How many chloride ions (Cl-1 ) are needed to balance the positive charge of a barium ion (Ba+2)?
A) 2
B) 1
C) -2
D) -1
E) 3
A
Environmental & Atmospheric Sciences
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Explain the three stages of the rock cycle and give two examples of each rock stage.
What will be an ideal response?
Environmental & Atmospheric Sciences
Climate and vegetation vary with changes in latitude and with changes in ____________________
Fill in the blanks with correct word
Environmental & Atmospheric Sciences
A radioisotope placed near a radiation detector registers 80 counts per second. Eight hours later the detector registers 5 counts per second. What is the half-life of the radioisotope?
What will be an ideal response?
Environmental & Atmospheric Sciences
The Thornthwaite system of climate analysis is most successfully applied in ____
a. northwestern Europe b. central China c. eastern and Midwestern United States d. central and western Russia
Environmental & Atmospheric Sciences