A concentrated solution has:

a) more particles per litre than a dilute one

b) bless particles per litre than a dilute one

What is the answer? a or b?

Describe the reaction of a weak acid and a strong base. In general, what will the final pH be when the reaction between equal moles of a weak acid and a strong base is complete?

The chemical formula for glucose is C6H12O6. Therefore, four molecules of glucose will have

Bromine (Br2) is produced by reacting sea water with chlorine (Cl2) by the following reaction. What mass of Cl2 (in kg) is needed to produce 1.0 kg of Br2?

What mass of CO2 gas occupies a 32.5 dm cubed flask at 32°C in 104.7 KPA pressure

Suppose the half-life of an isotope is 10 years. After how many years will half of this isotope have decayed into its daughter elements? 5 Years 10 years 20 years

Which one of the following is a redox reaction?. 2 Na (g) + Cl2 (g) 2 NaCl (s) A. K2Cr2O7 (aq) + 2 KOH (aq) 2 K2CrO4 (aq) + H2O (l) B. H2O (l) H + (aq) + OH - (aq) C. Na2CO3 (s) + 2 HCl (aq) 2 NaCl (aq) + CO2 (g) + H2O (l) D.

Name 4 common chemical properties of matter

Why is photosynthesis so important to plants, and can't animals use it?

One way the government of Kim Jong-il controls the lives of the people who live in North Korea is by a. requiring every citizen to vote. b. controlling information its people receive from the outside world. c. enforcing free trade with other nations.

Give reasons 1) copper utensils and sheets become blackish after some days