Tính tỷ số khối lượng của electron trong nguyên tử sắt số với khối lượng của toàn nguyên tử

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.

The organism shown is a free-living one that is anchored to the bottom of ponds and streams during one stage of its life cycle what is the common name for the group to which this organism belong

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate