What is a key difference between chemical and nuclear reactions?

What is the empirical formula for C2H6

5) Which balanced equation represents a spontaneous radioactive decay? A) B) C) D)

What is a judgment based on observations called?

List the 4 characteristics of all living things

What would the expected temperature change be (in Fahrenheit) if a 0.5 gram sample of water released 50.1 J of heat energy? The specific heat of liquid water is 4.184 J/g-C

Given the following chemical reaction: 2 O2 + CH4 CO2 + 2 H2O In the reaction of 6 moles of CH4 with excess oxygen, how many moles of water could be produced? 6 C 12.01 Carbon 1 H 1.01 Hydrogen 8 O 16.00 Oxygen A. 4 B. 6 C. 8 D. 12

Most mutagens have what kind of an effect on an organism?

According to the hess's law, the enthalpy of solution is: δhsoln = δhsolute + δhsolvent + δhmix. considering dissolving a small drop of nonpolar pentane oil in water which term (s) in the equation will experience the largest enthalpy change.

Solve for x: ln x = 0.863. Report your answer to 3 significant figures.

What water activities might be easier to do in Lake Assal's salty water? What activities could be more difficult?