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3 years ago

Is glass biotic or abiotic

2 answers:

8 0

Glass is abiotic. This is because glass is not a living organism, so that is why it is not a biotic. I hope this helped you!

zhuklara [117]3 years ago

4 0

Glass is not a living organism, so it is <u>abiotic</u>.

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PLEASE HELP ME Which of the following is a Brønsted-Lowry base but not an Arrhenius base?

never [62]

Ur answer is going to be <span>NH 3 or D AND PLEASE MARK ME AS BRAINLIEST CAUSE IVE NEVER GOT BRAINLIEST BEFORE AND HAVE A GOOD DAY !</span>

4 0

3 years ago

C. Neither a Physical or Chemical Changu

Nutka1998 [239]

Explanation:

I think B a chemical change

5 0

3 years ago

When aqueous solutions of calcium bromide and potassium carbonate are combined, solid calcium carbonate and a solution of potass

ladessa [460]

$K_2CO_3 + CaBr_2$ → $KBr + CaCO_3$ is the net ionic equation for this reaction.

<h3>What is an ionic equation?</h3>

An ionic equation is a synthetic equation where electrolytes are composed as separated particles.

$K_2CO_3 + CaBr_2$ → $KBr + CaCO_3$ is the net ionic equation for this reaction.

A balanced ionic equation. shows the reacting ions. in a chemical reaction. These equations can be used to represent what happens in precipitation reactions.

Learn more about ionic equation here:

brainly.com/question/16225321

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5 0

2 years ago

Part 1: A cylinder containing 20.0 L of compressed nitrogen is connected to an empty (evacuated) vessel with an unknown volume.

baherus [9]

Answer:

The volume of the vessel is 250 L

Partial pressure of hydrogen = 189 torr

Explanation:

Using Boyle's law

${P_1}\times {V_1}={P_2}\times {V_2}$

Given ,

V₁ = 20.0 L

V₂ = ?

P₁ = 25 atm

P₂ = 2 atm

Using above equation as:

${P_1}\times {V_1}={P_2}\times {V_2}$

${25}\times {20.0}={2}\times {V_2}$

${V_2}=\frac {{25}\times {20.0}}{2}\ L$

${V_2}=250\ L$

<u>The volume of the vessel is 250 L.</u>

According to Dalton's law of partial pressure:-

$P_{H_2}=Mole\ fraction\times Total\ Pressure$

So, according to definition of mole fraction:

$Mole\ fraction\ of\ H_2=\frac {n_{H_2}}{n_{H_2}+n_{He}}$

Also,

Mole fraction of H₂ = 1 - Mole fraction of He = 1 - 0.75 = 0.25

So,

Total pressure = 756 torr

Thus,

$P_{H_2}=0.25\times 756\ torr$

<u>Partial pressure of hydrogen = 189 torr.</u>

7 0

3 years ago

WILL GIVE BRAINLIEST!Which statement best describes electrolytic and voltaic cells?

Jlenok [28]

Answer:

the last answer is right.

3 0

3 years ago