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Mashcka [7]
3 years ago
7

BRAINLIEST IF ANSWERED IN THE NEXT 5M

Chemistry
1 answer:
belka [17]3 years ago
5 0
(NH₄)₂CO₃ → 2NH₄⁺ + CO₃²⁻
                      k=2        k=1
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Ian uses litmus paper to determine whether five unknown solutions are acids or bases. The litmus paper turns red when the pH is
Roman55 [17]

Answer: b

explanation: i had the question on a test and got it right.

3 0
3 years ago
A gas occupying a volume of 656.0 mL at a pressure of 0.884 atm is allowed to expand at constant temperature until its pressure
7nadin3 [17]

Answer:

1.14 × 10³ mL

Explanation:

Step 1: Given data

  • Initial volume of the gas (V₁): 656.0 mL
  • Initial pressure of the gas (P₁): 0.884 atm
  • Final volume of the gas (V₂): ?
  • Final pressure of the gas (P₂): 0.510 atm

Step 2: Calculate the final volume of the gas

If we assume ideal behavior, we can calculate the final volume of the gas using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁/P₂

V₂ = 0.884 atm × 656.0 mL/0.510 atm = 1.14 × 10³ mL

5 0
3 years ago
How many grams of drug powder would you need to weigh to prepare 32ml of a suspension that should have a strength of 20mg/ml?
butalik [34]
15 grams for the drug powder
8 0
3 years ago
Read 2 more answers
What is the mass of 0.100 mole of neon? (Watch sf’s) 2.018 g 20.18 g 2.02 g 2 g
makkiz [27]

Answer:

The mass of 0.100 mole of neon is 2.018 grams.

Explanation:

As we know the formula to find mass:

                           Number of moles         =  Mass/ Molar mass

                                        0.100                = Mass/ 20.17

                                        0.100 x 20.17   = Mass

                                                        Mass=2.018 grams.

Hope it helps!

7 0
3 years ago
Examine the false statement. Weak acids always have a high pH. Select the rewording that makes the statement true. Strong acids
steposvetlana [31]

Answer:

It is not "strong acids have a low pH"  

Explanation:

I feel it should because that is a true statement but for Primavera it is wrong.

3 0
3 years ago
Read 2 more answers
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