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28 Cards in this Set
- Front
- Back
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significant figures are important because they indicate |
precision of a measurement |
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which unit is the smallest |
microgram |
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which of the following would NOT be a physical change. A. freeze water b. boil water c. melt gold d. tear aluminium e. burn gas |
E |
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stored energy |
potential energy |
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energy of motion |
kinetic energy |
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convert 105 F to C |
40.6 |
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how many cals are required to raise te,p of 150 g of golf from 25c to 195c. SH is .0308 |
785 |
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a diet has a total calorie intake of 1760 kcal. diet consists of 50% carbs, 35.5% proteins and 14.5 fats. what kcal fat |
225 |
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the heat of fusion is the amount of heat necessary to change one gram of substance from soloid to _______ |
liquid |
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a kilocalorie of heat is required to raise temp of |
100g of water by 10C |
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a primary substance which all other things are composed of are |
elements |
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a burn from steam at 100C is expected to be more severe that from boiling water at 100C because |
the steam will give off a large amount of heat as condenses |
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the atomic number of an atom is equal to the number of |
protons |
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what is mass of copper with 36 neutrons |
65 |
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valence electrons are located |
outmost energy level of atom |
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isotopes of given element |
have different mass numbers but identical number of protons |
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the modern periodic table arranged by |
increasing number of protons |
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the identity of an element is determined by its |
number of protons |
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how many significant figures in 45.030 |
five |
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the energy associated with the motion of particles is called |
heat |
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the ability to do work is |
energy |
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absolute zero is |
the coldest temp possible |
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the change of state from solid to gas is |
sublimation |
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the charge on the electron is |
negatice |
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which of the following statements concern subatomic particles |
three fundamental types, two of which are charged |
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the nucleus of an atom |
accounts for only a small amount of the total volume of an atom |
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whats correct about D |
maximum 14 electrons |
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regions of space where electrons are likely to be found are |
oribitals |
