Does observing a physical property of a substance change the identity of the substance? Explain.

Which statement best describes the physical geography of the Italian Peninsula? It is a flat plain with few hills or mountains. It is a desert without access to fresh water. It is a combination of hills, mountains, and plains.

What is the effect of adding more water to the following equilibrium reaction? CO2 + H2O - -> H2CO3 A The equilibrium is pushed in the direction of reactants. B More hydrogen carbonate is formed. C Carbon dioxide concentration increases.

Which of the following best summarizes the relationship between dehydration reactions and hydrolysis? A) Dehydration reactions assemble polymers, and hydrolysis reactions break down polymers.

What is a scientific theory? and what is a scientific law?

How many moles of N2 are essential for generating 0.08 moles of Li3N in the given reaction?6Li N2 2Li3N

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