 g. Complete combustion of this sample causes the temperature of a bomb calorime
Keith_Richards [23]

Answer:  4.994\times 10^{-3}  moles

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass , occupies 22.4 L at STP and contains avogadro's number 6.023\times 10^{23} of particles.

To calculate the moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}

Given mass of ethanol = 0.2301

Molar mass of ethanol = 46.07 g/mol

\text{Number of moles of ethanol}=\frac{0.2301g}{46.07g/mol}=4.994\times 10^{-3}

Thus there are 4.994\times 10^{-3}  moles of ethanol are present in the sample.

7 0
4 years ago
Read 2 more answers
भारत के एक ही राज्य में लगातार सबसे लंबे समय तक
IgorLugansk [536]

Answer:

C

Explanation:

6 0
3 years ago
Using the tools and knowledge of science to solve a problem or build new technology is called...
kaheart [24]

Answer:

Invention

Explanation:

Scientific ideas can be applied in novel was to solve new scientific problems and create new technology. This process helps to make life easier and better.

The application of scientific knowledge to solve new problems and create new technology is generally referred to as invention.

5 0
4 years ago
Xianming runs a titration and collects, dries, and weighs the BaSO4(s) produced in the experiment. He reports a mass of 0.2989 g
Leto [7]

The question is incomplete, here is the complete question:

Ba(OH)_2(aq.)+H_2SO_4(aq.)\rightarrow BaSO_4(s)+2H_2O(l)

Xianming runs a titration and collects, dries, and weighs the BaSO_4(s) produced in the experiment. He reports a mass of 0.2989 g go BaSO_4 Based on this, calculate the concentration of Ba(OH)_2 solution.

<u>Answer:</u> The concentration of barium hydroxide solution is 0.0013 moles.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}  

Given mass of barium sulfate = 0.2989 g

Molar mass of barium sulfate = 47.87 g/mol

Putting values in above equation, we get:

\text{Moles of barium sulfate}=\frac{0.2989g}{233.4g/mol}=0.0013mol

The given chemical reaction follows:

Ba(OH)_2(aq.)+H_2SO_4(aq.)\rightarrow BaSO_4(s)+2H_2O(l)

By Stoichiometry of the reaction:

1 mole of barium sulfate is produced from 1 mole of barium hydroxide

So, 0.0013 moles of barium sulfate will be produced from = \frac{1}{1}\times 0.0013=0.0013mol of barium hydroxide

As, no volume of the container is given. So, the concentration will be calculated in moles only.

Hence, the concentration of barium hydroxide solution is 0.0013 moles.

6 0
3 years ago
How to do this ? it’s chemistry
natima [27]

Answer:

1. Metals (H)

2. Nonmetals (K)

3. Period (P)

4. Family (C)

5. Metaloids (E)

6. Menedleev (M)

7. Halogens (D)

8. Alkalai (A)

9. Transitional Metal (T)

10. No Family Name (M)

11. Noble Gas (P)

12. Alkaline Earth Metals (B)

5 0
3 years ago
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