The physical properties of a metal depend on how dense the metal is
I think the answer is A, but I have the same question, so if you know the correct answer, could you let me know? Thanks!
Answer:
C
Explanation:
i think thats correct im not 100% sure
A IS THE CORRECT ANSWER TO THE QUESTION
Answer:
See below
Explanation:
a) Adding HCl
HBTB is yellow in acid solution.
b) Adding NaOH
HBTB is blue in basic solution.
c) Explanation
HBTB is a weak acid in which the undissociated and ionized forms have different colours.

Around pH 7 , the indicator consists of roughly equal amounts of the yellow and blue forms, so it appears green
According to Le Châtelier's Principle, if you apply a stress to a system at equilibrium, it will respond in a way that will relieve the stress.
When you added HCl, you increased the concentration of H₃O⁺. The system responded in a way that would decrease the H₃O⁺. That is, the position of equilibrium shifted to the left and produced more of the yellow form.
When you added NaOH, the base removed some of the H₃O⁺. The system responded in a way that would increase the H₃O⁺. That is, the position of equilibrium shifted to the right and produced more of the blue form