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Write a balanced net ionic equation for the reaction of each of the following aqueous solutions with H+ ions.
A. Sodium fluoride
B. barium hydroxide
C. Potassium Dihydrogen phosphate (KH2PO4)
If the acid dissociation constant, Ksuba, for an acid HA is 8 x 10^-4 at 25 degree C, what percent of the acid is dissociated in a 0.50 M solution of HA at 25 degree C?
What is the density of a block of marble that occupies 253 cm and has a mass of 752 g? Answer in units of g/cm
Write and balance the given chemical equation and Write a balanced equation for this reaction
A 7.75 gram sample of methane gas has a volume of 876 milliliters at a pressure of 3.42 atm. The temperature of the CH4 gas sample is. answer in C please.
When steam (hot water) is passed over iron, hydrogen gas and iron (3) oxide are formed. What weight of steam would be needed to react completely with 100.0g of iron.
(i) calculate the random match probability, RMP, for Katie (ii) based on the profile given and the attached inheritance.
Which will experience the greater effective nuclear charge, the electrons in the n=3 shell in Ar or the n=3 shell in Kr? Which will be closer to the nucleus?
A cylinder contains a mixture of hydrogen and chlorine molecules. Compare without doing any calculations
Barium chromate dissolved upon treatment with nitric acid forming an orange solution. Write a net ionic equation to represent the overall reaction that occurs.
A carboxylic acid favours the ion form (R-COO-) and its pH is higher than its pKa. In most membranes, the polar heads of the phospholipids align towards the middle of the membrane.
When relatively small amounts of magnesium burns, the fires are extinguished using commercially available dry powder. Why might this fire rekindle days later as someone tries to remove the residue with water?
How much heat is required to warm 229 g of ice from -44.7°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
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