Phenol red is a common ph indicator. you add phenol red to an unknown substance and it turns yellow. what does this indicate about the ph of the substance?

What element is a byproduct of nuclear fusion?

How you would prepare a pure sample of zinc carbonate starting with zinc oxide

Calculate the mass, in kilograms, of a piece of copper that absorbed 19,550 calories of heat, which caused the temperature to rise 85 degrees Celsius. C = 0.092 cal/g degrees Celsius. Use 2 significant figures.

How are isotoes the same and differen?

Human body temperature is normally about 98.6°F. What is this temperature in Celsius?

What is the n factor of Ba (MnO4) 2 in acidic medium when it reacts with H2O2?

What organelle is primarily used in respiration

Which of the following planetary objects have the most affect on Earth's tides? sun Mars moon Venus

Ionic compounds are formed by the ... of electrons? by the what?

What is it called when energy is created without oxygen?