Answers created by Meave60

• Back to user's profile
• Next
• What is the theoretical mass of water produced from ten moles of #NaHCO_3#?
  
• How do you find the vertex of a parabola in standard form?
  
• What is the slope of the line passing through the following points: # (2,-6) ; (-6,-1)#?
  
• How do you graph the line #3x-4y-8=0#?
  
• How do you find core and valence electrons?
  
• How do you graph #2x+3y>=280#?
  
• What is the distance to the horizon from this point?
  
• Which type of reaction is #AlCl_3 + 3 KOH ->Al(OH)_3+ 3 KCl#?
  
• How do you draw the lewis structure for NO2?
  
• How many grams of #K_2CrO_4# are formed per gram of #K_2CO_3# used?
  
• How do you solve the system of equations #x + 8y = 26# and #2x + y = 5#?
  
• Whats this? #x^2+16x=61#
  
• How do you graph the parabola #y = -2(x -1)^2 + 3# using vertex, intercepts and additional points?
  
• Why is francium the most reactive metal?
  
• Why is air pressure greatest at the Earth's surface?
  
• What are the substances present before a chemical reaction takes place?
  
• What is the slope of any line perpendicular to the line passing through #(0,2)# and #(3,15)#?
  
• How do you solve #.02(x+5) =8#?
  
• What must an element be in order to replace another element in a compound?
  
• How many obtuse angles can a right triangle have?
  
• For example: meniscus says the volume ofthe liquid in the cylinder is 22ml and the cylinder goes by 10. What is the volume of the liquid in the graduated cylinder? Please explain your answer
  
• Which structure forms as DNA unwinds?
  
• What is the molecular, total ionic, and net ionic equations of these reactions? #"AuBr"_3+"H"_2"CO"_3"# and #"Bi(NO"_3)_3+"BaS"#
  
• An ideal gas is made up of gas particles that have what properties?
  
• How do you graph #x-y=1 #?
  
• How do you graph #y = |-3x|# using a table of values?
  
• How do you graph the parabola #y= 2x^2 – 4x – 6# using vertex, intercepts and additional points?
  
• Suppose a news story about the Super Bowl claims "Men outnumbered women in the stadium by a ratio of 9 to 5." Haru thinks that this means there were 14 people in the stadium— 9 men and 5 women. Is this true?
  
• The equation below represents a chemical reaction that occurs in living cells. How many atoms are represented in the reactants of this equation?
  
• How do you graph #y=x^2-9#?
  
• How would you derive the ideal gas equation?
  
• Group lllB transition metals has how many electrons in d subshell?
  
• Can the gain or loss of a neutron cause transmutation?
  
• How does chemistry relate to biology?
  
• What is the perimeter of a regular pentagon with a side whose length is #x+4#?
  
• The breakdown of large molecules by the enzymatic addition of water is an example of what kind of reaction?
  
• What electromagnetic radiation has the lowest frequency?
  
• What are the atomic number and atomic mass of the element formed when 218Po emits a beta particle? What are they if the polonium emits an alpha particle?
  
• How do you convert mass to density?
  
• Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?
  
• What type of mixture scatters light and cannot be filtered easily?
  
• Which block of the periodic table is the largest?
  
• How much energy would be absorbed as heat by 75g of iron when heated from 295k to 301k? c=.46
  
• What is beta plus?
  
• How do you graph the quadratic function and identify the vertex and axis of symmetry and x intercepts for #y=1/3(x+4)(x+1)#?
  
• How do you find the slope and intercept of #y = –3x + 3#?
  
• What is the acceleration of a body that goes from #"40 m/s"# to rest over a distance of #"20/100 m"#?
  
• Write lewis symbol for #""_16"S"#?
  
• How many moles of #CO# and #O_2# are required to produce 10 moles of #CO_2# in the reaction #2CO + O_2 -> 2CO_2#?
  
• Sunlight is what part of a food web?
  
• What is the chemical secreted into the gap between neurons at a synapse called?
  
• How do you simplify #zr \cdot 2z ^ { - 4} r ^ { - 3}#?
  
