The correct answer is 1.6 × 10¹⁰ .
The volume of ice chunk can be calculated by using the formula length × breadth × height
The length of the ice chunk given is 98 m, the breadth of the ice chunk given is 25 m and the thickness of the ice chunk given is 750 m,
= 98 × 25 × 750 × 0.000189
= 347.9 m³
= 3.831 × 10¹⁴ gal
Water in swimming pool is 24000 gal
Therefore, number of pools that can be filled = 3.831 × 10¹⁴ / 24000
= 1.596 × 10¹⁰
= 1.6 × 10¹⁰
Since hydrogen only has 1 electron it shares 1 with flourine to have a pair. It is single bonded.
All you have to do is multiply 68 miles and 3.2 hours. It will give you the answer, 217.6 mph.
68x3.2=217.6 miles per hour.
Answer:
D
Explanation:
A The calcium chloride dissolves in solution
B The mass of the solution totals 20 g
C The temperature of the solution is 35 degrees
D The solution became lighter in color
The correct answer would be that <u>the solution became lighter in color.</u>
An increase in temperature can also be considered a sign of a chemical reaction but in this case, the dissolution of calcium chloride in water is in itself exothermic.
A change in the mass of the final solution could also be considered a sign of a chemical reaction but in this case, the total mass equals the addition of the individual masses of the reactant.
The dissolution of calcium chloride in water is not enough as evidence of a chemical reaction. Dissolution can be a physical change of which, the evaporation of the water would retrieve the solute.
<em>A change in color, however, is one of the evidence to establish that a chemical reaction has occurred.</em>
The correct option is D.
The substance is a liquid. Think about water :)
