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Paul [167]
3 years ago
14

What does the answer of element 3Na2S2O3?

Chemistry
1 answer:
Fynjy0 [20]3 years ago
4 0

Answer:

Explanation:

3× 22+2×32+ 6×16=

66+64+96=236

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An element gains 3 electrons to become stable. What is the new ion's charge?
Savatey [412]
The answer is -3. it would have a negative charge to gain
6 0
3 years ago
15 points + brainliest pls help :(
Komok [63]

Answer:

27 g

Explanation:

M(C6H12O6) = 6*12 + 12*1 + 6*16 = 180 g/mol

100 mL = 0.1 L solution

1.5 M = 1.5 mol/L

1.5 mol/L * 0.1 L = 0.15 mol  C6H12O6

0.15 mol * 180 g/1 mol = 27 g C6H12O6

6 0
3 years ago
When a hydrochloric acid solution is combined with a potassium hydroxide solution, an acid-base reaction occurs Write a balanced
Svetach [21]

Answer:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

Explanation:

Hydrochloric acid is an acid because it releases H⁺ in an aqueous solution.

Potassium hydroxide is a base because it releases OH⁻ in an aqueous solution.

When an acid reacts with a base they form a salt and water. This is a neutralization reaction. The neutralization reaction between hydrochloric acid and potassium hydroxide is:

HCl(aq) + KOH(aq) ⇒ KCl(aq) + H₂O(l)

7 0
4 years ago
The pressure and temperature of N² and gas drops from 303kPa at 300K to 202²kPa at -73°C. If the initial volume is 2L, find the
alex41 [277]

Answer:

Gjvb

Explanation:

Using the combined gas law equation as follows:

P1V1/T1 = P2V2/T2

Where;

P1 = initial pressure (kPa)

P2 = final pressure (kPa)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to this question;

T1 = 300K

T2 = -73 + 273 = 200K

P1 = 303kPa

P2 = 202kPa

V1 = 2L

V2 = ?

Using the above formula:

303 × 2/300 = 202 × V2/200

606/300 = 202V2/200

Cross multiply;

606 × 200 = 300 × 202V2

121200 = 60600V2

V2 = 121200/60600

V2 = 2L

The new volume is 2L

8 0
3 years ago
Use the information in the table to describe the temperature-vs.-time diagrams.
lara31 [8.8K]

Answer:

At 30 and 2,204

diagonal

liquid phase

2856

top horizontal line

flat

the change from a solid to a liquid

Explanation:

3 0
3 years ago
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