Which medium (the glass, water or diamond), is the most dense and how do you know?

As 0.1M HCl is added to 0.1M KOH, then pH of the basic solution A. decreases and basicity decreases B. increases and basicity decreases C. decreases and basicity increases D. increases and basicity increases

How can an atom of element be identified

Um átomo X possui 8 neutrons e seu número atômico e igual a 8. Sabendo que esse atomo é isótopos de Y, que possui número de massa 18, responda: Qual o numero de nêutrons do atomo Y?

Calculate the mass of water produced when 6.97 g of butane reacts with excess oxygen

What is the electron configuration of aluminum?

A sample of three mixed gases is at 632.0 mmhg. if the partial pressure of co2 is 124.3 mmhg and the partial pressure of n2 is 461.9 mmhg, what is the partial pressure of o2?

How do the products and reactants of a chemical change compare? The mass of the products is greater than the mass of the reactants because energy is taken in by the reaction.

All the following are characteristic properties of phosphorus. Which one is a chemical property? (a) When exposed to air, white phos - phorus will burn spontaneously, but red phosphorus will not. (b) Red phosphorus and white phos - phorus are solids.

What are the monomers of proteins called

What type of fermentation occurs in yeast?