Answers created by Mrs. Goldcamp

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• What quantum numbers defines a shell?
  
• Question #2c09e
  
• Question #7ca6a
  
• Which type of particle retains the identity of an element during a chemical type reaction?
  
• Question #20de6
  
• What mass of water can be produced when #"43.2 g"# of oxygen gas reacts with an excess of hydrogen gas in the reaction #"2H"_2("g") + "O"_2("g")"##rarr##"2H"_2"O"#?
  
• Question #e6001
  
• Question #d4706
  
• Question #68599
  
• What is the density of water at 22*C?
  
• Cale stops play and finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 22.7 mL, and the mass in 39.943 g. What is the density of the rock?
  
• What is the Bronsted-Lowry acid and base theory?
  
• Question #01170
  
• What is the electron configuration of the gallium ion?
  
• If a piece of aluminum is heated from 30.0°C to 50.0°C, what is the value of ∆T?
  
• How do all bases feel?
  
• What is the pH of a solution with #[OH^-] = 1*10^-4# #M#?
  
• Which element has no neutrons?
  
• How are nickel, calcium, magnesium, and antimony classified?
  
• Are atomic mass, formula mass and molar mass the same thing?
  
• I have a confusion regarding significant and rounding off data, What would be correct answer of this , if we add them: 5.00 + 0 .775 + 0.0001 = ??? What would be its correct answer??
  
• How do you balance #H_2O + SO_3 -> H_2SO_4#?
  
• Question #4012f
  
• Question #5a7e3
  
• How can you distinguish between alkanes, alkenes and alkynes?
  
• Why is milk a colloid?
  
• Question #c7238
  
• How many moles of #O_2# are required to generate 18 moles of #H_2O# in the reaction #2C_8H_18 + 25O_2 -> 16CO_2 + 18H_2O#?
  
• What is the mass in grams of 0.0015 mol of aspirin, #C_9H_8O_4#,? How many aspirin molecules are there in this 0.0015 mol sample?
  
• What are the coefficients needed to balance #Pb(NO_3)_2 + NaI -> PbI_2 + NaNO_3#?
  
• Does the ideal gas law apply to liquids or solids?
  
• Question #7be8c
  
• How do you write the empirical formula?
  
• What is the atomic number of an atom that has 6 protons, 6 neutrons, and 6 electrons?
  
• How many pints are in 5 quarts?
  
• What is 1230.932567 rounded to the nearest hundredths place?
  
• What does a cycloalkane look like?
  
• How are the relationships of elements in a group different from the relationships of elements in a period?
  
• Question #fe34c
  
• What is the molar mass of Tin (II) Phosphate?