Write a balanced net ionic equation for the following reaction.

BaCl2 (aq) + H2SO4 (aq) - - > BaSO4 (s) + HCl (aq)

Which of the following is true for the reaction below? CO2 (g) + 393.5 kJ C (s) + O2 (g) It is endothermic and the ∆H = + 393.5 kJ. It is endothermic and the ∆H = - 393.5 kJ. It is exothermic and the ∆H = + 393.5 kJ.

Which best describes the law of conservation of mass? The coefficients in front of the chemicals in the reactants should be based on the physical state of the products.

Which equation, in which k is a constant, represents an inverse proportion between the variables? V = T/k F = - kx2 PV = k y = kx - 8

Scientific laws and theories cannot change. They are absolute fact. True False

The table below gives information about the nucleus of each 4 atoms Atom Number of protons Number of neutrons A 6 6 D 6 7 G 7 7 E 7 8 How many different elements are represented by the nuclei in the table? A 1 B 2 C 3 D 4

What causes dipole interactions

What do holes in volcanic rock illustrate about the conditions in which

Susan dropped a nail into a graduated cylinder filled with water. She then recorded the number of millimeters the water rose in the cylinder. Which property of the nail can be determined by the change in height of the water?

Por que un solido mantiene su forma?

Where are electrons most likely to be found in the cloud?