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It is found that 250.mL of a gas at STP has a mass of 0.700 g.What is the molar mass?
Q23: Which of the following statements is false?<br>A)A
Q34: CH<sub>4</sub>(g)+ 4Cl<sub>2</sub>(g) <span class="ql-formula" data-value="\to"><span class="katex"><span
Q43: Potassium forms an oxide containing 1 oxygen
Q66: In condensation polymerization,a common by-product is:<br>A)ethylene<br>B)alcohol<br>C)aldehyde<br>D)water<br>E)none of
Q75: Name the following: CH<sub>3 </sub>-CH<sub>2 </sub>-CH<sub>3</sub><br>A)ethane<br>B)propane<br>C)butane<br>D)pentane<br>E)hexane
Q83: Complete the following: Because real gas particles
Q100: For the reaction N<sub>2</sub>(g)+ 2H<sub>2</sub>(g) <span
Q114: A compound composed of sulfur and fluorine
Q125: Which of the following molecules has no
Q134: A chloride of rhenium contains 63.6% rhenium.What