Answers edited by Meave60
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Question #de62a
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Question #9206b
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What is #Delta"E"# for the formation of gaseous sodium and chloride ions from gaseous sodium and chlorine atoms?
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Why do chemical equations need to be balanced?
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How do you calculate mass using density and volume?
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Question #af23d
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Question #b0544
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What are some examples of precipitation?
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What is the purpose of the distributive property?
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What is the ionic compound containing beryllium and oxygen?
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Which of the entities have higher atomic radius? a) Ca, Ca2+ b) S, S2-. Please explain it?
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Question #9d392
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What are the oxidation states of the iodine in #HIO_4# and #HIO_3# ?
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Question #68e98
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Question #32c5c
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What is a net ionic equation?
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How do you predict the products of #"H"_2"SO"_4" + NaOH"#?
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What do cells in the CCS do?
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Can a cross between a homozygous red flowering plant and a homozygous white flowering plant produce a pink flowering plant?
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Question #1d41c
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An isotope with a #1^+# charge has #107# electrons and #159# neutrons. What is its mass number? What is the element?
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Question #61c7e
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What do cells in the CCS do?
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How do you solve #y-y_1=m(x-x_1)# for m?
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What's the solubility (in grams per liter) of #"LaF"_3# in pure water?
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In what process do animals use glucose and oxygen?
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What is the oxidation state of chromium in the dichromate ion, #"Cr"_2"O"_7^(2-)#?
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2 C8H18(l) + 25 O2(g) #-># 16 CO2(g) + 18 H2O(g)
If you burned one gallon of gas (C8H18) (approximately 4000 grams), how many liters of carbon dioxide would be produced at a temperature of 21.0°C and a pressure of 1.00 atm?
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How many moles of cobalt(II) cyanide are in a #"2.05 g"# sample?
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Question #22229
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Question #12855
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Question #25845
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How do you simplify #((a^3b^4)/(a^2b))^3# using the exponential properties?
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What are isotopes?
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What is the percent difference between the acceleration due to gravity at sea level and at the uppermost peak of Mount Everest?
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Which of the following substances are soluble in water? #"Fe"#, #"Pb"#, #"N"_2"#, and #"NO"#
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How do you solve #4x^2=52# solve using the square root property?
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How does Boyle's law relate to breathing?
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Question #aec3a
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I have conducted a calorimetry experiment on the latent fusion heat of ice. Even when the procedure is followed throughly, I keep getting a value that is far off from the actual value. And this continues even after the experiment is repeated, why?
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How much energy will be required to heat a #"1.0 kg"# mass of water from #25^@"C"# to #99^@"C"#?
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Question #2b0e3
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What is the molarity of the chloride ions in a #"0.230 M NaCl"# solution?
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Question #bb918
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Question #69999
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What was the chance that an alpha particle bounced directly back at #"180"^@"# in Ruthorford's metal foil experiments?
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What is the ground state electron configuration for aluminum?
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Question #1dda3
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Question #8dabc
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Question #95391
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What's the difference between a formula unit and a molecule?
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What does velocity mean in motions graphs?
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An 18 karat gold bracelet has a mass of 56.18 g. 1 troy ounce of pure gold is 31.03 g. What is the value of the bracelet in US dollars?
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The temperature measured in an experiment was #"64.9"^@"C"#. The theoretical temperature is #"55.0"^@"C"#. What is the percent error?
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Question #a71e5
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How would you order the number from least to greatest: #\frac{\sqrt{6}}{2}, \frac{61}{50}, \sqrt{1.5}, \frac{16}{13}#?
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What are the ways in which the mass of a body can be determined without using a laboratory balance?
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Question #a13a9
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A sample of rhenium (Re) is #"37.40% Re-185"# and #"62.60% Re-187"#. What are the atomic masses of these isotopes? The sum of the masses of the two isotopes is #"371.9087 u"#. Find the mass of the individual isotopes.
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What is the mass of a #"7% HCl"# solution in which #"45.0 HCl"# has been dissolved?
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Question #b5e26
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