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19.55g of potassium will require how many grams of water to react in 2K+2H2O=2KOH+H2? For questions...
Question 37 (1 point) How many grams of water are needed to react with 25 g of potassium in the following reaction? K 39.10 g/mole ->2KOH+H2 2K 2H20
If 5.70 g of potassium react with water, how many grams of hydrogen gas, H2, are produced? 2 K + 2 H2O → 2 KOH + H2 Enter your answer rounded to the correct number of significant digits.
can you do number 10,11,12,13,14,15,16,17,18,19 and 20?
show calculations please
FORMA 10) 6 moles of H2 will make how many moles of CHO, a)6 b) 12 c) 0.5 d) 1 e) 2 11. In which case is the element correctly matched with its combining ability? a) K:+ b) Mg: +2 c) Al: +3 d) a & b e), b, & c 12 Based on your knowledge of the periodic table, which would be a correct formula? a) CaS b) NaBr...
How many moles of N2 are required to completely react with 3.53 grams of H2 for the following balanced chemical equation? N2 + 3H2 → 2NH3
2K(s)+2H2O(l)→2K+(aq)+2OH−(aq)+H2(g). with the equation above, part C Assume that a chunk of potassium weighing 8.60 g is dropped into 400.0 g of water at 29.0 ∘C. What is the final temperature of the water if all the heat released is used to warm the water? PART D What is the molarity of the KOH solution prepared in part (c)?
For the balanced equation shown below, how many grams of C2H3O2Cl will react with 14.5 grams of HCl? 2C2H3O2Cl(g) + 3O2 (g) -->4CO2 (g) + 2H2O(g) + 2HCl (g)
QUESTION 3 How many grams HCI needed to react completely with 13.8 grams Al, according to the following balanced equation? 2AL + 6HCI -> 2AlCl3 + 3H2 55.9 g 7.01 g 281 g
How many grams of H2 are needed to react with 67 grams of O2, given the reaction: 2 H2 (g) + O2 (g) --> 2 H2O (l)
17. (10 pts) Solid potassium metal reacts with liquid water to produce aqueous potassium hydroxide and hydrogen gas as shown by the BALANCED chemical equation below. When a 3.50 g piece of K(s) is added to 150. g of water in an insulated container, the temperature of the liquid INCREASES from 25.0 °C to 65.8 °C. Calculate the enthalpy of reaction (4FH) for the reaction in the forward direction. Water has a heat capacity (Cp) of 4.18 J/(8 °C). Assume...
zation Reactions ( 501 The balanced chemical equation for the reaction of potassium hydroxide with sulfuric acid is H,SO (aq) + 2KOH(aq)-K,SO.(aq) + 2H2O(1) Part Given the balanced neutralization equation from part B, how many moles of potassium hydroxide (KOH) are required to neutralize 2.5 mol of sulfuric acid (H,SO)? Assume that the sulfuric acid completely dissociates in water Express your answer with the appropriate units, either mol or mole. View Available Hint(s) MacBook Pro * One WELRY