What was the earliest life form on Earth?
A. Protists
B. Bacteria
C. Viruses

What are fructose and glucose an example of?

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

The lattice enthalpy (formation of ionic solid from ions in the gas phase) for agcl(s) is -916 kj/mol and the hydration enthalpy (dissolution of gaseous ions into water) is -850 kj/mol. how much heat (in joules) is involved in forming 1l of saturated agcl solution (1.8 × 10-4 g / 100 ml water) by dissolving agcl(s)? assume solution volume does not change much upon dissolution. the equations are given below. ag+(g) + cl−(g) æ agcl(s)