Isopropyl alcohol is mixed with water to produce a 37.0% (v/v) alcohol solution. how many milliliters of each component are present in 835 ml of this solution? (assume that volumes are additive.)

-

Isopropyl alcohol = 308.95mL

Water = 526.05 mL

Explanation: -

Total volume = 835 mL

Percentage of Isopropyl alcohol = 37%

Volume of Isopropyl alcohol = 835 mL

= 308.95 mL

Since volumes are additive,

Volume of water = Total volume - Volume of Isopropyl alcohol

= 835 - 308.95

= 526.05 mL

Thus, if Isopropyl alcohol is mixed with water to produce a 37.0% (v/v) alcohol solution. 526.05 mL water and 308.95 mL isopropyl alcohol are present in 835 ml of the solution (assuming that volumes are additive).

b i think it’s a water wheel turning in a stream

answer is: c. the experiment shows that the red substance experienced a chemical change.

this is chemical change (chemical reaction), because two new substances are formed (metalig liquid and gas), the atoms are rearranged and the reaction is followed by an energy change.

this is example of chemical decomposition.

chemical decomposition (analysis) is the separation of a single chemical compound into its two or more elemental parts or to simpler compounds.  

chemical decomposition is opposite of chemical synthesis.