In 1928, 47.5 g of a new element was isolated from 660 kg of the ore molybdenite. the percent by mass of this element in the ore was:

What is the normality of a solution containing 14.8 g of Ca (OH) ₂ in 250.0 mL?

When ironing clothes the primary method of heat transfer is conduction convection insulation or radiation

A particular atom of Carbon is found to have a 1 + charge, making it an ion. How many electrons will this carbon atom have?

Both equations I and II are balanced, but equation I is the correct way to write the balanced equation.

What is the atomic mass of ozone?

Write the Chemical formula for the conjugate base of the following Bronsted-Lowry acids. A) H2SO4 B) HPO4^2-

The heat from the bonfire is transferred to the student's hands through the process of

How many atoms are present in 0.0845 moles of tungsten (W) ?

Indicate which reactions are redox reactions. check all that apply. check all that apply. 2na (s) + cl2 (g) →2nacl (s) cd (s) + pb2 + (aq) →cd2 + (aq) + pb (s) pb (no3) 2 (aq) + 2licl (aq) →pbcl2 (s) + 2lino3 (aq) c (s) + o2 (g) →co2 (g)

If the mass of a material is 119 grams and the volume of the material is 20 cm3, what would the density of the material be?