A student measures the mass of a bag of sugar that says it is 1.75 kg on the bag. Below are the results of the three trials 1.65 kg 1.72 kg 1.69 kg

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

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

Substance 33°f 100°f peanut oil solid liquid margarine solid liquid chocolate chips solid liquid which conclusion fits the data in the table? a. heat chemically changes chocolate and margarine. b. all solids become liquid at 100°f. c. removing heat from a substance it to melt. d. matter may change shape when it is heated.