The chemical formula of salt is NaCl. A salt packet from McDonald's contains 0.5 grams of sugar. A salt crystal from on of those fancy salt
grinder things has mass of 0.75g. How many MORE molecules of salt are
in a salt crystal compared to the McDonald's salt packet? EXPLAIN how
you got to your answer including the math you would do.

For each of the following types of reactions, write a general reaction formula in the symbolic form—for example, a + b → ab. single-displacement double-displacement synthesis decomposition

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.

May someone me with these science questions