Answer:
Explanation:
You can't award 20 points once you have awarded 5.
One
2K + Cl2 ==> 2KCl
It's True
There are 2 Ks and Cl2 has 2 atoms making up on the left.
On the right, 1 molecule of KCl has 1 Potassium and 1 Cl. But there are 2 molecules so between the two of them, there's 2 Potassiums and 2 Cl
Two
The reactant side is the Left side. Cl2 means there are 2 Cl atoms making Cl2. Answer B
Three
False: There are 2 but read below.
I really don't know how to answer that. It's not qualified enough. There are a total of 2 Chlorines on the right hand side when there are 2 molecules. I think you are intended to answer False, but don't be surprised if you get it wrong.
A I don’t know how to explain it but I just know that it’s A
Answer: C. 112 grams
Using the law of conservation of mass, you can say that the total mass of the reactant would be equal to total mass of the product. The reactant of this reaction would be 200g CaCO3(calcium carbonate). The product would be x g <span>calcium oxide(CaO) and 88g carbon dioxide(CO2). The calculation would be:
reactant = product
200g= 88g+ x
x= 200g-88g= 112g
</span>
Answer: 0.8 M
Explanation:
molarity = (moles of solute)/(liters of solution) = 1.25/1.5 = 0.8 M