Read the second section, "tsunamis usually happen in the pacific ocean."
read the final section, "warning systems and evacuation plans have saved lives."
how does the second section relate to the final section?
a
both sections provide specific examples of the effects of tsunamis.
b
both sections compare and contrast different causes of tsunamis.
c
the second section describes problems with studying tsunamis. the final section describes how scientists discovered a solution to the problems.
d
the second section describes scientists' predictions about tsunamis. the final section provides information about whether they were correct.

calculate how many grams of ammonia can be produced from 4.21 grams of

n2 + 3h2 = 2nh3

my answer:

25.0g n2 x (1 mol/ 28.0gn2) x (2 mol nh3/ 1 mol n2) x (17.0g nh3/ 1 molnh3) = 30.36g n2

25.0g h2 x (1 mol h2/ 2.00g h2) x (2 mol nh3/ 3 mol h2) x (17.0g nh3/ 1 mol nh3) = 141.67g h2

lr = n2

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation:

so here we go

atomic mass

239 + 1 = y + 134 + 3 combine like terms

240 = y + 137             subtract 137 from both terms

240 - 137 = y

103 = y

atomic number

94 = z +54 + 0

94 = z + 54               subtract 54 from both sides.

40 = z

answer

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.