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3 years ago

What are the four points of food safety?

Chemistry

1 answer:

KatRina [158]3 years ago

7 0

The four steps of food safety are:

Clean: Wash your hands and clean surfaces often
Separate: Don't cross-contaminate the food
Cook: Cook the food to the right temperature
Chill: Refrigerate promptly

Hope this helps! If you need more help or have any questions just message me! :)

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3 years ago

How many moles of atoms are contained in 15.7 g of Bromine

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3 years ago

Describe the evidence of changes in organisms in the Cambrian Era that are reflected in the fossil record.

UkoKoshka [18]

Answer:

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Explanation:

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3 years ago

Which of the following is the correct definition for electronegativity?

yuradex [85]

Answer:

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<h3>Which of the following is the correct definition for electronegativity</h3>

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3 years ago

An exponent of "2" means that if we double the concentration of the reactant the rate doubles as well Exponents in rate laws are

Karo-lina-s [1.5K]

Answer:

- False.

- True.

Explanation:

Hello, for each statement we state:

- An exponent of "2" means that if we double the concentration of the reactant the rate doubles as well.

FALSE because considering a rate law like:

$-r=kC^2$

The exponent of "2" powers the concentration to the second power, not doubles the rate law, thus, if C is 3, for k=1, r will be -9. On the other hand if the rate is like:

$-r=kC$

The rate will be -3, that is why the rate is not doubled when the "2" in concentration is present.

- Exponents in rate laws are based on the coefficients from the balanced equation.

FALSE because for nonelemental chemical reactions, the exponents do not match with each species' stoichiometric coefficients in the rate law.

- The rate constant, k, takes into account the effect of activation energy and temperature on the reaction.

TRUE, since the Arrhenius equation allows us to prove the effect of the activation energy and the temperature:

$k=Aexp(-\frac{Ea}{RT})$

- Differential rate laws allow us to compare concentration and time.

TRUE as they are given like:

$\frac{1}{\nu _A} \frac{dC_A}{dt} =\frac{1}{\nu _B} \frac{dC_B}{dt} =...$

Best regards.

5 0

3 years ago

What are the four points of food safety?​

What are the four points of food safety?