D.
Blue litmus paper turns red when placed in a base.
Answer:
option "B" is correct (substance 2)
it would be 26 because once you divide 160g by 5.0g and add 12.5 you would get 26
hope this helps
Answer:
Take the measuring cylinder and measure its mass, in grams, as accurately as possible.
Take the measuring cylinder off the balance and add the water carefully. Put the measuring cylinder back on the balance. Measure and record the new mass .
Repeat the procedure, recording the volume and total mass, until the measuring cylinder is full. Then, for each volume calculate the mass of the liquid alone.Repeat steps 1 to 3 Draw a graph of mass of liquid against volume . Calculate the density of each liquid from the gradient of its graph line.
Explanation:
