Chemistry Questions

The _______ receives digested food components and stores the glucose to be released into the blood stream for future use.A. liverB. stomachC. small intestineD. large intestine
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Gross Domestic Product includes consumption, net exports, _____, and _____. investments, government expenses intermediate goods, services last year's products, this year's products
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2H2 + O2 ---> 2H2OHow many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?A.) 6.8 molB.) 13.7 molC.) 54.8 molD.) 109.6 mol
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The scientific notation 2 x 10-2 has what value? 0.020.0020.20.0002
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A substance conducts an electric current when it is in the liquid state. What would the conductivity of the substance in solid form indicate about the type of bond in the substance?A.) If the solid is conductive, the bonds are ionic.B.) If the solid is not conductive, the bonds are covalent.C.) If the solid is conductive, the bonds are metallic.D.) If the solid is not conductive, the bonds are metallic.
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The curved top surface of a liquid column
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Which tiny, round “factory” puts together protein and is often found in the endoplasmic reticulum?A.chromosomeB.chloroplastC.Golgi bodyD.ribosome
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What happens when you compress a gas
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Mr. Greenjeans wants to know which fertilizer helps grow the biggest pumpkins. He plants three pumpkin seeds of the same variety and then uses three different types of fertilizer on the three seeds. The seeds receive the same amount of fertilizer, water and sunlight. Mr. Greenjeans monitors the pumpkin seeds' growth for three months. How could Mr. Greenjeans improve his experiment?A) Mr. Greenjeans needs a control group for comparison. B) Mr. Greenjeans should use corn and radish seeds as a comparison. C) Mr. Greenjeans should use three different types of pumpkin seeds. D) Mr. Greenjeans probably should monitor the pumpkins for a longer period of time.
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The orderly geometric arrangement of atoms is called a crystalline solid. a. Trueb. False
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A sample of calcium oxide (CaO) has a mass of 2.80 g. The molar mass of CaO is 56.08 g/mol. How many moles of CaO does this sample contain?
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Which of the following is true about bases?a. They help to build up cells.b. They release hydroxide ions in solution.c. They tend to decrease the pH of a solution.d. They have a sharp or sour taste. explain
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All organic molecules have what element in common
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The job of the human heart is to circulate blood through all of the body's arteries, capillaries, and veins. The job of the human lungs is to supply the small amount of blood in them with oxygen. The interaction of these two parts of the human body results in a system that A. removes old blood from the body. B. circulates oxygen-filled blood throughout the body. C. turns the protein in blood into food energy for the digestive system. D. breaks down food energy, and turns it into heat.
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Which one of the following chemicals does the body generate during regular exercise? A. Adrenaline B. Estrogen C. Endorphins D. Sodium chloride
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The Gulf Stream is an example of a(n) ____________ current.a.surfacec.deepb.Coriolis effectd.Antarctic
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Could volume by displacement be used to determine the volume of a lump of rock salt? Explain would be nice
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2C6H14 + ______ O2 → 12CO2 + 14H2O What is the coefficient of O2 when the equation is completely balanced using the smallest whole-number coefficients?
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