The creation of carbon monoxide is an effect. What is one cause? A. the regrouping of the atoms in table salt

B.the burning of fossil fuels

C.cleaning swimming pools

D.operating a stove

Your answer is going to be B. the burning of fossil fuels

Explanation:

This is because carbon monoxide is extremely toxic for us humans. An example of this could be pollution. Hope this helps! :)

1.484 grams.

Explanation:

At first we have to find the number of moles in 0.0350 M of 800.0 mL of Na solution. For this we will use the molarity equation as follows -

Where,

= molarity of the solution

= number of moles of Na

= volume of solution in mL

From the above equation,

= = 0.028 moles.

Now, we know that sodium carbonate dissociates as

⇒

That means 1 mole of sodium carbonate produces 2 moles of Na⁺ ion

So, the moles of sodium carbonate required for 0.028 mole of Na⁺ ion will be

= 0.014 moles.

So, the weight of sodium carbonate required = number of moles × molecular mass

= 0.014 × 105.9888 = 1.484 g

The weight of sodium carbonate required for preparing the solution mentioned in the question is 1.484 grams.