Chemistry, 19.09.2019 05:00 rosetoheart2
We can block light by placing obstacles in its path, but it’s much more difficult to block sound. why?
sound waves are transverse waves.
sound waves can move through various mediums.
sound waves have high frequencies.
sound waves have short wavelengths.
sound waves have low amplitudes.
Answers: 2
Chemistry, 22.06.2019 03:00, ian2006huang
Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.
Answers: 3
Chemistry, 22.06.2019 04:00, amandasantiago2001
Which of the following ocean acidification? are the most likely side effects of a ph less than 7.0 in the ocean b. more metal salts altering the ocean chemistry c. dissolution of the shells of marine organisms d. both a & b e. all of the above.
Answers: 3
Chemistry, 22.06.2019 07:00, ceeejay0621
What is the main purpose of patent attorneys? defend the company against legal claims manage financial investments invent new products protect rights to new products and processes
Answers: 1
Chemistry, 22.06.2019 23:30, adamgala3885
The comparison of the number of atoms in a copper coin the size of a penny with the number of people on earth is made to illustrate which of the following? a. that atoms are indivisible b. that atoms are very small c. that atoms are very large d. that in a copper penny, there is one atom for every person on earth
Answers: 1
We can block light by placing obstacles in its path, but it’s much more difficult to block sound. wh...
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