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3 years ago

Give one safety precaution should take during carbon and lead oxide experiment

Chemistry

2 answers:

Tcecarenko [31]3 years ago

8 0

Answer : Use safety goggles and gloves. Remember not to touch you face

Explanation:

Bingel [31]3 years ago

3 0

Answer:

use safety goggles

Explanation:

plz give me brainleist

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Please answer asap!

kaheart [24]

200 ml is 1/5 of a liter, so the answer is five times the number of moles present in the solution. 0.6 moles/0.2 liter = x moles/1.0 liter. Solving for x gives 0.2 x = 0.6 or x = 3.0 M

so the answer is c

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3 years ago

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nikklg [1K]

ANSWERS:

1. $2KClO_{3}$ ⇒ 2KCl + $3O_{2}$

2. $H_{2} C_{2} O_{4} + 2NaOH$ ⇒ $Na_{2} C_{2} O_{4} + 2 H_{2} O$

3. $2 C_{10} H_{22} + 31O_{2}$ ⇒ $20C O_{2} + 22 H_{2} O$

4. $4 H_{2} + Fe_{3} O_{4}$ ⇒ $3Fe +4 H_{2} O$

5. $4P + 5 O_{2}$ ⇒ $2 P_{2} O_{5}$

I have attached my work for 1-3. I would like to see if you can get 4 and 5 on your own. but, if you are struggling/copnfused please let me know in the comments! :)

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4 years ago

When you breath in, oxygen passes through the walls of the ______________(tiny sac-like structures) and into the blood.

kifflom [539]

Answer:

alveoli

Explanation:

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3 years ago

The elements listed in the periodic table account

ddd [48]

Answer:

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3 years ago

Find the volume of 0.100M hydrochloric acid necessary to react completely with 1.51g Al(OH)3.

shtirl [24]

Reaction equation:
Al(OH)₃ + 3HCl → AlCl₃ + 3H₂O
Moles of Al(OH)₃:
moles = mass/Mr
= 1.51 / (27 + 17 x 3)
= 0.019
Molar ratio Al(OH)₃ : HCl = 1 : 3
Moles of HCl required = 0.019 x 3
=0.057
concentration = moles/volume
volume = 0.057 / 0.1
= 0.57 dm³
= 570 ml

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3 years ago

Give one safety precaution should take during carbon and lead oxide experiment​

Give one safety precaution should take during carbon and lead oxide experiment