Some substances bout not others can cross the (blank) membrane of a cell

Which of the following best explains why the end of a spoon sticking out of a cup of hot water also gets hot? question 7 options: the heat from the hot water is conducted through the spoon handle the hot water heats the air surrounding the upper part of the spoon. the hot water causes a physical change in the spoon handle. the hot water causes a chemical reaction to take place in the spoon.

Layers of rock containing fossils, like the layers illustrated here, are most likely composed of rocks.

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution