If 54 j of heat is added to an aluminum can with a mass of 25.1 g , what is its temperature change? specific heat capacity of aluminum is 0.903 j/ g ∘ 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.

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

What is a possible quantum number set for an electron in the 3s orbital of a magnesium atom