Use words from the box to complete the sentences. fungi pathogen poison vaccine virus

(a) A bacteria that can cause a disease is an example of a.

(b) An obligate parasite that must inhabit a host cell to reproduce is a .

1. list three scientific reasons cockroaches may fly.

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)

What is the value of the standard enthalpy of formation of an element in its most stable form?