Search -a-mixture-of-natural-gas-and-air-does-not-react-appreciably-at-room-temperature-when-a-piece-of-platinum-is

# a mixture of natural gas and air does not react appreciably at room temperature when a piece of platinum is

## Top Questions

atinum is inserted into the reaction vessel, however, the mixture explodes. Explain.
View More

here are 2.00 mol of Gas A in the mixture, how many moles of Gas B are present? (R = 0.0821 L • atm/(K • mol)) (b) The gas in a 250. mL piston experiences a change in pressure from 1.00 atm to 2.80 atm. What is the new volume (in mL) assuming the moles of gas and temperature are held constant? (c) Small quantities of Oxygen can be produced by the decomposition of mercury(II) oxide as shown below. Typically, the oxygen gas is bubbled through water for collection and becomes saturated with water vapor. Atomic weight of HgO = 216.6 amu, Atomic weight of Oxygen = 32.00 amu) 2 HgO(s) → 2 Hg(ℓ) + O₂(g) (i) Assuming that 3.05 grams of HgO was used in this reaction, determine the number of moles of oxygen gas formed.(According to the above chemical equation) (ii) Assuming 310. 0 mL of Oxygen gas was collected at at 29°C, calculate the pressure of the Oxygen gas that was collected. (R = 0.0821 L • atm/(K • mol) (iii) If the vapor pressure of water at this temperature equals to 0.042 atm, calculate the pressure reading of this experiment.
View More

View More

ve 2 times as many kilograms of peanuts as of sunflower seeds. -Peanuts cost \$15/kg and sunflower seeds cost \$8/kg. -Boris has \$152 to spend. If you let x=kilograms of peanuts andy=kilograms of sunflower seeds, write a system of equations with elimination that could be used to solve Boris' problem.
View More

fill a 55-gallon drum with a 20% winter mixture of antifreeze for his customers. Dennis wants to mix 100% antifreeze with a 10% antifreeze mix to get the 20% mixture. How many gallons of 100% antifreeze and 10% antifreeze does he need in order to fill the drum?
View More

egar, and the second brand contains 14% vinegar. The chef wants to make 310 milliliters of a dressing that is 12% vinegar. How much of each brand should she use?
View More

ertilizer. How much of the mixture should be drained and replaced by an equal amount of water to dilute the mixture to 10% fertilizer? ___L of the 25% mixture should be drained and replaced by water. 2. Darren drives to school in rush hour traffic and averages 24mph. He returns home in mid-afternoon when there is less traffic and averages 39mph. What is the distance between his home and school if the total traveling time is 1hr 45min? The distance between his home and school is ___ mi.
View More

e - Organs - Organ systems - organisms - species ...etc... I also understand the chart for Matter being separated by either minute or substance a mixture of which can only either be homogeneous or heterogeneous and substances are either elements or compounds .... what I don't understand is where elements fit into the levels of biological organization and also ... if a compound is two or more elements then why is it a separate category under substances
View More

1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

mathematicsalgebra Physics