Which of the following is unique for any given element? a. the number of neutrons b. the charge on the electrons c. the number of protons d. the mass of a neutron

How are scientific questions answered?

How could you identify a chemical reaction as being single replacement, simply by looking at it?

What are the characteristics of the outer core

Which principle states that the processes occurring on Earth today are the same as those that occurred in the past? A. principle of uniformitarianism B. principle of superposition C. principle of fossil correlation D.

What depends on public opinion and support? A. regulations at a local level B. enforcement of laws C. success of a policy D. revising an existing policy

1. According to the article, which country may have a greater population than China by the year 2050? A. China B. Kenya C. India D. Germany 2. What does the article list as one reason that drives couples in India to have more children? A.

How are the relationships of elements in a group different from the relationships of elements in a group

How many nitrate ions are in 387.4 grams of calcium nitrate?

Tin or silver more reactive

Chemical reactions that release energy possess reactants with lower energy than their products. True or False Heat is the most common form of energy absorbed or released in chemical reactions. True or False