Select all the correct answers. which reactions are single displacement reactions? 2nabr + caf2 → 2naf + cabr2 sno2 + 2h2 → sn + 2h2o 4na + o2 → 2na2o 2kclo3 → 2kcl + 3o2 2al + 6hcl → 2alcl3 + 3h2

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's

Which of the following is most likely true about water in chemical solutions?