If reactants A and B contain a total of 248 kJ of chemical energy, and products C and D contain a total of 841 kJ of chemical energy, is the reaction endothermic or exothermic?

Which of these is a mixture? A) potassium B) salad C) water H20 Dsugar C12H22O11

Why is magma that contains little silica less likely to erupt explosively?

What statement best describes the liquid state of matter It has definite shape but indefinite volume It has definite shape and definite volume It has indefinite shape and indefinite volume It has indefinite shape but definite volume

Derscribe the properties and relationship of neutrons, protons, and electrons including charge and relative location in an atom

What are the five main chemical compounds of life

What is the mass in grams of 85.32 mL of blood plasma with a density of 1.03 g/mL?

The molar solubility of Ag2CO3 is 0.074M at 10°C. What is the Ksp of Ag2CO3 at the same degree?

You would know you were in the troposphere If? It were raining on you You were floating in space You were flying in a high altitude jet You were in the ozone later

A burning match is an example of a chemical change phase change nuclear change physical change

The table below shows the shapes of two samples, C and D, when placed in three containers of different shapes.