1. Science
    2. Two liquids are poured into two cups. Cup A contains a colorless, odorless liquid. Cup B contains a colorless liquid with a strong odor. An ice cube floats in Cup A but sinks in Cup B. When heated, the liquid in Cup B boils at a much lower temperature than the liquid in Cup...
    In a reaction 6.56g of Zinc reacted with excess dilute Hydrochloric acid Calculate the volume of hydrogen evolved at STP
  3. Science help
    Which of the following is NOT a way to test your hypothesis? A.) observe the natural world. B.) make a guess.*** C.) perform an experiment D.) make and use a model *** Means I chose this.
  4. science
    describe the relationship among energy absorption, heat energy, and temperature
  5. Science
    Please help Me With These Questions 1.what is one difference between the scientific theory and scientific law 2. what are two similarities a scientific theory and scientific law 3. Sam noticed every time she rolled a ball on a flat surface it did not stop unless she applied a ...
  6. Science
    The density of a loaf of bread with a mass of 500 g and a volume of 2500 cm3.
  7. Science
    Prove that the maximum horizontal range is four times the maximum height attend by a projectile when fire at an inclination so as to have maximum horizontal range
  8. science
    What is the cell structure involved photosynthesis
  9. Science
    I need to know how a refrigerator works to come up with an example. Please keep it simple and easy to understand. or an example explaining how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your ...
  10. Science
    I am trying to come up with an example but i need to know how a refrigerator works. Please keep it simple. or example explaining how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life?
  11. Science
    why would a DNA structure in which each base type could form hydrogen bonds with any of the other 3 base types not produce a molecule that could be replicated easily?.
  12. Science
    The formula wt of h2so4 is98bthe wt of the acid in 400ml of 0.1M solution is
  13. Science
    What is the relationship between energy and work?
  14. Science
    How do you identify energy may be dissipated in such an energy conversion?
  15. science
    How is this equation balanced Fe2o3+co
  16. English
    I wrote this sentences. Could you check them. Thanks 1. If you were interested, you could take another course. 2. If I were you, I’d study Norse tales. 3. If he really wanted to go into science, he would take biology and chemistry. 4. I wouldn’t have suggested he take ...
  17. Data Science
    I've been accepted into a General Physics degree programme in my country.If I'm willing to start my career as a data scientist,what subjects should I study at the university? Would the knowledge of programming languages will be an extra qualification or is that compulsory? I ...
  18. Science
    Can you see organelles of plants using a simple microscope? If yes, what is it?
  19. science
  20. Science
    Honestly reporting experimental findings is an example of using good? I really need help please
  22. science
    How should I prepare for a field study and what should I do if there's an accident? I just need help answering the last part because I cant seem to find a answer anywhere.
  23. Science
    Which of the following describes a feed back in the oven? A Setting the temperature B Burning gas releases heat C a thermostat monitors the temperature and increases the gas flow when gas falls to low D a cake is baked. My awnser so far is A.
  24. Earth Science
    Which aquartic biome would cypress, cedar, and dogwood trees, and submerged floating plants ne located? Lakes and Ponds Streams and RIvers Swamps Freshwater Marsh Saltwater Marsh Intertidal Zone
  25. Science
    2. Which of the following describes a relationship between science and society? A: Scientific discoveries can impact human life; therefore, society must remain scientifically literate. B: Scientific discoveries rarely impact human life; therefore, it is not necessary for ...
  26. Science
    I'm doing an assignment and one of the questions is explain the reaction using the Big Idea of Energy. I don't know how to answer it please help!
  27. science
    I'm doing an assignment on burning magnesium and one of the questions is explain the reaction using the Big Idea of Energy. What does this mean?
  28. science
    what is the defenition of benifit SCIENCE wise. i need answers quickly!!!
  29. Science
    Can someone help me come up with a way the lithosphere and cryosphere interacts? I already have permafrost.
  30. Science
    What resources should a scientist use to research water pollution?
  31. Science
    PLEASE DO NOT THINK I AM CHEATING AND ASKING FOR ANSWERS. DO NOT LECTURE ME, I AM SIMPLY ASKING WHAT IN THE HELL THIS MEANS: Collecting and Analyzing Data There are two types of observations: qualitative and quantitative. Qualitative observations use words to describe what is ...
  32. Earth space science
    During which step in the Can Crush Lab did water vapor condense inside the can? A. The can was filled nearly to the top with water. B. The can was placed on the hot stove burner for several minutes. C. The can was removed from the hot stove burner. D. The can was placed upside...
  33. Science
    A researcher determined the amount of electrical energy was entering a lamp and the amount of light energy given off my the lamp. The amount of light energy was less than the amount of electrical energy. How can this be explained?
  34. Physical Science, Science
    The barometric pressure in Breckenridge, Colorado (elevation 9600 feet) is 580 mm Hg. How many atmospheres is this? How do we find the answer for this?
