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Question #67db3

A hydrocarbon contain 0.0334 mol of carbon, 0.0668 mol of hydrogen and 0.0167 mol of oxygen. what is the empirical formula of the hydrocarbon.?

Question #cd3c6

Write an equation to show how the HSO4 ion can act as an Arrhenius acid
and write an equation to show hoe HSO4 ion cam act as a BronstedLower base?

What is the molecular weight of vitamin K1 C31H46 O2?

The elementary reaction 2H2O(l) <> 2H2(g) + O2 (g) has the partial pressures of H2O, H2, and O2 reach 0.0500 atm, 0.00200 atm, and 0.00450 atm respectively. What is the value of the equilibrium constant at this temperature?

Question #420ac

Question #c9b0f

Where are the dblock metals on the periodic table?

If 15.5 grams of aluminum, wit an initial temperature of 25.0 degrees Celsius, absorbs 155 joules of heat energy, what will be its new temperature?

Question #7e213

Question #fa899

Question #c835c

Question #787b9

Is matter in the plasma state is the most common on Earth?

Question #4e3c8

A sample of mercury absorbed 257 J of heat and its mass was .45 kg. If it's temperature increased by 4.09 K, what is its specific heat in J° / kg K?

What is the pH of a 0.050 M NaOH solution?

How do you find the inverse of #f(x)=3x+1# and graph both f and #f^1#?

Question #f0861

How do you simplify #2 abs(3(3) 5)#?

What type of bonding around a central atom would result in a trigonal planar molecule?

How do you determine the specific heat of ice?

Question #d7060

To which group in the periodic table does lithium belong? How many valence electrons does it have?

Question #2c872