Which of the following measurements is expressed to three significant figures? 7.30 * 10-7 km 0.007 m 7077 mg 0.070 mm

A single-element cation and a single-element anion create what type of ionic compound

Looking at the pH scale, which pair of substances would you predict will produce a solution closest to pH 7 when they are mixed together in equal amounts?

What happens to the total amount of matter and energy during a chemical reaction?

All reversible reactions will reach chemical equilibrium

Which pair of atoms will form a covalent molecule

You start with 100 grams of zinc how many moles of hydrogen will be produced

What will an atom do if it has 1 to 3 valence electrons

What is milk best described as? solution, suspension, compound, or colloid?

In any chemical reaction, the quantities that are conserved are ... A. mass and moles. B. the number of molecules and the volumes. C. the number of moles and the volumes. D. mass and number of atoms.

How many neutrons does element X have if its atomic number is 39 and its mass number is 75?