  35. science
    20 gm of an acid furnishes 0.5 mole or HNO3+ iONS in its aq solution .the value of 1 eqyivalent if the acid will be
  36. Science
    For the reaction IO3� + 5I� + 6H+ 3I2 + 3H2O the rate of disappearance of I� at a particular time and concentration is 5.0 x 10-3 M s-1. What is the rate of appearance of I2
  37. science
    If you had to study something that you could not see, would that motivate or frustrate you? Explain your reasoning.
  38. science
    Seeing is believing. Do you agree or disagree with the statement? Give an example of phase changes to support your view. please help
  39. Science
    What volume of co2 has is produced when 20gm of 20/100 pure caco3 is completely heated
  40. science
    Ammonia, NH3, can be made by reacting nitrogen and hydrogen and the equation is N2 + 3H2 --> 2NH3 How many moles of NH3 can be made if 12 moles of H2 react with enough N2? mol
  41. science
    How do you think adding other substances to the water would affect its heating curve? please help
  42. science
    An older brother pours all the water out of a small cup on his little brother's head. Later, the little brother pours all the water out of a large pot on the older brother's head. Which of the answer choices correctly analyzes the pressure exerted by the water in the scenario...
  43. science
    Which of the answer choices is a true statement about the properties of an enclosed gas? (Select all that apply) if a gas pressure remains constant, then increasing the temperature of a gas will increase its volume if the gas temperature remains constant, then increasing the ...
  44. science
    The knowledge produced by science builds on old ideas and is constantly changing. State whether you agree or disagree with this statement. Explain why please help
  45. science
    What causes pollution and increases global warming?
  46. science
    which of the following reasons best explains why scientists need a standard measurement system A)scientist would not be able to communicate at all without one B)if they did not use one data could be misinterpreted (My answer) C)experiments could not be completed without one D)...
  47. Science
    A car travels 4km in 3 minutes.find the speed of car in cm-1
  48. science-chemistry
    Predict and draw the structure of the product of the reaction of the following substrates with the given reducing agent. 2-hexanone mixed with hexanoic acid with (i) NaBH4 (ii) LiAlH4
  49. science
    A coach tells his little league players that hitting a 0.275 batting average, within 7% percentage error, means that they had a really great season. Seven year old Tommy ended the season hitting a 0.258 batting average. According to his coach, did he have a great season?
  50. science
    In which of the following phase transitions is energy released? liquid to solid solid to gas liquid to gas solid to liquid please help
  51. science
    Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the surroundings energy ...
  52. science
    Molten lava coming out of a Hawaiian volcano cools down and forms rock. Which statement best describes the flow of energy in the scenario?  energy moves from lava to the surroundings energy moves from the surroundings to the lava energy stays within the surroundings energy ...
  53. science
    A scoop of ice cream is placed on top of a warm piece of pie in a bowl. Which statements about the scenario are true? (Select all that apply.) the pies energy will destroy a portion of the ice creams energy the overall amount of energy in the bowl will neither increase nor ...
  54. science
    a hydrauli press has a ram of 30 cm diameter and plunger of 4.5cm diameter. find the the weight lifted by the hydraulic press when the force applied at the plunger is 500N
  55. Science
    I have two questions and I have answers for them and I don't know if there right or not. The ones that have stars by the answers is the answers I picked. 1. Complete this sentence. If volume remains the same while the mass of a substance ________, the density of the substance ...
  56. Physical Science
    How will you prepare a laboratory procedure to verify the validity of the hypothesis? Give example.
  57. science
    Which statements best describe how the properties of gases and plasmas differ? (Select all that apply). The particles of plasmas have a higher kinetic energy than the particles of gases. Gas particles are charged while plasma particles are uncharged. Plasma particles are ...
  58. science
    liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter. please help
  59. science
    liquid water has a constant density. Do you agree or disagree with this statement? Why or why not? Be sure to support your argument by using what you have learned about the states and motion of matter.
    why does a fly experience greater acceleration when it collids with a fast moving bus
  61. Science
    Paul road his bike from the bottom of his street to his friend’s house at the top of the hill on his street. He knew his PE was 5,000 J and ME was 25,000 J but wanted to find out his KE. What is Paul’s KE energy on his bike ride to his friend’s house? Ans= 30,000?
  62. science
    List your own example of turning an observation into a hypothesis. Be sure to list all five steps: observation, explanation, test (independent variable), prediction (dependent variable), and hypothesis. please help
  63. science
    Observation The trash smells. Explanation Decaying biological material causes the trash to smell. Test (independent variable) Add food scraps to one trash can along with other materials, such as plastic, cardboard, paper, and tin. To a second trash can, add only non-food ...
  64. Honors science
    a student wanted to investigate whether or not the temperature of the water would affect the solubility of sugar she had three glasses of water each with 200 ml of water in them one was at 10 c the second a 25c and the third one was at 40 c she found that the warmer water ...
  65. Science Help Practice
    Calculate the speed of an 90,000 kg airplane with a kinetic energy of one billion Joules. What is the mass of a car that has a kinetic energy if 4,320,000 J moving at 23 m/s? My answer to number 1= 149.07 second one- not sure. I looked up the internet for formulas on finding ...
