Which elements did the Curies discover?

thorium and polonium

radium and uranium

radium and polonium

uranium and curium

How many atoms of hydrogen are in hydroxide molecule?

A tank holding 7.80 L of gas is at a pressure of 9.80 atm. If the temperature and number of gas particles do not change, what is the new pressure at a volume of 5.3 L? *Show Work* A. 14.4 atm B. 51.9 atm C. 4.22 atm D. 0.0693 atm

In cars, ethylene glycol, C2H6O2, is used as a coolant and antifreeze. A mechanic fills a radiator with 7.1 kg of ethylene glycol and 1.2 kg of water. What is the molar mass of ethylene glycol? What is the molality of the water in the solution?

Is the O-H bond and C-O bond polar or nonpolar?

How many molecules of CO2 are equivalent to 112g CO2?

What is 3 ethyl 3, 4 dimethylheptane abbreviated structural formula?

What kind of energy can be transferred

What could a scientist do to determine what era the Eocene period belongs to on the geologic timescale?

What is the name of the flower part that elevates the stigma

In atoms, electrons surround the nucleus in