Branliest to correct answer

what evidence is there that work is being done?

a)
a lever is being used.

b)
a simple machine makes a task easier.

c)
the rock has a larger force than the boy.

d)
the boy uses force to move the rock a distance.

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Base your answer on the information below and on your knowledge of chemistry. nitrogen dioxide, no2, is a dark brown gas that is used to make nitric acid and to bleach flour. nitrogen dioxide has a boiling point of 294 k at 101.3 kpa. in a rigid cylinder with a movable piston, nitrogen dioxide can be in equilibrium with colorless dinitrogen tetroxide, n2o4. this equilibrium is represented by the equation below. 2no2(g) n2o4(g) + 58kj at standard pressure, compare the strength of intermolecular forces in no2(g) to the strength of intermolecular forces in n2(g).

How can you use chemical equations to predict the products of the reaction you can carry out?