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ruslelena [56]
3 years ago
8

ASAP (2 questions & are iv the pic ) will get BRAINIEST

Chemistry
1 answer:
Zinaida [17]3 years ago
3 0

Answer:

Hey again!

Q1: 4 N

Q2: 24 N

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A carbon atom is able to form four single covalent bonds because it
kati45 [8]
 <span>has four valence electrons in its outermost energy level. 
An organic compound in which a carbonyl group is bonded to two different carbon atoms is a(n) ketone. 
All of the following release carbon into the atmosphere except the 
sedimentation of dead organisms.</span>
3 0
3 years ago
Read 2 more answers
How many grams of H2 will react with 350 g of N2?
miss Akunina [59]

Answer:

10.80

Explanation:

As per the equation, let us calculate the mole ratio. N2+3H2→2NH3. As per the equation one mole of nitrogen  reacts with 1 mol of hydrogen.

In terms of mass. 28.01 g of nitrogen needs 3 mol of hydrogen or 6.048 g of hydrogen.

We can set up the ratio;

28.01 g of

l

N

2

needs  

6.048 g of

l

H

2

1 g of

l

N

2

needs  

6.048

28.01

g  of

l

H

2

50.0 g of

l

N

2

needs  

6.048

×

50.0

28.01

l

g of

l

H

2

=

10.80 g of

l

H

2

6 0
3 years ago
(HELP PLEASE) which pair would have an electrostatic force of attraction between them?
NISA [10]

Answer: K+ and P 3−

Explanation:

Electrostatic force of attraction is the attraction between different molecules that comes from them being electrically charged.

For molecules to have an electrostatic force of attraction, they need to have opposing charges because like charges repel each other but opposite charges attract.

In the question above, the only option that has opposing charges is option D so this is the correct option.

4 0
3 years ago
Stings to the touch
likoan [24]
It’s A because bleach doesn’t sting on touch and you can’t taste it
8 0
3 years ago
A 31.0 mL sample of 0.624M perchloric acid is titrated with a 0.258M sodium hydroxide solution.
levacccp [35]

Answer:

0.0922 M

Explanation:

The problem first states that the titration is made using NaOH, and later asks about the addition of KOH. I'm going to assume NaOH was used throughout the whole problem. The result does not change if it was KOH instead.

The reaction that takes place is:

  • HClO₄ + NaOH → NaClO₄ + H₂O

First we <u>calculate how many HClO₄ moles are there in the sample</u>, using the <em>given molarity and volume</em>:

  • 0.624 M * 13.0 mL = 8.11 mmol HClO₄

Then we <u>calculate how many NaOH moles were added</u>:

  • 0.258 M * 15.0 mL = 3.87 mmol NaOH

Now we calculate how many HClO₄ remained after the reaction:

  • 8.11 - 3.87 = 4.24 mmol HClO₄

As <em>HClO₄ is a strong acid</em>, 4.24 mmol HClO₄ = 4.24 mmol H⁺

Finally we <u>calculate the molarity of H⁺</u>, using the<em> calculated number of moles and final volume</em>:

  • Final volume = 31.0 mL + 15.0 mL = 46.0 mL
  • 4.24 mmol / 46.0 mL = 0.0922 M
5 0
3 years ago
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