How many moles are in 11.82 grams of gold?

Which term is defined as a measure of the average kinetic energy of the particles in a sample of matter? (1) activation energy (3) temperature (2) potential energy (4) entropy

Mole of Al 3.26*10^24 atoms of Al

A chemist dissolves 156. mg of pure hydrobromic acid in enough water to make up 220. mL of solution. Calculate the pH of the solution. Be sure your answer has the correct number of significant digits.

A fluorine ion has 9 protons and a charge of negative one how many electrons are in an ion of fluorine

How many liters of carbon dioxide can be produced if 37.8 grams of carbon disulfide react with excess oxygen gas at 28.85 degrees Celsius and 1.02 atmospheres? CS2 (l) + 3O2 (g) yields CO2 (g) + 2SO2 (g) 2.78 liters 5.95 liters 11.9 liters 12.

Which terms are used to identify pure substances? (1) an element and a mixture (2) an element and a compound (3) a solution and a mixture (4) a solution and a compound

Which of the following polyatomic ions will form an ionic compound with two sodium ions? CO32- HCO31- NO21- NO31-

What is hybridisation

2. Seorang ibu perlu menyediakan satu hidangan kari daging dengan cepat untuk anaknya yang lapar. Langkah manakah yang berikut dapat membantu dia mencapai tujuan ini? (CL01, C2) A. Menggunakan periuk yang lebih besar B. Menambah banyak serbuk kari C.

Which of the following statements is not true? Question 4 options: When atoms have similar electronegativities, electrons are shared equally When electrons are shared equally, the molecule is called a nonpolar molecule.