Fission reactions can get out of control without neutron moderation. The correct option among all the options that are given in the question is the fourth option or option "D". The other options in this question can be discarded. I hope that this is the answer that you were looking for and it has come to your help.
Answer:

Explanation:
Density is found by dividing the mass by the volume.

The mass of the object is 11 grams and the volume is 13 milliliters.

Substitute the values into the formula.

Divide.

Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.

The density is about <u>0.85 grams per milliliter.</u>
Glaciers were found in Africa because continents were connected and party covered with snow near the south pole long ago.
Answer:
CnH2n+2 formula
Explanation:
Alkanes have the general formula CnH2n+2, so if an alkane had 7 carbon atoms, it would have the molecular formula C7H16.
Answer:
Vegetable oil will dissolve in heptane
Isopropyl alcohol will dissolve in water
Potassium Bromide will dissolve in water
Explanation:
In chemistry, like dissolves like. This implies that polar substances will dissolve in polar solvents and nonpolar substances will dissolve in nonpolar solvents. This is so because, dissolution of a solute in a solvent involves adequate intermolecular interaction between solute and solvent which isn't possible between a polar and a nonpolar substance.