In an AP, sum of four consecutive terms is 28 and their sum of their squares is 276. Find the four numbers.

7. The molar mass of carbon is 12.0 g/mol, of hydrogen is 1.0 g/mol, and of oxygen is 16.0 g/mol. How would you calculate the molar mass of ethanol (C2H60) ? • 9 mol * 6.02 x 10^23g • 2 x 12.0g/mol + 1 x 16.0 g/mol • 9 mol (12.0 g/mol + 1.

Assume the atomic mass of element x is 22.99 amu. A 22.42 g sample of x combines with 34.56 g of another element y to form a compound xy. Calculate the atomic mass of y

A sample may contain any or all of the following ions: Hg22+, Ba2+, Mn2+. No precipitate formed when an aqueous solution of NaCl or Na2SO4 was added to the sample solution. A precipitate formed when the sample solution was made basic with NaOH.

Which term defines the amount that a solute can dissolve into a solution? A. solute level B. solution level C. solubility level D. saturation level

How does particle movement differ in a solid, a liquid, and a gas

A spherical ball of lead has a diameter of 2.5 cm. What is the mass of the sphere if lead has a density of 11.34 g/cm3? (The volume of a sphere is (43) πr3 where r is the radius.)

If a clot were made up of a mass of proteins, what change in the proteins led to the formation of a clot?

How many types of eggs can mothers create

If a piece of metal, such as calcium or magnesium, reacts with atmospheric oxygen, would you expect the product to have a greater or lesser mass than the reacting metal?

How is the salt formed in a neutralization reaction written in a chemical reaction?