What can be a visual or mathematical representation of an object?

What are non-renewable energies called?

What is the voltage of a galvanic cell made with magnesium and gold

During an experiment, an independent variable:

A vapor is which state of matter Solid Liquid Gas All of the above

How would the following solid substances be classified? The choices are metallic, ionic, or molecular. C6H12O6

Drinking water may contain a low concentration of lead ion (Pb2) due to corrosion of old lead pipes. The EPA has determined that the maximum safe level of lead ion in water is 15 ppb.

A student examines the temperature and precipitation on a given day using a thermometer and a rain gauge. The student is measuring- A. temperature only B. climate only C. wind speed only D. specific weather conditions

Atoms - 1 2 3 4 Protons - 8 10 9 8 Neutrons - 10 9 9 11 Electrons - 8 10 9 8 Which two are isotopes of one another?

A radioactive isotope has the same number of protons as its stable parent atom, but differs in its number of what?

A student experimentally obtained the density of osmium the densest element as 22.57g/cm3 the density of osmium is reported to be 22.48 g/cm3 determine the student percent error