Answer:
1, C: BB, Bb, Bb, BB
2. C: Hybrid
Explanation:
1. If u do a punnet square for BB and Bb you will get: BB, Bb, Bb, Bb
B| B|
B| BB. BB
b| Bb Bb
2. You do a punnet square for BB and bb and you'll get: Bb, Bb, Bb, Bb, which means all the children are hybrids of Dominant alleles ans recessive alleles
<u>B </u> <u>B</u>
b| Bb Bb
b| Bb Bb
Answer : The percent of aluminium in 
is 
Solution :
Molar mass of Aluminium = 26.98 g/mole
Molar mass of = 342.15 g/mole
First we have to calculate the mass of Aluminium.
Mass of 2 Al atoms = 2 × 26.98 g/mole = 53.96 g/mole
Now we have to calculate the percent composition of Aluminium in
Now put all the given values in this formula, we get
Therefore, the percent of aluminium in is
There are 0.1 moles of solute in 250 mL of 0.4 M solution.
Explanation:
First, recognize that the molar concentration tells you how many moles of the solute are present in one liter of solution. In a 0.4 M solution, there are 0.4 moles of solute in every liter of solution. You can determine the number of moles of solute in 250 mL of the solution using dimensional analysis.
250mL⋅
1L/1000mL⋅
0.4mol1L
Units of liters and milliliters cancel, leaving you with a final answer in units of moles, at 0.1 mol.
B
Explanation:
I rember when I learned this in 3rd grade
