What's the ability to undergo a chemical reaction?

How many grams of water can be cooled from 41 ∘c to 19 ∘c by the evaporation of 62 g of water? (the heat of vaporization of water in this temperature range is 2.4 kj/g. the specific heat of water is 4.18 j/g⋅k.) ?

The system that shows a decrease in entropy (disorder) is

How can cooking an egg be a chemical change

The table below shows the electronegativity values of various elements on the periodic table. electronegativities which pair of atoms would form a covalent bond?

Part a the sun produces energy via fusion. one of the fusion reactions that occurs in the sun is 411h→42he+201e how much energy in joules is released by the fusion of 2.

Balnce the following molecular equation and write net ionic equation NaOH+H2SO4-Na2SO4+H2

Describe in words the reaction represented by the equation and include a description of the composition of each kind of molecule 2h2+02=2h20

Potassium chloride, kcl, sodium sulfate, na2so4, glucose, c6h12o6, carbon dioxide, co2 and ammonium phosphate, (nh4) 3po4, are soluble in water.

Use the periodic table to select the element from the drop-down menu that has the correct relative electronegativity.

List the symbols for all the elements with electron configurations that end as follows. Each n represents an energy level.