General Chemistry Answers

how many moles of ethanol are produced from 1.50 moles of glucose

Which electronic configuration and position in the periodic table of elements corresponds to the potassium K atom (19)? A) [Ar]4s¹, Group I, Period 4 B) [Ar]4s¹, Group IV, Period 1 C) [Kr]5s¹, Group I, Period 5, D) [Kr]5s¹, Group V, Period 1

With the increase of the atomic number within the same period, the atomic radius of the elements decreases because?

Based on Gultberg and Wagge's law for the speed of chemical reactions at constant temperatures, when the concentration of CO increases while the concentration of NO₂ is kept constant in the reaction CO (g) + NO₂ (g) -> CO₂ (g) + NO (g) the speed of the reaction?

How many grams of magnesium oxide are obtained during the combustion of 2 g of magnesium in fasting according to the reaction 2Mg (s) + O₂ (g) -> 2MgO (s). Ar(Mg) = 24.3; Ar(O) = 16.

In which of the following series, the three metals in their respective oxides have a valence of two (II)? A) CuO, NO, PbO₂ B) Cu₂O, PbO, NO C) PbO, Cu₂O, CuO D) CuO, CaO, PbO

What is the mass of the solvent (water) in the NA₂CO₃ solution which has a concentration of 1 mol/dm³ and a density of 1,098 g/cm³. Ar(Na)=23; Ar(C)=12; Ar(O)=16.

Assume that a domestic LP gas cylinder contains 12.5 kg of propane (C3Hg). If the LP gas is completely burned with oxygen then carbon dioxide and water C3H8 + O2 CO2 + H20 (this equation is not in equilibrium. Equilibrium for calculations) If 1 dm3 of air contains 0.25 g of oxygen, the total amount will be enough to burn all the propane in the domestic gas cylinder. (Use atomic weights C = 12, O = 16, H = 1,) Select one: O a. 559.2 m3 OP. 181.8 m3 o c. 350.3 m snap. 179.2 m3 o e. 567.1 m