Which gas tank will empty first? acetylene (C2H2) oxygen (O2)

Any advice for a GCSE chemistry student sitting first chemistry paper?

How can different forms of energy be classified?

6. Which compound is a saturated hydrocarbon? (1) CH2CH2 (2) CH3CH3 (3) CH3CHO (4) CH3CH2OH

Which of these is a reason gold is more expensive than metals like aluminum? A) Gold is rarely found in Earth's crust. B) Gold is the most common metal on Earth. C) Gold is one of the lightest metals known to man.

The concentration of hydrogen ions [h+] in a solution is 4.5 * 10-2m. what is the ph?

Explain why magnesium hydroxide has the formula Mg (OH) 2

What energy conversion occurs when a battery powered car rolls across the floor?

A sample of gas has a volume of 5.79 L at 25C and 518. What will be the volume of this gas at STP

Calculate the pH of a buffer consisting of 0.50 M HF and 0.45 F - a) before b) after addition of 0.40 g of NaOH to 1.0 L of the buffer

Materials with small, connected pores are a. impermeable c. unsaturated b. permeable d. saturated