What is a change in heat energy when 40 g of water at 25°C is raise to 60°C

Which of the following is a testable hypothesis? a. if i brush my teeth, i will get fewer cavities than if i don't brush my teeth. b. green toothpaste tastes better than blue toothpaste or red toothpaste. c. smart, careful, healthy people always brush their teeth. d. it's wrong to not brush your teeth before you have an important conversation with someone.

According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc

The missing component to the table to the right or indicated with orange letters complete the table by filling in the corresponding numbers or symbols