B will be the one I think tbh
An independent variable is the variable you are changing in order to measure the dependent variable, which is what you are measuring.
In this example, the
independent variable: chemicals in solution
dependent variable: temperature of solution
Answer:
I think it's C
<u>Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current. It is thought that this type of current is responsible for the movements of the plates of Earth's crust.</u>
Answer:
The only liquid elements that can melt at standard temperature and pressure are bromine (Br) and mercury (Hg).
When you are mixing reagents in a separatory funnel it is
important to vent it normally and do so in a method so that is it is not
venting towards anybody. Also be certain to take out the stopper when draining
the lower layer. If you do not take out the stopper, the pressure will not be correct,
and the liquid will not pour out.
