14) the formula k2s indicates that a) the potassium ion is twice the size of the sulfide ion b) sulfur and potassium form a covalent bond c) there are two potassium ions for each ion of sulfur d) there are two sulfur ions for each ion of potassium 15) fluorine, f, forms a binary ionic compound with lithium li. what is the name of this compound? a) fluorine lithide b) lithium fluoride c)lithium fluorine d) fluorine lithium 16) the standard on which the atomic mass unit is based is the mass of a a) proton b) neutron c) chlorine-35 atom d) carbon-12 atom 17)two highly reactive elements in period 2 are the metal lithium and a) metalloid arsenic b) nonmetal selenium c) nonmetal fluorine d)nonmetal krypton
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Aballet student who learns with the of his instructor is demonstrating learning.
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James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the
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Physics, 22.06.2019 10:00
Awater-filled u-tube manometer is used to measure the pressure inside a tank that contains air. the water level in the u-tube on the side that connects to the tank is 5 ft above the base of the tank. the water level in the other side of the u-tube (which is open to the atmosphere) is 2 ft above the base. determine the pressure within the tank.
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Physics, 22.06.2019 11:30
1. a camcorder has a power rating of 19 watts. if the output voltage from its battery is 7 volts, what current does it use?answer units 2. a 1.5m wire carries a 6 a current when a potential difference of 57 v is applied. what is the resistance of the wire? yourunits 3. a clothes dryer uses about 2 amps of current from a 240 volt line. how much power does it use? yourunits 4.
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14) the formula k2s indicates that a) the potassium ion is twice the size of the sulfide ion b) sulf...
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