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Chemistry Questions
CHEMISTRY
HIGH SCHOOL
What would happen if a decomposers were absent from the forest ecosystem?
CHEMISTRY
HIGH SCHOOL
Carefully looking at an object or process
CHEMISTRY
MIDDLE SCHOOL
What do you make when you hit a rock with a hammer
CHEMISTRY
HIGH SCHOOL
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.
CHEMISTRY
HIGH SCHOOL
When might a large volume of material have little mass
CHEMISTRY
HIGH SCHOOL
The noble-gas notation for tin (Sn) will contain the symbol
CHEMISTRY
HIGH SCHOOL
Which state of matter exists at the extremely high temperatures found on stars?
CHEMISTRY
HIGH SCHOOL
Regular copyright is more restrictive than any other kind of license. true or flase
CHEMISTRY
HIGH SCHOOL
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.
CHEMISTRY
HIGH SCHOOL
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−].
CHEMISTRY
HIGH SCHOOL
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
CHEMISTRY
HIGH SCHOOL
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?
CHEMISTRY
HIGH SCHOOL
A substance that speeds up the rate of a chemical reaction is calleda. a catalyst.b. a lipid.c. a molecule.d. an element.
CHEMISTRY
MIDDLE SCHOOL
What types of atoms release nuclear radiation
CHEMISTRY
HIGH SCHOOL
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?
CHEMISTRY
HIGH SCHOOL
What can be added to an atom to cause a nonvalence electron in the atom to temporarily become a valence electron?energymassneutronselectrons
CHEMISTRY
HIGH SCHOOL
Give the names of three exothermic and 3 endothermic processes?
CHEMISTRY
HIGH SCHOOL
What gives orange juice its acidic qualities ?
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