Mary sue is making caramel ice cream. in the first part of the process, she combines a cup of sugar and a cup of water in a saucepan. she cooks the mixture over medium heat until the sugar melts and browns to a light amber color. then she adds the same amount of water to the mixture along with a cup and a half of cream and milk. which part of the preparation indicated a chemical change? a. adding cream and milk to the mixture b. mixing the sugar with water c. melting the sugar d. sugar changes from white to a light amber color

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.

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution