A non-metallic element, X, forms a gaseous oxide with the formula X2O that reacts with water to form an acidic solution. The element X is most likely to be:

A Na
B S
C Cl
D P

Which term refers to a property that depends only on the amount of a substance? ©@

1. list three scientific reasons cockroaches may fly.

When 13.3 g koh is dissolved in 102.7 g of water in a coffee-cup calorimeter, the temperature rises from 21.4 °c to 31.53 °c. what is the enthalpy change per gram of koh (j/g) dissolved in the water? * take the density of water as 1.00 g/ml. * assume that the solution has a specific heat capacity of 4.18 j/g*k. enter to 1 decimal place. do not forget the appropriate sign /(+). canvas may auto-delete the (+) sign