Affects populations,
Occurs when there is genetic variation
Selects organisms with certain traits to survive.
10 cubic inches
We will use Boyle's law that states that for a fixed amount of an ideal gas kept at a fixed temperature, pressure and volume are inversely proportional.
P1 V1 = P2 V2
Where
P1 is initial pressure = 5 psi
V1 is initial volume = 20 cubic inch
P2 is final pressure = 10 psi
V2 is final volume = unknown
V2 = P1,V1 / P2
V2 = 20 × 5 / 10
V2 = 100/10
V2 = 10 cubic inches
Answer:
0.485mol/kg
Explanation:
Molality is defined as the ratio of the number of moles of a solute to the kilogram of a solvent which is usually water.
Mass of NaBr = 10g
Molar mass of NaBr= 23+80=103g/mol
Mole of NaBr = mass / molar mass=10g/103g/mol= 0.097mol
Molality= Mole of a solute/ mass of solvent in kg
Mole of a solute( NaBr)= 0.097mol; mass of solvent( water in kg)= 200g. To convert to kg: 200g/1000g= 0.2kg
Molality = 0.097mol/0.2kg = 0.485mol/kg
The Newman projection gives the view of the molecule. In molecule A the torsional strain and in B steric strain are present because of the gauche methyl group.
<h3>What is a torsional strain?</h3>
The Newman projection depicts the molecules in the head-on view and uses the letters and the lines to represent the molecule. The torsional strain is because of the molecule's resistance to the twisting.
The steric strain is the Vander wall strain that is due to the forced interaction of the molecules separated by covalent bonds resulting in molecular potential energy.
The diagram for the question is attached below.
Therefore, the correct blanks are <u>torsional</u>, <u>steric</u>, and <u>gauche</u>.
Learn more about torsional strain here:
brainly.com/question/27852131
#SPJ1
Ill tell you what the big issue is nuclear power is this yeah
