The unbalanced equation below shows the reaction between sodium and water. In the reaction, hydrogen gas is given off and sodium hydroxide is formed. The gas is collected and there is found to be 1.8 grams of hydrogen. What mass of sodium would have been used in this reaction?

Will mark brainliest26. which of these statements are true? (3 points)a. gases are compressibleb. gases fill their containers completelyc. the pressure of a gas is independent of the temperatured. gases have masse. gases exert pressuref. the pressure of a gas is dependent on the volumeg. gas pressure results from the collisions between gas particlesh. gases have a definite volume and shape

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

Why do cells appear different in distilled water than they do in 10% salt water?