An element does not react with hydrogen or with oxygen and has a low (<100 °C) boiling point. Where might it be found in the periodic table?
An element does not react with hydrogen or with oxygen and has a low (<100 °C)...
Determine the mass percentage of carbon, C, hydrogen, H, and oxygen, O, in CH40. Refer to the periodic table for the atomic mass of each element.
10. (8 pts) Oxygen, sulfur and selenium are in the same column of the periodic table. One sitting under each other in the order listed. All reaction with two hydrogen atoms to form a stable compound H2Se has a higher boiling point than H2S. It is also heavier. Explain how this does (or doesn't) make sense. What explains the fact that water, H O, has a higher boiling point than hydrogen sulfide, H2S, which is heavier
A binary compound of oxygen and an unknown element, X, has the formula XO2 and is 72.71 mass % oxygen. (a) What is the atomic weight of element X? u (b) What is the symbol for the element on the periodic table? X = (c) Is the element X a metal or not? _________? (d) Is the compound XO2 likely to be ionic or covalent?_________ioniccovalent (e) What is the name of the compound?
Element Y reacts with oxygen to form the compound Y2O and has the lowest ionization energy of any Period 4 element on the periodic table. Identify this element.
What volume of oxygen gas is required to react completely with 1.67 mol of hydrogen sulfide according to the following reaction at 0°C and I atm? hydrogen sulfide (g) + oxygen() — Water (1) + sulfur dioxide(g) L l iters oxygen gas
2. If the magnesium does not completely react with oxygen, how will the final results be affected? 3. If the water is not completely removed in the final heating step, how will the final results be affected? 4. Using the periodic table, determine the formula of the magnesium nitride by- ed in the combustion of air. If this were not treated with water to product form convert it to magnesium oxide, how would the final results have been affected?
s 1 Periodic Maleic acid is a carbon-hydrogen-oxygen compound used in Review Constants | Periodic Table dyeing and finishing fabrics and as a preservative of oils and fats Answer Requested . The molecular formula for maleic acid is C4H404 . When 0.609 g of maleic acid is dissolved in 25.00 g of glacial acetic acid, the freezing point drops by 0.82 °C. Maleic acid does not ionize in glacial acetic acid, which has a freezing-point depression constant ot Kr 3.90...
Hydrogen and oxygen react to form water vapor as seen in the unbalanced equation below. In a 475 ml container at 533C, hydrogen has a pressure of 0.998 atm. Inside that vessel, oxygen is contained in a small tube with a volume of 25.0 ml, same temperature, and a pressure of 2.75 atm. The small vessel of oxygen is shattered and allowed to react according to the equation H2(g) + O2(g) - HO(g) What is the limiting reactant? What is...
20 1 point Hydrogen and oxygen gas react explosively to product water vapor. How many grams of water are made from the reaction of 39.6 grams of hydrogen gas and an excess of oxygen? Reaction: 2H2(g) + O2(g) - 2H2O(g) Type your answer Previous Next
Hydrogen chloride gas and oxygen gas react to form water and chlorine gas. A reaction mixture initially contains 50.5 g of hydrogen chloride and 17.3 g of oxygen gas. Once the reaction has occurred as completely as possible, what mass (in g) of the excess reactant remains? Enter to 1 decimal place.