Kaylene

If 200 ml of gas held at a constant pressure has a starting temperature of 300 degrees K, and it expands to fill a 300 ml space, what would be the new temp? (I got 454.54) Thanks!

Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions of dollars everyday. Although the actual process also requires water, a simplified equation (with rust shown as iron(III) oxide (Fe2O3) is: 4Fe(s)+3O2(g)...

Calculate the heat of formation reaction for SiO2(s)+4HF(g) --> SiF4(g)+2H2O(l) I got -129.6 and it says I'm wrong

dawn gathered information about the population of each country in her state.if she prepares a bar graph of this data, what information goes on the vertical axis?

Nathan made a triple bar graph showing the numbers of bronze, silver, and gold medals won by each country in the last Olympics. How can he use the information from this graph to create a bar graph that shows the total number of medals won by each country?

It's 1.65 x 10^3 kJ. This is what I did for the 1st question: -0.250 kg Fe x 1g Fe/10^3 kg x 1 mol Fe/223.4 g Fe x -1.65 x 10^3 kJ/4 mol Fe = 4.61 x 10^-4 kJ Fe 2nd question: 2.00 x 10^3 kJ Fe2O3 x 2 mol Fe2O3/ -1.65 x 10^3 kJ x 319.4 g Fe2O3/1 mol Fe2O3...

What career can I do with this subjects