Given the diagrams X, Y, and Z below:

Key

Atom of element A=0

Atom of element B=0

Which diagram or diagrams represent a mixture of

elements A and B?

Which statement correctly compares an atom of an alkali metal with an atom of the alkaline earth metal next to it on the periodic table?

Elements are - A. atoms chemically bonded. B. atoms in their purest form. C. atoms physically combined.

Glucose is stirred into water to form a solution. In this case, what are the glucose and water? A) Glucose is a solution and water is a solvent. B) Glucose is the solvent and water is the solute. C) Glucose is the solute and water is the solvent.

The reaction for the combustion of benzene is: 2C6H6 + 15O2 → 12 CO2 + 6 H2O. How moles of O2 are required to produce 130 g CO2 in the presence of excess C6H6? a. 2.36 b. 2.95 c. 3.69 d. 5.80

How are particles in crystalline soilds arranged?

Sunlight produces a spectrum of colors that includes what?

Which of the following is not a common use of gypsum? a. wallboard/drywall for homes b. a primary ingredient for toothpaste c. surgical splints and casts d. pH reducing agent for acidic soils

In which of the following are the symbol and name for the ion given correctly A. NH4+: ammonia; H+: hydride B. C2H3O2-: acetate; C2O4-: oxalite C. OH-: hydroxide; O2-: oxide D. PO3 3-: phosphate; PO4 3-: phosphite

If you add a large piece of zinc to a beaker of acid and, in a separate beaker, zinc shavings to a beaker of acid (of equal concentration/volume), the sample with the zinc shavings will react faster than the sample with the large piece.

How many atoms of oxygen are in 0.100 miles of silicon dioxide, SiO^2