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What is the concentration of NO3- ions in a solution prepared by dissolving 25.0 g of Ca(NO3) 2 in enough water to produce 300.mL of solution?
Q5: What answer should be reported,with the correct
Q42: Gold is an example of<br>A)a compound.<br>B)an element.<br>C)a
Q44: A sample of nitrogen gas at 25°C
Q49: Which of the following is not a
Q55: A 35.6 g sample of ethanol (C<sub>2</sub>H<sub>5</sub>OH)is
Q63: The factor 10<sup>-3</sup> corresponds to which prefix?<br>A)deka<br>B)deci<br>C)milli<br>D)centi
Q93: If an object has a density of
Q95: Choose the paramagnetic species from below.<br>A)Ti<sup>4+</sup><br>B)O<br>C)Ar<br>D)All of
Q141: In Boyle's Law,<br>A)volume is inversely proportional to
Q168: According to the following reaction,what mass of