What mechanical waves needs a medium to travel through?

A. all mechanical waves need a medium to travel through

B. surface waves only

C. transverse and longitudinal waves only

D. longitudinal and surface waves only

In which part of the Milky Way galaxy is our sun located? halo bulge center spiral

The ease which an acid or base dissociates in a solution refers to a. strength b. concentration c. saturation d. indicator

How many moles of air are necessary for the combustion of 5.00 molmol of isooctane, assuming that air is 21.0% O2O2 by volume?

Certain types of organisms such as fireflies and anglerfish can produce light through chemical reactions in a process called bioluminescence.

A marshmallow gets black when toasted too long in a campfire. chemical property or change

The wavelength of some violet light is 420.0 nm. What is the frequency of this violet light?

What is the molarity of 3.0 L of solution containing 4.0 moles MgO

I need to have a sentence with the word neap tide in it.

15 g of gold and 25 g of silver are mixed to form a single-phase ideal solid solution. How many moles of solution are there? What are the mole fractions of gold and silver? What is the molar entropy of mixing? What is the total entropy of mixing?

What mass of barium nitrate is dissolved in 21.29 mL of a 3.38 M solution?