When a 215 g sample of aluminum (Al) absorbs 8610 J of energy, its temperature increases from 35∘C to 115∘C. Find the specific heat of aluminum.

Acylinder is filled with 2.00 moles of nitrogen, 3.00 moles of argon and 5.00 moles of helium. if the gas mixture is at stp, what is the partial pressure of the argon

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.