Br2 (g) + H2O+SO2 (g) = HBr (aq) + H2SO4 (aq)

True or False a gas that ignites a glowing splint is oxygen

Question 2 unsaved a neutral atom has an atomic number of 20 and a mass number of 42. How many electrons does the atom have?

A 1.50-g sample of hydrated copper (II) sulfate was heated carefully until it had changed completely to anhydrous copper (II) sulfate () with a mass of 0.957 g. Determine the value of x.

The law of original horizontality explains: A) why rocks harden B) why rocks appear in layers C) why rock layers are always flat D) how sedimentary rock forms

How a convection current can enable a hawk or eagle to soar upward without flapping its wing

What is the pH of a 0.500 molar NaOH solution?

A covalent bond between two atoms occurs when the atoms

Structural formula and type of reaction for each a) 4-nonene and fluorine b) hexane and oxygen gas c) pentanol and butanoic acid d) propane and hydrogen gas

Which statement is true for a pure compound but NOT true for a pure element?

Which one is uncelluar and which is multicelluar? crab or pond organism