Use chlorine's position in the periodic table to draw a model of chlorine (CI) that includes the nucleus, core electrons, and
valence electrons.

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

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

How many atoms or molecules are there in a mole of a substance?