  66. Science
    Let vector A=i cap A cosx+j cap A sinx , be any vector. Another vector B which is perpendicular to A can be expressed as?
  67. Science
    A Space Traveller determine the radius of a Planet to be half that of the earth after landing on its surface he find the acceleration due to gravity to be twice of the surface of the earth find the ratio of the mass of a planet to the earth
  68. Science
    A 50-kg block is being pulled up a 30.0^ slope by force of 250N which is parallel to the slope, but the block does not slide up the slope. What is the minimum value of the coefficient of static friction required for this to happen?
  69. science
    a body of moss4kg moving with a uniform velocity30m/s is brought to rest in 6sec . find the force required to stop body.
  70. science
    At a pressure 43 kPa, the gas in a cylinder has a volume of 11 liters. Assuming temperature remains the same, if the volume of the gas is decreased to 5 liters, what is the new pressure? kPa Im guessing it 58 or 77x10^3
  71. Science
    how many times does the sun appear to rise in a week? A) one B) Five C) seven D) not there I think it's c) seven. Plz check. Thank you!
  72. Science
    Two forces of 20 N and 5 N are acting at an angle of 120 degree between them. Find the resultant force in magnitude and direction ?
  73. Science
    Clay is a plastic material does this imply that it is a polymer
  74. Political science
    What is the advantages of democracy government and non democracy government
  75. Science - Organic Compounds
    What elements are the most abundant in living organisms?
  76. science
    What physical property is changed when a waitress pours coffee from a pot into four mugs? density color volume temperature
  77. science
    Baking soda is mixed with water, and no bubbles are produced. When baking soda is mixed with vinegar, it bubbles and foams rapidly. What chemical property of baking soda is shown in the scenario? 1)reactivity 2)boiling point 3)flamibility 4)color change (select all that apply)
  78. science
    Which process is an example of a chemical change? A metal railing rusting in damp weather alcohol evaporating from a cotton swab steam rising from a boiling pot of soup a piece of wood shrinking as it dries out
  79. science
    Which process is an example of a chemical change? drying clothes in the dryer chopping a tree activating a glow stick heating a cup of tea
  80. science
    Imagine yourself making a nice cup of tea on a cold winter day. You begin by boiling some water in a kettle. Next, you add the steaming liquid to your cup. Then, you open a tea bag and repeatedly dunk it into the water. You pour a dash of milk and drop a few sugar cubes into ...
  81. Science
    Unscrsmble this word atsetlectoicnp
  82. Science
    After the experiment, scientists organize and __ the data. (The second letter is an n and the last letter is an e.)
  83. science
    which items would still be classified in the same way? Which items would be classified differently? • atoms     • elements     • compounds     • molecules     • matter please help
  84. science
    dose the flame of a gas stove emit light
  85. Science
    A particle start moving with acceleration 2m/s^2.Distance covered by it in 5th half sec is?
  86. Science
    A body is projected vertically upward with a speed of 40 m/s. Find the distance travelled by the body in the last sec of the upward journey taking g = 9.8m/s
  87. Science
    WHat names do we give to portion of the earth form (a) our gaseous environment, (b) our liquid environment, and (c) our solid environment. My answers a. greenhouse gases b. ocean c. land
  88. Maths,geography nd science
    What are four factors that cause each of the social issues
  89. Science
    Would do you think would happen if blood entering the heart mixed with blood leaving the heart.
  90. science
    Why is filter paper a poor material on which to powder a solid before introducing it into a melting tube?
  91. science
    2Zn+O2=2ZnO. What type of chemical reaction is it
  92. science
    a stone is thrown vertically upward,went up 98m and came down.How long was it in air?
  93. science
    A stone is dropped from a height of 45 meter . what will be the distance travelled by it during the last second of its motion ? take acceleration as g=9.8m/s^2
  94. Science I reallllllyyy need help!!!!
    which of the following describes scientific inquiry? (1 point) a statement that describes what scientists expect to happen in an experiment facts, figures, and other evidence gathered through observation the diverse ways in which scientists study the natural world a well-...
  95. Science
    A Stone of 5 kg falls from the top of a cliff 50 m high and buries 1m in sand. Find the average resistance offered by the way sand and the time taken to penetrate.
  96. Computer Science
    Calculate: This function must be called from main() from within the loop. For each month, calculate the amount of interest to be paid that month (adding this into balance before calculating minimum payment), total of interest paid, amount of minimum payment due for the month...
  97. science
    Different between voltery and in voltary muscles
  98. science
    farm machine has a velocity ratio of 12 and an actual mechanical advantage of 10.calculate the work input of the machine if it raises an 80kg load by 6m?
  99. Science
    Which is hotter 50 mls of 75 dgrees celcius water or 200 mls of 70 degree celcius water and why?
  100. Earth Science (check answers)
    1. The mass number of an atom is obtained by totaling the number of_____and____. a. electrons and protons b. electron and neutrons c.protons and neutrons d.neutrons and isotopes Is it B? 2. Which of the following statements about the chemical combinations of atoms to form ...
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