All categories

3 years ago

Using knowledge from this lesson, make a list of ten lab safety rules.

Chemistry

2 answers:

charle [14.2K]3 years ago

8 0

Act professionally and use common sense.

Wear proper attire.

Locate safety equipment.

Respect animals.

Use chemicals and glassware safely.

Use heat and fire safely.

Clean up spills and broken glass carefully and place waste in proper containers.

Know rules for treating injuries and putting out fires.

asambeis [7]3 years ago

7 0

Act professionally and use common sense.

Wear proper attire.

Locate safety equipment.

Respect animals.

Use chemicals and glassware safely.

Use heat and fire safely.

Clean up spills and broken glass carefully and place waste in proper containers.

Know rules for treating injuries and putting out fires.

You might be interested in

Enter your answer in the provided box. Before arc welding was developed, a displacement reaction involving aluminum and iron(III

Likurg_2 [28]

Answer:

grams of iron = 2262.4 g

Explanation:

The balanced chemical equation should be represented first.

2Al + Fe2O3 → Al2O3 + 2Fe

find the limiting reactants by converting to moles.

covert 1.64 kg to grams = 1640 g

moles = mass/molar mass = 1640/27 = 60.7407407407 moles

60.7407407407 × 1 mol-rxn /2 = 30.37 mol-rxn

The limiting reactant is Fe2O3 Therefore it will determine the yield of Iron

2Al + Fe2O3 → Al2O3 + 2Fe

molar mass of Fe2O3 = 56 × 2 + 16 × 3 = 112 + 48 = 160 g

atomic mass of iron = 56

mass of iron in the reaction = 56 × 2 = 112 g

moles = mass/molar mass

mass = moles × molar mass

mass = 20.2 × 160 = 3232 g

if 160 g of Fe2O3 give 112 g of iron

3232 g of Fe2O3 will give ? grams of iron

grams of iron = 3232 × 112/ 160

grams of iron = 361984 /160

grams of iron = 2262.4 g

7 0

3 years ago

In order for fission reactions to be successful, they must be self-perpetuating, meaning they must be able to keep themselves go

aleksandrvk [35]

Answer:

Option C is correct.

The minimum amount of material that is needed for a fission reaction to keep going is called the critical mass.

Explanation:

Nuclear fission is the term used to describe the breakdown of the nucleus of a parent isotope into daughter nuclei.

Normally, the initial energy supplied for nuclear fission is the energy to initiate the first breakdown of the first set of radioactive isotopes that breakdown. Once that happens, the energy released from the first breakdown is enough to drive further breakdown of numerous isotopas in a manner that leads to more energy generation.

But, for this to be able to be sustained and not fizzle out, a particular amount of radioactive material to undergo nuclear fission must be present. This particular amount is termed 'critical mass'

Hope this Helps!!!

3 0

3 years ago

The formula equation of Sodium carbonate + hydrochloric acid

dusya [7]

Answer:

the reaction is: Na2CO3 + 2HCl ===》 2NaCl + H2O + CO2(g)

6 0

3 years ago

Nuclear fusion is the source of energy for stars. Besides hydrogen, which other element is most likely also common in stars?

cupoosta [38]

Answer:

helium

Explanation:

coz it take part In fusion reaction

8 0

3 years ago

Can someone help me with this research for the topics plz help. If everything is properly done then I will mark the brainliest a

Paha777 [63]

Eeddtyggrdtttuuhhuhhuuuuyyrrrtyy

5 0

4 years ago