Help me now When you look up into the night sky, you will usually see the moon. If you were to look at it each night for a month, the moon's shape will appear to change. The moon's appearance changes because
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. The source of the moon's light is from
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V
1. For the moon to go through a complete cycle of moon phases (new
moon to new moon), it takes about [Select ]
V. The moon moves around the
earth (Select]
During a full moon, people on earth see
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of the lit side of the moon.
During a new moon, people see
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of the moon. The phases of the
moon include what are called quarter moons. During either a 1st quarter or a 3rd quarter moon,
people on earth see
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of the lit side of the moon. The moon also
appears to grow and shrink in size. When the moon is "growing" or getting bigger, it is
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or "maxing." When the moon appears to shrink in size, it is
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Perform the following mathematical operations and report the answer to the appropriate number of significant figures 5.87998 + 3.100

Problem #3 (ch. 1, problem 15)the ideal gas law provides one way to estimate the pressure exerted by a gas on a container. the law isí‘ťí‘ť=푛푛푛푛푛푛푉푉more accurate estimates can be made with the van der waals equationí‘ťí‘ť=푛푛푛푛푛푛푉푉â’푛푛푟푟â’푞푞푛푛2푉푉2where the term nb is a correction for the volume of the molecules and the term an2/v2is a correction for molecular attractions. the values of a and b depend on the type of gas. the gas constant is r, the absolutetemperature is t, the gas volume is v, and the number of moles of gas molecules is indicated by n. if n = 1 mol of an ideal gas were confined to a volume of v = 22.41 l at a temperature of 0â°c (273.2k), it would exert a pressure of 1 atm. in these units, r = 0.0826.for chlorine gas (cl2), a = 6.49 and b = 0.0562. compare the pressure estimates given by the ideal gas law and the van der waals equation for 1 mol of cl2 in 22.41 l at 273.2 k. what is the main cause of the difference in the two pressure estimates, the molecular volume or the molecular attractions?

In an exothermic reaction the bonding energy of the product is: less than the reactants same as the reactants greater than the reactants dependent upon the presence of a catalyst