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ira [324]
3 years ago
10

What types of student conduct are inappropriate in the lab environment?List at least five types

Chemistry
1 answer:
Tanya [424]3 years ago
5 0
Being playful, not paying attention, putting anything from the lab in your mouth,
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A chemist has a block of aluminum metal (density is 2.7 g/mL). The block weighs 1.5. What is the volume of the aluminum block?
12345 [234]

Answer:

0.56 mL

Explanation:

Volume = mass ÷ density

Volume = 1.5 ÷ 2.7 g/mL

Volume = 0.5555555556 = 0.56 mL

The volume of the aluminum block is 0.56 mL.

Hope this helps. :)

4 0
3 years ago
What is the compound of c4?
klio [65]

Answer:

c4 is an explosive..

contains RDX, DOS, DOA, and PIB.

Explanation:

5 0
2 years ago
Solution A has a concentration of 3 M. If solution B is 5 times more concentrated than A what is it’s concentration?
raketka [301]

The answer is 15 M!!

5 0
3 years ago
How does an electron emit light?
Semenov [28]

Answer:

by moving between defined energy levels

6 0
3 years ago
"Calculate the number of millimoles in 500 mg of each of the following amino acids: alanine (MW = 89), leucine (131), tryptophan
Cloud [144]

Answer:

- Alanine =  5.61 mmoles

- Leucine = 3.81 mmoles

- Tryptophan = 2.45 mmoles

- Cysteine = 4.13 mmoles

- Glutamic acid = 3.40 mmoles

Explanation:

Mass / Molar mass = Moles

Milimoles = Mol . 1000

500 mg / 1000 = 0.5 g

- Alanine = 0.5 g / 89 g/m → 5.61x10⁻³ moles  . 1000 = 5.61mmoles

- Leucine = 0.5 g / 131 g/m → 3.81 x10⁻³ moles  . 1000 = 3.81 mmoles

- Tryptophan = 0.5 g / 204 g/m →  2.45x10⁻³ moles . 1000 = 2.45 mmoles

- Cysteine = 0.5 g / 121 g/m → 4.13x10⁻³ moles . 1000 = 4.13 mmoles

- Glutamic acid = 0.5 g 147 g/m → 3.40x10⁻³ moles . 1000 =  3.4 mmoles

5 0
3 years ago
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