List 4 indicators that a chemical change has probably occurred

What materials are included in the hydrophere that are not in liquid form?

The electrons that are passed to nadp at the end of the electron transfer chain were obtained from

Vinegar is commonly sold as a 5 percent by volume solution of acetic acid in water. This measurement means which of the following?

Choose the answer that best describes what kind of substance shampoo is. heterogeneous mixture or homogeneous mixture

Whats the molecular formula for HgCl, 472.2/mol?

The water level in a graduated cylinder stands at 20.0 ml before and at 26.2 ml after a 16.74 g metal sample is lowered into the cylinder. what is the density of the sample. what metal is the sample most likely to be

What are the tube feet on a star fish

What kingdom is humans in!

Propane (C3H8) has a molar mass of 132 g/mole. You started out the day with a tank containing 9071 g of propane. At the end of the day, your tank contained 7532 g of propane gas. How many moles of gas did you use?

Why decomposition of ammonium nitrate is a redox reaction?