Consider an atom of gold in which the nucleus contains 79 protons and 118 neutrons. what is its atomic number and atomic mass number?

What kind of bond is created by a weak electrical attraction between polar molecules

2. How many grams of sucrose would be needed to prepare 100. mL of a solution of 0.10 M sucrose? Show your calculations.

Cu + 2AgNO3 + Cu (NO3) 2 + 2Ag How many grams of Cu react with 105.2 g of Ag?

How are the salt ducts an adaptation to the iguanas' environment?

A change in the nucleus of an atom that converts the atom from one element to another element is called (1) combustion (3) polymerization (2) neutralization (4) transmutation

A chemist determined by measurements that. 040 moles of gold participated in a chemical reaction. calculate the mass of gold that participated in the chemical reaction. round your answer to significant digits.

10) A screwdriver has the density of 5.5 grams per cubic centimeter. It also has the mass of 2.3 grams. What is the screwdriver's volume?

A chemist weighed out 20.7 g of sodium. Calculate the number of moles of sodium she weighed out

If 1.00 mol of argon is placed in a 0.500-L container at 20.0 ∘C, what is the difference between the ideal pressure (as predicted by the ideal gas law) and the real pressure (as predicted by the van der Waals equation) ? For argon, a=1.

Part 2: Finding Speed and Height Using Energy Directions: Use the KE and GPE equations to solve for speed or height depending on the situation. 1. A 1,000-kg car has 50,000 joules of kinetic energy. What is its speed? 2.