3 years ago

Which ions contribute to alkalinity

1 answer:

4 0

Answer:

The presence of calcium carbonate or other compounds such as magnesium carbonate contribute carbonate ions to the buffering system. Alkalinity is often related to hardness because the main source of alkalinity is usually from carbonate rocks (limestone) which are mostly CaCO3.

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Help what is a b c please I want help this my quiz quick

stich3 [128]

Answer:

A= sum(mass*percent abundance)

M 100

=(23.985*78.70)+(24.946*10.13)+(25.983*11.17)/100

= 24.3

2. The element is Magnesium.

3. 2412Mg,2512Mg and 2612Mg

4 0

2 years ago

How many moles of NaOH are in 27.8 mL of 0.168 M NaOH?

Alex17521 [72]

Your answer would be 0.00285 moles.

8 0

3 years ago

Select the correct answer.

almond37 [142]

Answer:

D. 5 moles

Explanation:

C3H8 + 5O2 → 4H2O + 3CO2

5 mol 3 mol

So, to make 3 mol CO2 5 mol O2 are needed.

3 0

3 years ago

When a piece of sodium carbonate reacts with dilute HCl, a gas X is produced. When gas X is passed through lime water then the s

siniylev [52]

Gas x would be carbon dioxide.

note/ acid + carbonate —> salt + water + carbon dioxide

the white precipitate would be calcium carbonate. CaCo₃

note/ this is a common eqn u need to remember.

X - CO₂ (carbón dioxide)
Y - CaCo₃ (calcium carbonate)

sodium carbonate is a basic salt

7 0

3 years ago

What kind of reaction is AgNO3+KI —> AgI+KNO3?

Scilla [17]

Answer:

Substitution reaction

5 0

2 years ago