A student needs. 575 moles of sodium chloride for an experiment. how many grams she she mass out

Which of the following would be expected to dissolve readily in the nonpolar solvent CCl4? KNO3 table salt Ca (OH) 2 grease

Select the correct answer from each drop-down menu. Describe an oxidation-reduction reaction. In an oxidation-reduction reaction, oxidation is what happens when a reactant___. Reduction occurs when a reactant ___ in the reaction.

How did the germ theory of disease become an accepted idea? The work of three scientists brought about scientific consensus. The work of two scientists brought about scientific consensus.

Identify what type of mixture powdered chalk and powdered table salt is and suggest a technique for separating their components

A rectangular steel block of dimension 100cm * 50m * 20cm has a mass of 450kg. Calculate the density.

Andrea is performing an experiment in which she needs to know when a strong acid is present. She is not sure which indicator to use, so she looks up the following table in her science textbook. Indicator pH range thymol Blue 1.2 - 2.8 phenol Red 6.

Which represents the balanced nuclear equation for the beta plus decay of C-11? Superscript 11 subscript 6 upper C right arrow superscript 11 subscript 5 upper B plus superscript 0 subscript plus 1 e.

Make a prediction for how to identify an unknown element and the chemical composition of a star

The density of HCN (hydrogen cyanide) gas at STP is 1.21g/L. What volume will 100.0g of HCN occupy at STP? A) 121 L B) 0.012 L C) 82.6 L D) none of the above

A 20.0 ml sample of 0.150 m ethylamine is titrated with 0.0981 m hcl. what is the ph after the addition of 5.0 ml of hcl? for ethylamine, pkb = 3.25