Answer: 141 mL
Explanation:
We can use the simple equation of:
1st Concentration x 1st Volume = 2nd Concentration x 2nd Volume
Input the values in:
12.4M x (1st Volume) = (3.5M)x(500mL)
1st Volume = 141.129
The correct significant figures will make it 141. mL
Temperature of the medium wavelength
B. Lemonade, it's a mixture of sugar, lemon juice, and water
C.
A helium atom will not bond with the sodium atom because, in order to form a good ionic bond, the charges of the atoms in the molecule must cancel out. Because helium's charge is zero, it does not need to bond with anything. Helium also has a complete octet of electrons, which makes bonding impossible in the first place.
The calcium and lithium ions will not form a bond with the sodium because their charges wont cancel out the sodium's plus one charge.
The fluoride ion, however, will cancel out sodium's charge. Their charges sum up to equal zero. Fluoride will form an ionic bond with the sodium, which forms a NaF molecule.
Answer:
2-propanol
Explanation:
From the given information
2 drops of an unknown sample were said to be placed in a test tube followed by the addition of 2 ml of ethanol then gentle mixing. They then initiate a further addition of 2 drops of potassium permanganate reagent (KMNO₄) to the test tube and mixed the contents of the test tube thoroughly. After adding 2 drops of potassium permanganate reagent, the reagent oxidizes the secondary alcohols(2-propanol) to ketone(i.e acetone) and no further reaction will take place since there are no reactive C-H bonds left. The diagram attached below shows how the reaction proceeds.