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Pepsi [2]
3 years ago
9

An analysis for copper was performed on two pure solids. One solid was found to contain 43.0% copper; the other contained 32.0%

copper. Could these solids be samples of the same copper-containing compound
Chemistry
1 answer:
fgiga [73]3 years ago
8 0

Answer:

No, these sample could no be same

Explanation:

Percentage of copper in both sample are different means both are taken from different sample because if we says both are from same sample then its violates the law of definite proportion

according to this law a given compound always contains same proportion of element by mass and it does not depend on the source

eg: water from sea and drainage both have same composition means same amount of oxygen and hydrogen by mass is present

Hence given samples are not same

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Besides water, what is the product of a Neutalization Reaction between H2SO4 and LiOH?
tigry1 [53]

Answer:

The answer to your question is d. Li₂SO₄

Explanation:

Data

H₂SO₄ reacts with LiOH

Process

This is a neutralization reaction that occurs between an acid and a base and the products will always be water and a binary or ternary salt.

In this reaction, the acid is H₂SO₄ and the base is LiOH, then the products will be water and Lithium sulfate.

Balanced chemical reaction

                                 H₂SO₄  +  LiOH  ⇒   Li₂SO₄  +  H₂O

8 0
3 years ago
Read 2 more answers
Which of the following molecules has a double bond? A. butane B. 2-butyne C. cyclopentane D. 1-methylcyclohexene
Tanzania [10]
D. would be my guess im almost positive that its right
3 0
4 years ago
When the pH value of a solution is changed from 2
inna [77]

increases my factor of 10

6 0
4 years ago
When NH3(g) reacts with O2(g), the products of the combustion are NO(g) and H2O(g). What volume of O2(g) is required to react wi
arlik [135]

<u>Answer:</u> The volume of oxygen gas required is 3.75 mL

<u>Explanation:</u>

STP conditions:

1 mole of a gas occupies 22.4 L of volume.

We are given:

Volume of ammonia reacted = 3.00 mL = 0.003 L    (Conversion factor:  1 L = 1000 mL)

The chemical equation for the reaction of ammonia with oxygen follows:

4NH_3(g)+5O_2\rightarrow 4NO(g)+6H_2O(g)

By Stoichiometry of the reaction:

(4 × 22.4) L of ammonia reacts with (5 × 22.4) L of oxygen gas

So, 0.003 L of ammonia will react with = \frac{(5\times 22.4)}{(4\times 22.4)}\times 0.003=0.00375L=3.75mL of oxygen gas

Hence, the volume of oxygen gas required is 3.75 mL

4 0
3 years ago
Discuss whether two products are required for a chemical reaction. (NEED HELP ASAP)
Alex787 [66]

Answer:

Yes.

Explanation:

"These starting substances of a chemical reaction are called the reactants, and the new substances that result are called the products."

There is a beginning product, and a reactant is needed in order for something to happen.

For example, according to Newton, something cannot happen until an exterior force comes and stops/pushes it.

Sorry if this is incorrect, I am just 4th grade :(

6 0
3 years ago
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