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3 years ago

In relation to the reactants of a chemical reaction, the products are

2 answers:

8 0

In a chemical reaction, the products should always be equal to the reactants (in this case you would answer “the same as the reactants”) since we can neither create nor destroy matter (law of conservation!)

Hope this helps! :)

Viktor [21]3 years ago

8 0

Answer:

The answer is D) different from the reactants

Explanation:

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Which 1.0 M solution has the lowest pH? <br> A -HCN <br> B -H3PO4 <br> C -H2C2O4<br> D -HCl

fredd [130]

The solution with the lowest pH would mean that it is an acid, specifically a strong acid which completely dissociates into ions in aqueous solution. Among the choices listed above, I think the correct answer is option D. It is nitric acid that will have the lowest pH because it is the only strong acid in the group

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4 years ago

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What is the formula of Potassium hydroxide? What is it common name? Is it Alkali?

seropon [69]

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Question: What is the formula of Potassium hydroxide? What is it common name? Is it Alkali?

Answer: The formula of Potassium hydroxide is KOH. It's common name is Caustic Potash. Yes, it is alkali because Potassium is the most reactive metal.
It is very strong base because it has potassium atom which is the most reactive element. It turns red litmus paper into blue which proves that it is basic in nature.

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4 years ago

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Pls help me thx! I would appreciate it!

inessss [21]

Answer:

Here just look at the pic here

Explanation:

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3 years ago

A student obtains a 10.0g sample of a white powder labeled as BaCl2. After completely dissolving the powder in 50.0mL of distill

LekaFEV [45]

Answer:

Whether barium chloride solution was pure

Explanation:

We may answer whether barium chloride was pure. The sequence of this experiment might be depicted by the following balanced chemical equations:

$BaCl_2 (aq)\rightarrow Ba^{2+} (aq) + 2 Cl^- (aq)$

$Ba^{2+} (aq) + SO_4^{2-} (aq)\rightarrow BaSO_4 (s)$

Having a total sample of 10.0 grams, we would firstly find the mass percentage of barium in barium chloride:

$\omega_{Ba^{2+}} = \frac{M_{Ba}}{M_{BaCl_2}} = \frac{137.327 g/mol}{208.23 g/mol\cdot 100\% = 65.95 \%$

This means in 10.0 g, we have a total of:

$m_{Ba^{2+}} = 10.0 g\cdot 0.6595 = 6.595 g$ of barium cations.

The precipitate is then formed and we measure its mass. Having its mass determined, we'll firstly find the percentage of barium in barium sulfate using the same approach:

$\omega_{Ba} = \frac{137.327 g/mol}{233.38 g/mol}\cdot 100\% = 58.84 \%$

Multiplying the mass we obtained by the fraction of barium will yield mass of barium in barium sulfate. Then:

if this number is equal to 6.595 g, we have a pure sample of barium chloride;
if this number is lower than 6.595 g, this means we have an impure sample of barium chloride, as we were only able to precipitate a fraction of 6.595 g.

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3 years ago

Why can a liquid take the shape of the bottom of it's container

kompoz [17]

The particles can move around each other because they do not have as strong bonds as solids do.

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3 years ago