You find a mysterious white powder in your kitchen. It could be cream of tartar (pH=5), sugar (pH=7), baking soda (pH=8), or drain cleaner (pH=14). Explain which pH indicator(s) you would use to determine the unknown substance. 1) Phenolphthalein (PHT) 2) Red cabbage 3) Bromthymol blue 4)Congo red (CR)
a police officer and a ambulance
answer by yourhope:
how do models compare to real-world objects?
d. most models represent a real-world object in a simpler way.
the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.