Answer:
V = 4/3 * 3.1416 * (37x10-10)3
V = 2.12x10-25 cm3
d = m/V
d = 1.67x10-24 / 2.12x10-25 = 7.87 g/cm3
The difference in temperature, let's convert F to ºC:
ºC = -80-32/1.8 = -62.22 ºC
dT = -92.6 + 62.2 = -30.4 ºC
Answer:
The elements or compound that enters into a chemical reaction are reactants or reagents.
Explanation:
A reagent or reactant is, in chemistry, any substance that interacts with another in a chemical reaction that gives rise to other substances of different properties, characteristics and conformation, called reaction products or simply products. Because they are chemical compounds, the reagents can be classified according to many variables: physical-chemical properties, reactivity in chemical reactions, characteristics of the use of the reagent.
Jenny puts the ph paper and lines it up PH SCALE to find how strong the solution.
The correct answer to this question is genetic reproduction
Best Answer: <span>(a)
8.9 x 10^-7 = x^2 / 0.15-x
x = [OH-] = 0.00037 M
pOH = 3.4
pH = 14 - 3.4 = 10.6
(b)
Ka = Kw/Kb = 5.6 x 10^-10 = x^2 / 0.20-x
x = [H+] = 0.000011 M
pH = 5.0</span>
