Which of the following is a compound?

a. H2O

b. He

c. O₂

d. Ca

A compound consists of 65.45% C, 5.492% H, and 29.06% O on a mass basis and has a molar mass of 110 g/mol. Determine the molecular formula of the compound.

What would be the final volume (in mL) of the aqueous potassium fluoride which was prepared by dissolving 8.0 g of potassium fluoride in an appropriate volume of water to give a 0.89 M aqueous solution?

Water has many exceptional and useful properties. Which is the rarest property among compounds? Water has many exceptional and useful properties. Which is the rarest property among compounds? Solid water is less dense than liquid water.

The reaction described in part a required 3.77 l of magnesium chloride. what is the concentration of this magnesium chloride solution?

Suppose that the stomach contains 0.200l of 0.05m hcl. what mass of the antacid mg (oh) 2 is required to completely neutralize all of the hcl

Which of the following is the major advantage of using geothermal energy instead of using coal energy? Choice: You will get a brainliest! If your correct! A. More abundant than coal B. Easier to access than coal C. Releases less carbon dioxide D.

What is berylliums energy levels

What is the SI base unit of temperature? Celsius kelvin coulomb Fahrenheit

What property of an object is expressed by the measurement of an item's mass per unit volume? A. density B. viscosity C. surface tension D. buoyancy

Which type of wave cannot move without a medium in which to travel? Heat waves Light waves Sound waves Transverse waves