How many known elements dose the periodic table show?

a) 4

b) 92

c) 118

Materials with ionic or covalent bonds tend to be more easily scratched?

How my orange frogs change because of the red fly

If the caffeine concentration in a particular brand of soda is 2.87 mg/oz, drinking how many cans of soda would be lethal? assume 10.0 grams of caffeine is a lethal dose, and there are 12 oz in a can.

Compared to a 26-gram sample of NaCl (s) at STP, a 52-gram sample of NaCl (s) at STP has (1) a different density (2) a different gram-formula mass (3) the same chemical properties (4) the same volume

8. Why is Carbon monoxide loved by all? A. It doesn'at smell good B. It can be fatal C. It is invisible D. The statement is false

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?

The suffix "-megaly in the term gastromegaly means: