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2 years ago

33. At the right of a chemical equation are

Chemistry

1 answer:

Bas_tet [7]2 years ago

4 0

Answer:

Reactant

Explanation:

hope this helps you

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The process that fuels a star is BEST described as________.

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Hydrogen fusion is the answer. It is also known as <span>hydrogen burning. </span>

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2 years ago

Is water an element compound or mixture

timama [110]

It is a Compound.

Water can't be a mixture because it is chemically bonded and cannot be separated into H2 and O by physical means.

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2 years ago

What is a displacement reactions

Alisiya [41]

<h2><u>Question</u><u>:</u>-</h2>

$\textsf{what is a displacement reactions? }$

<h2><u>Answer</u><u>:</u></h2>

$\large \underbrace{ \underline{ \sf Displacement \: reaction}}$

The reaction in which more reactive element replace a less reactive element from its compound is called displacement reaction.

Ex:-

$\bold{\large Zn+HCl \longrightarrow ZnCl_2+H_2}$

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2 years ago

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What is the name of the molecule shown? Will give brainliest if its right.

nadezda [96]

D. Pentane. Pentane has 5 Carbon and 12 Hydrogen, like the molecule shown.

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2 years ago

g Enter your answer in the provided box. If 30.8 mL of lead(II) nitrate solution reacts completely with excess sodium iodide sol

Ronch [10]

Answer:

$M=0.0637M$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$Pb(NO_3)_2(aq)+2NaI(aq)\rightarrow PbI_2(s)+2NaNO_3(aq)$

Thus, for 0.904 g of precipitate, that is lead (II) iodide, we can compute the initial moles of lead (II) ions in lead (II) nitrate:

$n_{Pb^{2+}}=0.904gPbI_2*\frac{1molPbI_2}{461gPbI_2}*\frac{1molPb(NO_3)_2}{1molPbI_2} *\frac{1molPb^{2+}}{1molPb(NO_3)_2} =1.96x10^{-3}molPb^{2+}$

Finally, the resulting molarity in 30.8 mL (0.0308 L):

$M=\frac{1.96x10^{-3}molPb^{2+}}{0.0308L}\\ \\M=0.0637M$

Regards.

3 0

2 years ago