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2 years ago

What is the complete ionic equation for

Chemistry

1 answer:

murzikaleks [220]2 years ago

5 0

Answer:

what is the net ionic equation

H2SO4(aq) + Cal2(aq) → CaSO4(s) + 2Hl(aq)?

A. H++ SO42- + Ca2+ + 21 → CaSO4 + H+ +1-

B. 2H+ + S042- + Ca2+ + 21° → Ca2+ + SO42- + 2H+ + 21

C. S042- + Ca2+ → CaSO4,

D. 2H+ + SO42- + Ca2+ + 2I- → CaSO4 + 2H+ + 2I-

cancel the spectator ion that is the ions which does not take place in the reaction

for this case is 2 H^+ and 2 i^-

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Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. How m

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Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

<h3>How to calculate the mass of solution ? </h3>

Given percentage of Pb present in the sample solution is 0.0011%

That means 0.0011 grams of Pb present in the 100g of solution.

So,

= $\frac{0.150\ \text{g Pb} \times 100\ \text{g water}}{0.0011\ \text{g of Pb}}$

= 13.6 × 10³ g water

<h3>What is Density ? </h3>

The mass per unit volume is called density. Density is represented as D or ρ.

It is expressed as:

$\rho = \frac{m}{V}$

where,

ρ = Density

m = mass of the object

V = Volume of object

Now put the value in above expression we get

$\rho = \frac{m}{V}$

$1\ g/ml = \frac{13.6 \times 10^3}{V}$

V = 13.6 × 10³ ml

Thus from the above conclusion we can say that Lead is a toxic metal that affects the central nervous system. A Pb-contaminated water sample contains 0.0011% Pb by mass. 13.6 × 10³ ml water contains 150 mg of Pb.

Learn more about the Density here: brainly.com/question/1354972

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