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Pie
3 years ago
10

Why beaker is least accurate

Chemistry
2 answers:
Alexxandr [17]3 years ago
5 0
It's very difficult to achieve accurate measurements
rodikova [14]3 years ago
3 0
Beakers are usually very wide and not needed for precise measurements so they don't need to be exact. Instead manufacturers produce graduated cylinders and volumetric flasks for when precision is important.
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Which ones are all renewable resources?
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D, they can be renewed quickly rather than non renewables in which nonrenewable take millions of years. Biomass is all around us, so is water (hydro) and the sun is around us too. 
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3 years ago
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What is the difference between parent material
Kazeer [188]

Answer:

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Explanation:

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3 years ago
When it acts as a base, which atom in hydroxylamine accepts a proton?
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3 years ago
How many atoms are there in 4 moles of table sugar ?
Likurg_2 [28]

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Explanation:

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7 0
3 years ago
How many moles in 3.69 x 10^30 molecules of carbon dioxide?
Sedaia [141]

0.612 \times 10^{7} \text { moles of } \mathrm{CO}_{2} are present in 3.69 \times 10^{30} \text { molecules of } \mathrm{CO}_{2}

<u>Explanation:</u>

It is known that each mole of an element is composed of avagadro's number of molecules. So if we need to determine, we need to divide the number of molecules with the avagadro's number.

So,

    1 mol of element =6.02 \times 10^{23} molecules of element

As here 3.69 \times 10^{30} molecules of carbon di oxide is given. So the moles in it will be

   No. of moles of carbon dioxide = \frac{3.69 \times 10^{30}}{6.02 \times 10^{23}}

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Thus,

0.612 \times 10^{7} of carbon dioxide are present in 3.69 \times 10^{30} \text { molecules of } \mathrm{CO}_{2}.

4 0
3 years ago
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