M= moles/L covert 235.5 grams of CaCl2 using the molar mass of the compound obtaining the number of moles. Then divide the number by 2.5 L
and 
are polyatomic anions composed of two or more atoms.
<h3>What is a polyatomic anion?</h3>
A polyatomic ion is an ion composed of two or more atoms. Examples: The hydroxide cation (
) and the phosphate cation (
) are both polyatomic ions.
and are the polyatomic anions because both contain more than 1 atom.
Hence,
and are polyatomic anions composed of two or more atoms.
Learn more about the polyatomic anion here:
brainly.com/question/13544727
#SPJ1
<u><em>Answer:</em></u>
Correct option is D.
It accelerates the reaction rates of a mixture.
<u><em>Explanation:</em></u>
It is used to speed up a reaction by lowering the activation energy.Catalysis is the backbone of many industrial processes, which use chemical reactions to turn raw materials into useful products.
<u><em>Types</em></u>
There are two types of catalyst (1) Homogeneous (2) Heterogeneous
In a heterogeneous reaction, the catalyst is in a different phase from the reactants. In a homogeneous reaction, the catalyst is in the same phase as the reactants.
The molarity of the solutions are as follows:
- solution B has the highest molarity
- solutions A, D and F have the same molarity
- solutions A and C are mixed together have a lower molarity than B
- solution F and D will have the same molarity
- Volume of water required to be evaporated is 8.3 mL
<h3>What is molarity of a solution?</h3>
The molarity of a solution is the amount in moles of a substance present in a given volume of solution.
From the image of the solution given:
- solution B has the highest molarity
- solutions A, D and F have the same molarity
- when solutions A and C are mixed, the resulting solution have a lower molarity than B
- solution F and D will have the same molarity after 75 mL and 50 mL of water are added to each respectively
- the molarity of B is 12/50 = 4/16.7. Volume of water required to be evaporated = 25 - 16.7 = 8.3 mL
Therefore, the molarity of the solutions depends on the moles of substance present per given volume of solution.
Learn more about molarity at: brainly.com/question/24305514
#SPJ1
<span>c.
reactivity
this is a physical property depends on how reactive something is</span>
