3.9 grams CaCO3
The mass of 2.0 L of water with a density of 1.00 g/ml is 2000 grams.And 1 ppm of that is 2000 / 1000000 = 0.002 grams. So just multiply by the ppm of CaCO3, giving 0.002 g * 1.95x10^3 = 3.90 grams.
Since the least accurate datum we have is 2 significant figures, the result should be rounded to 2 significant figures, giving 3.9 grams.
Answer: Group 1 Alkali Metals
Explanation: Alkali metals are good conductor of heat and electricity they also have the least amount of valence electron which is +1
Answer:
Acquired Trait
Explanation:
1.An acquired trait are the characteristics that are responsible for the production of the phenotypic characteristics that are the products of the environmental influences.
2.The acquired traits are not heritable traits that is they are not inherited by the parents from their offsprings.
3.The acquired traits are the traits which one attain from the environment.
4.For example, development of tanning on the skin due to excess sun exposure and color of the hair.