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raketka [301]
3 years ago
8

A balloon containing helium gas expands from 230

Chemistry
1 answer:
andre [41]3 years ago
5 0

Answer:

1.0 *10^(-4) mol

Explanation:

For gases:

n1/n2 = V1/V2

n1/3.8*10^(-4) mol = 230 mL/ 860 mL

n1 = 3.8*10^(-4)*230/860 = 1.0 *10^(-4) mol

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Answer: 9.27 g of Na

Explanation:Please see attachment for explanation

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3 years ago
question #5: corals are sensitive to temperature . if temperatures are raised , it will cause the coral to bleach . what does bl
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3 years ago
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Ten lab safety rules
Bogdan [553]
Don't touch your eyes.

Never taste-test unless the teacher tells you to.

Do not touch anything without directions.

Wear safety goggles. 

Wash your hands after each experiment.

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Clean up your workplace.

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4 0
3 years ago
The density of water is 1 g/cm3(1 gram per cubic centimeter); using this fact as a reference & Table c , how would you deter
NISA [10]

Answer:

Explanation:

Any densities less than 1g/cm3 will float, while objects with densities over 1g/cm3 will sink.

6 0
3 years ago
State with reasons, whether sulphur dioxide is acting as an oxidizing agent or a reducing agent in each of the following reactio
evablogger [386]

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A) oxidizing agent is SO2

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Explanation:

A) This is a redox reaction in which oxidation and reduction occur simultaneously.

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In this, SO2 undergoes oxidation and NaClO is the oxidizing agent

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3 years ago
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