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Gallium metal reacts with dioxygen to produce gallium oxide. How many grams of O2 are required to react completely with 6.4 grams of Ga?
When 3.761 g of a hydrate of strontium chloride is heated to 60 degree celsius it forms strontium chloride dihydrate of mass 2.746 g. What is the formula of the original sample
Equal Numbers of moles of H2 gas and I2 vapor are mixed in a flask and heated to 700 degrees celcius. The initial concentration of each gas is 0.0088 mol/L and 78.6% of the I2 is consumed when equlibrium is achieved according to the equation
Sometimes redox reactions happen differently in acidic or basic solutions. Explain, in your own words, the difference in how you balance a reaction in acidic solution and basic (alkaline) solution.
What must californium-250 be bombarded with to produce lawrencium-257 and 4 neutrons? a. carbon-8 b. boron-8 c. fluorine-11 d. boron-11
A subway train has a sound intensity level of 90 dB, and a rock band has a sound intensity level of about 110 dB. How many times greater is the sound intensity of the band than that of the train?
What are the electron configurations of the following metal ions: Fe3+, Zr4+ and Co3+?. Draw a) the high-spin electron configuration for a complex containing Fe2+ and b) the low- spin electron configuration for a complex containing Fe2+. Assume an..
The final temperature of the water in the calorimeter was 24.2 deg C. What is the heat capacity of the calorimeter?
ITCM 204 construction codes, contract, and specification. 1-Construction industry A) Lists examples of five construction workforces? 2-What are the three major problem faced by construction workers?
What is the pH of a solution prepared by diluting 25.00 mL of 0.10 M HCl with enough water to produce a total volume of 100.00 mL
a total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 127g of water. the reaction
A little boy on the beach lets go of a He filled balloon which floats up into the sky. The balloon finally pops after reaching a height of 1250. m above the ground where the temperature is 18 °C and the pressure is only 0.860 atm.
In coffee, how much would the boiling point (in C) of the water be raised by the addition of 0.2 g of caffeine (C8H10N4O2) to 5.0 L of water in making this so much coffee
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