Answer: DNA shapes how an organism grows up and the physiology of its blood, bone, and brains. DNA is thus especially important in the study of evolution . The amount of difference in DNA is a test of the difference between one species and another – and thus how closely or distantly related they are.
Answer:
Time (months) is the independent variable
Growth (measured) is the dependent variable.
Explanation:
Let y = growth
Let x = time
The result will yield a relation of the form
y = y(x), or y is a function of x.
x, the time can be controlled. The experimenter can decide how many months to conduct the experiment. It is the independent variable.
y, the growth is a response to the amount of time allowed for growth. It depends on x, therefore y is the dependent variable.
First step is to get the mass of water molecule in grams:
From the periodic table:
molar mass of hydrogen is 1
molar mass of oxygen is 16
molar mass of a water molecule = 2(1) + 16 = 18 gm
Now, to convert the gm into amu, all you have to do is multiply the gm you got by Avogadro's number as follows:
mass of water molecule = 18 x 6.22 x 10^23 = 1.1196 x 10^25 amu which is approximately 1 x 10^25 amu
Answer:
Coefficient of is more than 4
Explanation:
Oxidation:
- Balance charge: ......(1)
Reduction:
- Balance Cr:
- Balance O and H in acidic medium:
- Balance charge: .......(2)
gives balanced equation:
So coefficient of is more than 4