Is milk souring a physical or chemical change

When a balloon is rubbed with human hair, the balloon acquires an excess static charge. This implies that some materials A) conduct electricity, while others do not. B) can accept protons more easily than others.

Studystack if a substance can be physically separated into its components, is it a pure substance or a mixture?

12) Which of the above solutions could be used to remove lead from lead (II) nitrate? a. Cu b. Hg c. Ag d. Ni

Why is global warming a cause of concern for thr environmentalists?

What are the differences between metals, nonmetals, and metal looks in the periodic table?

What is the name of the compound composed of iron and carbonate? [hint: iron has a + 3 charge in this compound]?

In a chemical equation the products appear on which side of the equation? A. Left B. Top C. Right D. Bottom

What does the shape of a protein molecule resemble?

Which set of terms best defines what affects kinetic energy and potential energy, respectively? position, gravity gravity, velocity velocity, height height, position

Which radiation detection device is the best to use for measuring the presence of radiation in large moving objects where constant monitoring is impossible? film badge Geiger counter cloud chamber scintillation counter