Which sample has the fewest atoms? choose one answer.

a. 1.00g of sn

b. 1.00g of ar

c. 1.00g of ru

d. 0.500 g li?

What features do all space probes have in common, and what do these features do?

An autoclave is used to sterilize surgical equipment because A) it allows water to boil at temperatures less than 100 °C. B) it allows water to boil at 100 °C at pressures less than 1 atm.

Question 9 10 pts How many calories are released as 50.0 g of water cools from 100.0 °C to 25.0 °C? 750 cal 7500 cal 3750 cal 1250 cal

Where did the Big Bang come from?

How any electrons are shared in the covalent bond of two nitrogen atoms to form a nitrogen molecule? A. 2 B. 4 C. 6 D. 8

Which statement best describes a bacterial cell? A It contains more than one cell. B It is a complete organism. C It is part of a larger organism. D It contains different kinds of cells

Lithium (Li) and oxygen (O) are both in period 2. They both have? a. similar properties b. the same number of protons c. two electron shells d. the same number of electrons

What compares a law and a theory?

Explain what domain would best be represented by the "?" in the diagram. A) Eukarya because the organisms are all eukaryotic. B) Eukarya because the organisms are all prokaryotic. C) Bacteria because some of the organisms are autotrophs.

If you are eating a hamburger, it is an example of a consumer eating another consumer. a) true b) false