Chemistry Questions

What would happen if a decomposers were absent from the forest ecosystem?
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Carefully looking at an object or process
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What do you make when you hit a rock with a hammer
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6. Explain why the boiling point of water is a characteristic physical property, but the temperature and volume of a glass of water are not.
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When might a large volume of material have little mass
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The noble-gas notation for tin (Sn) will contain the symbol
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Which state of matter exists at the extremely high temperatures found on stars?
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Regular copyright is more restrictive than any other kind of license. true or flase
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How does litmus paper identify a base?A base turns red litmus blue.A base turns blue litmus red.A base turns orange litmus red.A base turns yellow litmus blue.
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Which correctly defines a basic solution?a. [H+] is not present.b. [H+] is equal to [OH−].c. [H+] is less than [OH−].d. [H+] is greater than [OH−].
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Which of the following materials is useful for making molds because it has a low melting point?A. wood B. metal C. clay D. wax
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The average atomic mass of oxygen is 15.9994 amu. The atomic masses of its three isotopes are as follows: O-16: 15.995 amu; O-17: 16.999 amu; O-18: 17.999 amu Which isotope is most likely to have the greatest abundance in nature?
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A substance that speeds up the rate of a chemical reaction is calleda. a catalyst.b. a lipid.c. a molecule.d. an element.
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What types of atoms release nuclear radiation
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An atom of element X has one more shell of electrons than an atom of beryllium, but it has one less valence electron than beryllium. Which element is element X?
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What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?energymassneutronselectrons
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Give the names of three exothermic and 3 endothermic processes?
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What gives orange juice its acidic qualities ?
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