In the equation:
339Th -→ 31° Pa + x
The symbol X represents
A) 4:e B) e C) ön D) įH

For each of the compounds below, show that the charges on the ions add up to zero. a. kbr b. cao c. li(2)o d. cacl(2) e. alcl(3)

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?

At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver