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3 years ago

HELP ME PLEASE

Chemistry

1 answer:

Marina86 [1]3 years ago

7 0

Answer:

i think A is the correct answer

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The________ cation will precipitate after the_________ step. Then the _________cation will precipitate after the________ step.

Novay_Z [31]

Answer:

f. Sn^4+

c. second

e. Al^3+

d. third

Explanation:

This question comes from a quantitative analysis showing the flowchart of a common scheme for identifying cations.

Now, from the separation scheme, Let's assume that Sn⁴⁺ & Al³⁺ were given; Then, Yes, the separation will work.

However, there will be occurrence of precipitation after the 1st step1.

So, the Sn⁴⁺ cation will precipitate after the second step. Then the Al³⁺ cation will precipitate after the third step.

8 0

3 years ago

I need this by today it’s due 4-24-20

dybincka [34]

Answer:

Question 6

Plants use flowers to absorb photsynthese

4 0

3 years ago

HALP PLZ 50 points brainlest and thanks if u halp

Novay_Z [31]

I Would Say The Answer Is C.

8 0

4 years ago

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The psychoactive drug sold as a methamphetamine - "speed" (c10h15n) - undergoes a series of reactions in the body; the net resul

Phoenix [80]

Answer: The coefficient of nitrogen in the given equation is 2.

Explanation: The reaction for the oxidation of methamphentamine with oxygen gas in the body is given by:

$4C_{10}H_{15}N(s)+55O_2(g)\rightarrow 40CO_2(g)+30H_2O(l)+2N_2(g)$

By Stoichiometry,

4 moles of methamphentamine reacts with 55 moles of oxygen gas to produce 40 moles of carbon dioxide gas, 30 moles of water and 2 moles of nitrogen gas.

Coefficient of $C_{10}H_{15}N=4$

Coefficient of $O_2=55$

Coefficient of $CO_2=40$

Coefficient of $H_2O=30$

Coefficient of $N_2=2$

Hence, the coefficient of nitrogen in the given equation is 2.

8 0

3 years ago

What is one characteristic of a sample of matter that indicates it is a pure substance?

victus00 [196]

Answer:d

Explanation:

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3 years ago

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