Is MgCo3 = MgO + CO2 redox reactions

Chemistry

1 answer:

chubhunter [2.5K]3 years ago

7 0

Yes they are equal reactions

You might be interested in

B. What is the mass of a sample of mercury if its volume is 4.35 cubic centimeters?

icang [17]

Answer:

Mercury has a density of 13.6g/mL

6 0

3 years ago

By how much will the ph change if 0.025 mol of hcl is added to 1.00 l of the buffer that contains 0.15 m hc2h3o2 and 0.25 m c2h3

Setler [38]

According to the reaction equation:

CH3COO- + H+ → CH3COOH

initial 0.25 0.15

change - 0.025 + 0.025

Equ (0.25-0.025) (0.15 + 0.025)

first, we have to get moles acetate and moles acetic acid:

moles of acetate = 0.25 - 0.025 = 0.225 moles

∴ [CH3COO-] = 0.225 mol / 1 L = 0.225 M

moles of acetic acid = 0.15 + 0.025 = 0.175 moles

∴ [ CH3COOH] = 0.175 mol / 1L = 0.175 M

Pka = -㏒ Ka

= -㏒ 1.8 x 10^-5

= 4.74

from H-H equation we can get the PH value:

PH = Pka + ㏒ [acetate / acetic acid]

PH = 4.74 + ㏒[0.225/0.175]

∴ PH = 4.8

3 0

3 years ago

A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to . He'll do this by add

erma4kov [3.2K]

Answer:

0.295 L

Explanation:

It seems your question lacks the final concentration value. But an internet search tells me this might be the complete question:

" A chemist must dilute 47.2 mL of 150. mM aqueous sodium nitrate solution until the concentration falls to 24.0 mM. He'll do this by adding distilled water to the solution until it reaches a certain final volume. Calculate this final volume, in liters. Be sure your answer has the correct number of significant digits. "

Keep in mind that if your value is different, the answer will be different as well. However the methodology will remain the same.

To solve this problem we can<u> use the formula</u> C₁V₁=C₂V₂

Where the subscript 1 refers to the concentrated solution and the subscript 2 to the diluted one.

47.2 mL * 150 mM = 24.0 mM * V₂

V₂ = 295 mL

And <u>converting into L </u>becomes:

295 mL * $\frac{1 L}{1000mL}$ = 0.295 L

6 0

4 years ago

A charasteristic that helps a living thing survive

Fantom [35]

Ability to adapt to their environment?? there isn't much context to the question /:

3 0

4 years ago

Read 2 more answers

The taiga biome has long, cold, dry winters and cool, wet summers. This biome receives very little sunlight during the winter an

NikAS [45]

Answer:

Foxes, and pine trees

Explanation:

Foxes have lots of fur on them and can survive cold and harsh winters. Pine tress are also found in this biome. (note this may or maybe right or wrong)

6 0

2 years ago