• What is the difference between conifers and gymnosperms?
  
• How do you find the vertex and intercepts for #y = (1/8)(x – 5)^2 - 3#?
  
• What is an non example of both monomers and polymers?
  
• How does matter relate to mass?
  
• Do insects have a body temperature?
  
• What counts as blood?
  
• What is a homozygous dominant genotype?
  
• Explain how carbohydrates are used by living organisms.
  
• How many 27 in. boards can be cut from 3 boards that are each 7 ft. long?
  
• Which surface of a starfish is covered by tube feet?
  
• Why do cells have chloroplast and mitochondria?
  
• What is the mass of mercury that can be prepared from 1.40 g of cobalt metal in the reaction #Co(s) + HgCl_2(aq) -> CoCl_3(aq) + Hg(l)#?
  
• If 5.00 L of hydrogen gas measured at 20.0*C and 80.1 kPa is burned in an excess of oxygen, what mass under the same conditions, would be consumed?
  
• Consider the reaction when aqueous solutions of potassium chloride and ammonium phosphate are combined. What will the net ionic equation be? Specify if the states are (aq) or (s).
  
• What is the remainder of 3 divided by 4?
  
• Can you solve this?
  
• How do you find the vertex and the intercepts for #e(x) = -x² - 8x - 16#?
  
• On a number line how do you graph x+3 < -1?
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #3x - 2y = 10# and #5x + 2y = 6#?
  
• How do you solve the system #y=2x+6# and #2x-y=2# using substitution?
  
• A gas at standard temperature (0°C) has a volume of 30.50 Liters and a pressure of 931 torr.What is the volume at standard pressure ?
  
• What phases of matter are considered fluids?
  
• How do you write #y = -x - 15# in standard form?
  
• How do chemical equations connect compounds?
  
• What is the pH of a solution that is neither acidic nor basic?
  
• How do you graph the line #y = 4/5x + 3#?
  
• What is the correct interpretation of the expression-6-(-5)?
  
• A mercury atom in the ground state absorbs 20.00 electronvolts energy and is ionized by losing an electron. How much energy does this electron have after the ionization?
  
• Which contains more molecules of water: 5.00 #cm^3# of ice at 0°C or 5.00 #cm^3# of liquid water at 0.°C? How many more? What is the ratio of the numbers of molecules in these two samples?
  
• Write an equation for the synthesis of copper(I) oxide and an equation for the synthesis of copper(II) oxide both from their elements?
  
• How much heat must be removed to freeze a tray of ice cubes at 0°C if the water has a mass of 225 g?
  
• How do you convert 1000 mg to ml?
  
• Aliyah had some candy to give her four children. She first took ten pieces for herself and then evenly divided the rest among her children. Each child received two pieces. With how many pieces did she start?
  
• What maximum mass of sulphur in kilograms could be produced?
  
• Can an original element decay into a new element through beta decay?
  
• Where does a chemical bond form when a dipeptide is synthesized?
  
• How do I answer this question correctly?
  
• Chemical reaction takes place when iron dust is added into copper sulphate solution but no reaction takes place when copper dust is added into ferrous sulphate solution, why?
  
• What is the axis of symmetry and vertex for the graph #y = 9x^2 - 27x + 20#?
  
• What is the point slope form of the line that passes through (3,7) and has a slope of m=0? What about the y-intercept form?
  
• How do you graph #1.25x<=80#?
  
• To make a greeting card, Bryce used sheet 1/8 of red paper, 3/8 sheet of green paper, and 7/8 sheet of white paper. How many sheets of paper did Bryce use?
  
• 44 is 55% of what number?
  
• How do you solve the system of equations by graphing and then classify the system as consistent or inconsistent #y = -3x - 7# and #-8x + 2y = 1#?
  
• How do you graph #y=-x+2# by plotting points?
  
• Define algebra in terms that I can easily understand?
  
• What is the Ionic Bonding between Potassium and Fluorine?
  
• How do you factor #2y^2+7y+5#?
  
• Next