What type of rock forms from thin and runny, fast-moving lava?

In the reaction between a crushed antacid tablet and vinegar what gas is emitted

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Which element is least likely to undergo a chemical reaction