HELP 20 PTS Pure gold is usually too soft for jewelry, so it is often alloyed with other metals. How many gold atoms are in a 0.426 ounce, 18 K gold bracelet? (18 K gold is 75% gold by mass.) Express your answer using two significant figures.

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.

Predict the reactants of this chemical reaction. that is, fill in the left side of the chemical equation. be sure the equation you submit is balanced. (you can edit both sides of the equation to balance it, if you need to.) note: you are writing the molecular, and not the net ionic equation. > cacl2(aq) + h20(l)

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by