Which of these are the hardest? (a) au (b) ag (c) Diamonds

Related Questions

• the overall charge of potassium bromide is zero. explain why.(Potassium charge is 1+)(bromine charge is 1-)
• How many grams of KO2 are needed to form 6.5 g of O2?
• Our best evidence and theoretical calculations indicate that the solar system began with a giant spinning system of gas and dust that scientists call __________.
• 1.) A gas occupies 3.5L at 2.5 atm pressure. What is the volume at 10 atm pressure?
• What are five things gravity can do
• What does br mean on the periodic table?
• explain how chemists can state with certainty that no one will discover an element between sulfur and chlorine?
• Which sentence about the periodic table of elements is true? * All elements in period 2 are metals . All elements in group 18 are metals. Metals are found on the left side of the periodic table. D. Metals are found on the right side of the periodic table.
• A metal ball has a density of 807.g/mL. If it has a volume of 0.0300L, calculate the mass of the object in grams and correct sig figs.
• An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1?