Answer: B is a gas because its volume is less than the volume of the containers.
Explanation: hope this help bye
The chemical equations representing the reaction between the given combinations are:
1. .This reaction is a precipitation reaction as one of the product formed, CaSO is a solid.
2. In this reaction all the products are aqueous or soluble in water.
3.. Both the products of this reaction are soluble in water.
Hence, the correct option would be 1. CaS +
Cause the catepillar to grow and eventually form into a butterfly
Explanation:
He used just the right amount of matter in water to get it to evaporate at a normal temperature and to condense into clouds for rain.
Answer is: new concentration is 0,168 mg/mL.
d(solution) = 0,842 g/L.
V(solution) = 0,2 mL = 0,0002 L.
V(water) = 0,8 mL.
V₁(solution) = V(solution) + V(water).
V₁(solution) = 0,8 mL + 0,2 mL = 1 mL.
m(solution) = 0,0002 L · 0,842 g/L · 1000.
m(solution) = 0,168 mg.
d₁(solution) = m(solution) / V₁(solution).
d₁(solution) = 0,168 mg/mL.