Which three of the five items would be best to include in a safety contract?

2 answers:

7 0

Student Safety Contract - Flinn Scientific
ties which require the use of hazardous chemicals. Safety in ... vided to you in this student safety contract. ... 3. Never work alone. No student may work in the laboratory without an instructor ... Look for things such as.
Missing: five ‎| Must include: five

jok3333 [9.3K]2 years ago

6 0

Answer:

(1) Label all containers

(2) Tie long hair back

(5) Wear safety goggles at all times

Explanation:

Took the test on Edge. Hope this helps! :)

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Which of the following best describes a single-replacement reaction?

miss Akunina [59]

Answer:

One element takes the place of another in a compound

Explanation:

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katen-ka-za [31]

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3 years ago

What reaction is C+O2=CO2

slamgirl [31]

Answer:

Combination or synthesis

Explanation:

The reaction given below:

C + O₂ → CO₂

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The driving force for such reaction is the large and negative heat of formation of the product.

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3 years ago

Nault 25000L 250 our = 25000L 15040 8. How many grams of CaCl2 are needed to make 150.0 mL of a 0.500 M CF solution? (Note: CaCl

yuradex [85]

Answer:

You need 8,324 g of CaCl₂ yo make this solution

Explanation:

Molarity is a way to express concentration in a solution, in units of moles of solute per liter of solution.

To know the grams of CaCl₂ it is necessary to know, first, the moles of this substance with the desired volume and concentration , thus:

0,1500 L × $\frac{0,500 mol}{L}$ = 0,075 CaCl₂ moles