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3 years ago

I NEED HELPP Describe how carbon and oxygen form carbon dioxide.

Chemistry

2 answers:

Fudgin [204]3 years ago

4 0

When 1 atom of carbon and 2 atoms of Oxygen combine together, it forms Carbon Dioxide CO2

wlad13 [49]3 years ago

3 0

Carbon and oxygen can integrate to form gases. whilst combustion of carbon is complete, i.e. inside the presence of masses of air, the product is particularly carbon dioxide.

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How many protons, neutrons, and electrons does gold have? I need to know how many protons, neutrons, and electrons the element g

zhuklara [117]

Protons: 79
neutrons: 118
electrons: 79

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3 years ago

A solution prepared by mixing 10 ml of 1 m hcl and 10 ml of 1.2 m naoh has a ph of

blagie [28]

Answer: pH of resulting solution will be 13

Explanation:

pH is the measure of acidity or alkalinity of a solution.

Moles of $H^+$ ion = $Molarity\times {\text {Volume in L}}=1M\times 0.01L=0.01mol$

Moles of $OH^-$ ion = $Molarity\times {\text {Volume in L}}=1.2M\times 0.01L=0.012mol$

$HCl+NaOH\rightarrow NaCl+H_2O$

For neutralization:

1 mole of $H^+$ ion will react with 1 mole of $OH^-$ ion

0.01 mol of $H^+$ ion will react with = $\frac{1}{1}\times 0.01mole$ of $OH^-$ ion

Thus (0.012-0.01)= 0.002 moles of $OH^-$ are left in 20 ml or 0.02 L of solution.

$[OH^-]=\frac{0.002}{0.02L}=0.1M$

$pOH=-log[OH^-]$

$pOH=-log[0.1]=1$

$pH+pOH=14$

$pH=14-1=13$

Thus the pH of resulting solution will be 13

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3 years ago

Volume is an extensive physical property because it is dependent on the size of the sample.

BaLLatris [955]

Hi,

The statement is true, as the volume of a sample depends on its size.

I hope this helps. If I was not clear enough or if you’d like further explanation please let me know. Also, English is not my first language, so I’m sorry for any mistakes.

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3 years ago

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Can a solid defuse into both a liquid and a solid

MariettaO [177]

Diffusion of one state of matter into another: Solid can diffuse in liquid. When sugar is added to water, whole water becomes sweet without stirring it because of diffusion of sugar into water. ... Carbon dioxide and oxygen are the two gases in air which dissolves in water by diffusion.

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What is the total volume of solution that was dispensed from this burette?

kykrilka [37]

Answer:

it will a i did the quiz got it all right

Explanation:

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3 years ago