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wel
3 years ago
14

Hi......................... HELLO

Chemistry
2 answers:
GREYUIT [131]3 years ago
7 0

Answer:

Hii hello how are you....

PtichkaEL [24]3 years ago
6 0

Answer:

hi

Explanation:

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An alpha particle has the same composition as a A) hydrogen nucleus B) deuterium nucleus C) beryllium nucleus D) helium nucleus​
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Helium Nucleus

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Which statement accurately describes non renewable energy sources ?
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a resource that cannot be replenished in a short period of time

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Advantages and disadvantages of titration?
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Answer:

What are the advantages of titration?

Titrimetric analysis commonly referred to as volumetric analysis offers distinct advantages over cumbersome gravimetric methods:

Speed of analysis.

Instantaneous completion of reactions.

Greater accuracy due to minimization of material loss involved in decanting, filtration, precipitation or similar operations.

Explanation:

Disadvantages

It is a destructive method often using up relatively large quantities of the substance being analysed.

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It can produce significant amounts of chemical waste which has to be disposed of.

It has limited accuracy.

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2 years ago
How to tell the difference between polar and nonpolar covalent bonds?
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You need to look at the electronegativity and decide wheter the difference of both of the numbers are significant enough to form a polar bond
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3 years ago
5. A hollow glass sphere has a volume of 350 mL and
Rina8888 [55]

Explanation:

Given that,

Volume of a hallow glass sphere is 350 mL

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We need to find the weight of the sphere. The ratio of density of substance to the density of water is called specific gravity.

The density of water is 1 g/mL

\text{specific gravity}=\dfrac{\text{density of substance}}{\text{density of water}}\\\\SG=\dfrac{m}{V\times \rho_w}\\\\m=SG\times V\times \rho_w\\\\m=1.252\times 350\ mL\times 1\ g/mL\\\\m=438.2\ \text{grams}

We know that,

1 pound = 453.592 grams

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m = 0.97 lbs

So, the weight of the sphere is 0.97 lbs or 0.97 pounds.

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3 years ago
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