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How is ethanol different from carbon dioxide? A: Ethanol is made of oxygen.B: Ethanol is made of hydrogen.C: Carbon dioxide only has two atoms.D: Carbon dioxide only has one atom.
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Manny and Eva are dissolving sugar in 10 milliliters (mL) of water. They discover that more sugar dissolves in warmer water. In order for their results to be confirmed, another group must get the same results. Which list contains tools needed to confirm Manny and Evas experimental results?a) beaker, test tube, stopwatchb) microscope, glass slide, probec) beaker, hand lens, eye dropperd) graduated cylinder, thermometer, balance
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What role does blood play before cellular respiration can occur?Blood releases energy from very small molecules.Blood carries energy from the cytoplasm to a mitochondrion.Blood delivers oxygen and glucose to cells.Blood delivers carbon dioxide and water to cells.
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5. During the nifty home experiment, a playing card was placed on top of a glassand then a quarter was placed on top of the card. When the card was pushed, thequarter fell into the glass. Explain why did the quarter fall into the glass?
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which statement about the earth atmosphere is true A.recent incease in carbon dioxide levels can contribute to a long--term cooling of eath's climate. B.a recent decrease in carbon dioxide levels will incease plant growth on eath.c.in the past few decades,carbon level has been rising.D.in the past few decades,carbon level has been falling
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Which environmental conditions contribute most to the spread of bacteria?O A. cold temperatures and low humidityB. warm temperatures and low humidityoc, cold temperatures and high humidityOD. warm temperatures and high humidity
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what is NOT a function of the Digestive System
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A Virginia class nuclear submarine has an internal volume of 7.9 millionliters at a pressure of 1.0 atm. If a crewman were to open one of thehatches to the outside ocean while it was underwater (pressure = 25 atm),what be would the new volume of the air inside the submarine?
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How are dwarf galaxies designated?
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Can i get a hand?Which of the following statements is true about all cells?a- They are all part of tissues.b-They all contain chlorophyll.c-They all have a cell walld-They all have a cell membraneThankss
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Which particle has two neutrons?o 1 0 nO 2 1 Ho 4 2 HeO 1 1 H
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What is parallax?O A The distance to nearby starsOB. The apparent change in position of a nearby star when looked at from different placO C. The apparent change in position of a nearby star over timeOD. The unit of measurement that describes the change in position of a star over time
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What forces are present in this situation?An elevator is rising at a constant speed; the elevator is the object in this situation.gravitynormal, gravity, and tensiongravity and tensionnormal and tension
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3. Balance the equation below._N, (g) + __H, (g) --> __NH, (g)a. 1, 1, 1b. 1, 2, 3c. 1, 3, 2d. 3, 3, 2
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URGENT!(a) A gas' pressure is 765 torr at 296k. At what temperature will the pressure be 560. torr?(b) Which gas law is being represented above?Boyle's Law, Charle's Law, Gay-Lussac's Law?Answer !BOTH! questions.
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Do any of the atom diagrams below represent atoms of the same element?
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Does the atomic number of an element equal the number of neutrons in an atom of that element?
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Would the chlorine atom or ion be larger?
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Which hold more heat for longer period of time ? A. Air B. Water
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Antonio and Addie want to know if perfume fumes affect plant height. They place five identical bean plants in five identical light boxes. In four of the boxes, they place 200 milliliters (mL) of perfume at different distances from the plants, and they make observations twice a week for one month. Which choice best identifies the observation data that should be included in their data table?
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What is the molecular formula of a compound with an empirical formula P2O5 and a gram-molecular mass of 284 grams? And why?
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Which of the following is true and supports the Heisenberg uncertainty principle?A. quantum mechanical theory; it says that quantized energy makes the location of electrons uncertainB. quantum mechanical theory; it says that the energy of a photon is always uncertainOC. wave-particle duality theory; it states the exact location and velocity of a particle are uncertainD. wave-particle duality theory; it states when electrons behave as waves their energy is uncertain
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study the image wich shows an air mass moving into a region wich type of weather will this region most likely experience due to the incoming air mass
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What structure actively moves water through a sponge?
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