Which of the following statements are not true: (you can pick more then one) a)protons have a tendency to want to repel each other in the nucleus; therefore, strong nuclear forces are very important in keeping the nucleus intact. b)protons and neutrons naturally repel each other; therefore, the atomic nucleus is usually at the verge of splitting apart. c)the nucleus is held together by binding energy between protons and electrons d)protons and electrons naturally repel each other; therefore, protons stay in the nucleus

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?