Which of these equations represents a displacement reaction?

Copper + oxygen → copper oxide

Zinc + copper sulfate → zinc sulfate + copper

Sodium + water → sodium hydroxide + water

Which are examples of science rather than pseudoscience? Check all that apply. People can get rid of hiccups by holding their breath. The US surgeon general's 1964 report declared that smoking cigarettes was linked to cancer.

Chemical formula of tetraphosphurus octasulfide

What is the mass of nitrogen in a 10g sample of pure ammonium nitrate?

How do we know that caramelizing sugar is a chemical change? it involves dissolving sugar in water. it changes the state of sugar from a solid to a liquid. it separates sugar from a sugar solution. it changes the sugar's color.

when light waves hit ice most of the bounce off and radiate back into space because of this, it can besaid be said that ice is a (n) ... surface

A small cubical furnace 50 by 50 by 50 cm on the inside is constructed of fireclay brick [k = 1.04 W/m. degree C] with a wall thickness of 10 cm. The inside of the furnace is maintained at 500 degree C, and the outside is maintained at 50 degree C.

What is the molar mass of Al2 (SO4) 3?150.03 g/mol 278.03 g/mol 342.17 g/mol 450.09 g/mol

1. Which of the following species determines the chemical properties of an atom? A. Electron B. Neutron C. Nucleus D. Proton 2. The following glasswares are used to measure the volume of liquids except A. graduated beaker B. pipette C. test tube D.

A sample of a certain material has a mass of 2.03 x 10-3 g. calculate the volume of the sample, given the density is 9.133 x 10-1 g/cm3.

What happens to a reactant molecules when forming product molecules