The measurement 4.06 x 10^-5g represents:

A. 406000 g.

B. 0.0000406 g.

D. 40600000 g.

In this thermochemical reaction, what does the coefficient ½ represent?

What type of plate boundary interactions takes place when tectonic plates move apart? Convergent boundaries Divergent boundaries Subduction boundaries Transform boundaries

Explain why a sewing needle can float on the surface of water in a glass

Magnesium has three naturally occurring isotopes. The most common, magnesium-24, accounts for nearly 80% of the magnesium found in nature. The atomic numbers and mass numbers for four different atoms are shown in the table below.

What percent of the first 36 elements on the periodic table are solids at room temperature?

A reaction produces 0.755 mol of H2O. How many molecules of water are produced?

In the following reaction, 2NaCl 2Na + Cl2 sodium and chlorine are products, salts, reactants, or ions?

What is activation energy

Which combination of elements would produce an ionic compound? a. Nitrogen and carbon b. Carbon and oxygen c. Sodium and magnesium d. Potassium and sulfur e. Phosphorus and chlorine

What bond is it when two hydrogen atoms combine