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Questions in chemistry

[Answered] Propane and oxygen react according to the equation: \[ \text{C}_3\text{H}_8(g) + 5\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 4\text{H}_2\text{O}(g) \] How many grams of water can be produced from the complete combustion of 2.0 moles of \(\text{C}_3\text{H}_8(g)\)? A. 144.0 B. 82.0 C. 8.0 D. 44.8 E. 22.4

[Answered] What derived unit is usually used to express the density of liquids?

[Answered] What SI unit would best be used to express the height of your classroom ceiling?

[Answered] Differentiate benzene and cyclohexane.

[Answered] Solve the following problem: \[(12 \times 10^9) \div (6 \times 10^5)\]

[Answered] You are given an aqueous solution of NaCl. The simplest method for the separation of NaCl from the solution is: A. evaporation of the solution to dryness B. centrifuging the solution C. osmosis of the solution D. electrolysis of the solution E. filtration of the solution

[Answered] Why can't we change the subscripts in balancing chemical equations?

[Answered] What type of reaction produces a metal from its metal oxide?

[Answered] How do clownfish catch their food?

[Answered] How many "dots" would be around the central atom in the Lewis structure of S (sulfur)? A) 5 B) 6 C) 7 D) 4