By what are isotopes identified? A. mass numbers

B. atomic masses

C. atomic mass units

D. average atomic masses

32) Home and Garden pH Indicators Beets Very basic solution changes from red to purple. Blueberries Blue pH 2.8-3.2. Turn red as solution becomes more acidic. Cherries Red in acidic solution; turns blue/purple in basic solution.

Use dimensional analysis to convert 4.68 g of Boron to cubic centimeters of Boron. The density of Boron is 2.34 g/cm^3

If a substance consists of only one kind of atom, it is an ... A. mixture B. element C. solution

How is carbon-14 is different from carbon-12?

Based on the activity series, which metals could X represent in the reaction below? (Note: The equation is not balanced.) X + MgSO4 - > Mg + XSO4 A) Sr B) Al C) Sn D) Au

Condension occurs in the inside of your windows in Winters, why?

How can you use Hess's law to determine a reaction's enthalpy?

7. How much energy in KJ is released when 15.0 g of steam at 100.0 degrees Celsius is condensed and then frozen to ice at 0.0 degrees Celsius?

Consider the reaction: 8H2S (g) + 4O2 (g) →8H2O (g) + S8 (g). Δ[H2S]/Δt = - 0.033M/s. Find Δ[O2]/Δt. Δ[H2O]/Δt. Δ[S8]/Δt. Find the rate of the reaction.

At room temperature and pressure what is the volume of one mole of oxygen?