Which clement is a liquid at STP?

(1) bromine (3) francium

(2) cesium (4) iodine

Two steps in a synthesis of the analgesic ibuprofen include a carbonyl condensation reaction, followed by an alkylation reaction. identify intermediates a and b in the synthesis of ibuprofen.

What was noticed about the shape of coastlines by sailors as early as the sixteenth century? The West coastline of Africa and East coastline of Australia looked like they fit together The East coastline of South America and West coastline of Africa

How many covalent bonds are there in a molecule of cyclohexane?

If the products of a reaction are Co2 and 2H20, what is known about the reactants?

a ballon is filled with 35.0 f of helum in the moring when the twmoerature is 68 f. by noon the temperature has risen to 13 f. what is the new volume of the baloon

Give an example of a model used in science that is larger than the real object and an example of model that is smaller than the real object

What happens to the conductivity of water when a base is dissolved in it

Henry Moseley organized the periodic table by A. atomic weight. B. atomic number. C. electronegativity. D. overall charge of atoms.

What happens when elements chemically combine? A.) All elements retain their original properties B.) New properties are former C.) Only metals retain their original properties D.) New elements are formed

Which element consists of positive ions immersed in a "sea" of mobile electronsa) sulfur b. nitrogen c. calcium d. chlorine?