Stage in a star's evolution formed as the core of a main sequence star uses up its helium and the outer layers escape into space

1. Sara tells Michael she is 160 centimeters tall, while Michael says he is 60 inches tall. If there are 2.54 centimeters in an inch, who is taller

Given the following conditions for a gas: ti = 27°c, vi = 1,260 cm3, vf = 12.60 l. what is tf?

Which type of soil holds the least water

A 1.80 g sample of barium chloride hydrate, BaCl2 ⋅ xH2O is treated with excess sulfuric acid, forming a BaSO4 precipitate which has a mass of 1.72 g. Calculate the value of x.

Mushrooms play look like plants but you're actually fungi what is the similarities and differences between fungi and plants

Complete the matching exercise below by choosing the correct description of each bond type in aqueous solution. 1. covalent bond 2. hydrogen bond 3. electrons shared by atoms a. electrons shared by atoms b.

One mole of calcium ions has the same number of representative particles as which of the following? one mole of calcium nuclei one mole of calcium atoms 6.02 x 1023 calcium ions All of these are correct.

How is chemical symbol and chemical formula difference?

Why is a cis-1,3-disubstituted cyclohexane more stable thanits trans isomer?

How many grams of aluminum will react with 3.4 moles of chlorine