Question 2(multiple choice worth 4 points) (08.04 mc) read the given equation: ca(oh)2 + 2hcl → cacl2 + 2h2o which of the following is true about the equation? ca(oh)2 is the base and cacl2 is the salt. ca(oh)2 is the acid and cacl2 is the salt. hcl is the acid and ca(oh)2 is the salt. hcl is the base and ca(oh)2 is the salt.

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

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

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures