There are several hazards associated with the chemicals in the qualitative analysis experiment. For each chemical, identify the associated hazards. (select all that apply. ).

Hiya! this would be resolution  good-luck!

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.

May strike workers if the load swings, twists, or turns.