If a compound contains 8.1 g of nickel and 2.29 g of oxygen, what is the mass percent of nickel in the compound

What conditions are important in determining if it will rain or snow?

What is a housing concept that produces a high density of residential housing units, a maximum use of open spaces and greater development flexibility, which results in lower-priced homes and minimum maintenance costs?

A balloon has a volume of 10,500 liters and the tempature is 15 C. If the temp tire were - 25C what would the volume of the balloon be? A-12,194L B - 9,042L

What three factors affect the biodiversity of an ecosystem

How do you know if energy is endothermic or exothermic?

What is the molarity of a solution that has 548 grams of HCl dissolved in 1.50 l water?

Steve puts some cheddar cheese in a pan on the stove and starts to melt it. After a little while, there is a layer of oil floating on top of the cheese. From the way the cheese melted, Steve knows it is a A Element B Solid C Mixture D Pure Substance.

Which experimental feature of the MALDI-MS technique allows the separation of ions formed after the adduction of tissue molecules? A) Distance travelled by ions depends on the ion charge. B) Velocity of ions depends on the ion mass-to-charge ratio.

Which temperature is required for the cell potential to be the standard cell potential? A) - 273°C B) 100°C C) 25°C D) 0°C

1. the purpose of the aqueous solutions in a galvanic cell is to? a. provide ions to be oxidized and reduced b. provide a path for the free flow of electrons c. maintain charge balance in the cell d. correct any volume changes in the cell 2.