Water has a specific heat of 4184 J / (kgK) how much energy is needed to increase the temperature os a kilogram of water 5C?

Is glass etching a chemical change

What mixes with water to make a homogeneous mixture

Which of the following statements is true? Question 1 options: Metals lose electrons to become cations. Nonmetals gain electrons to become cations. Nonmetals lose electrons to become cations. Metals gain electrons to become cations.

Determine the mole fraction of the solute if you have 3.4 grams KCl in 8.1 grams H2O A) 0.092 B) 0.420 C) 0.101 D) 0.63

What is the electrical charge of an atom that has lost an electron? A.) negative B.) zero C.) positive D.) neutral

Which process is a physical change? A. iron rusting B. milk turning to curd C. water boiling D. paper burning E. hard water staining pipes

1. How much calcium oxide would be made by the thermal decomposition of 25 grams of calcium carbonate? CaCO3 - > CaO + CO2 2. How much oxygen gas can be produced through the decomposition of potassium chlorate (KClO3) if 194.

Ethanol contains the elements carbon, hydrogen, and oxygen. When ethanol burns, it chemically reacts with oxygen gas. C2H6O + O2 ethanol oxygen gas What elements will be present in the substances that are created when ethanol burns? A.

What are the errors in the table

What makes gas turn into a liquid?