11) Identify the number of elements and the number of atoms present in the chemical formula. NaHCO ² 4; 6
5; 6
4,5
3; 5

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.

One way that radioactive waste is treated is by burying it in repositories. the repositories are found only in states with very low populations. true or false? a. trueb. false(also i meant to put high school but it put down middle school instead)

When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device