How are elements arranged in the Periodic Table?

A.

by their properties

B.

alphabetically

C.

by how much they are worth

D.

in the order they were discovered

An action potential in one segment of axon causes adjacent sections of axon membrane to reach threshold through what mechanism?

Which of the following is the correct SI unit to use to measure a length of rope? A) yards B) meters C) feet D) inches

How many grams of methane (ch4) are present in 5.6 moles of methane gas? (use dimensional analysis) ?

Which statement accurately compares the trends in atomic number and atomic mass in the periodic table? The atomic number increases from left to right, while the atomic mass increases from right to left.

Which of the following statements is true of asexual reproduction? A. Offspring have different combinations of genes ... B. Offspring have half of their genes from the male parent. C. Offspring have the same genes as the parent. D.

216 J of energy is required to raise the temperature of a piece of aluminum from 15.0º C to to 35º C. Calculate the mass of aluminum used. (Specific heat of aluminum = 0.90 J ∙ º C-1 ∙ g-1)

How much of the rock cycle can be observed directly? How much must be inferred? Think about both how long things take to happen in the cycle as well as where different parts of the cycle occur. Refer to specific parts of the cycle in your answer.

How are elements arranged in the Periodic Table? A. by their properties B. alphabetically C. by how much they are worth D. in the order they were discovered

If an iron nail is placed in a glass of water the nail will sink. Is the density of iron smaller than or larger than the density of water? explain

What is made when salt is dissolved in water? A a precipitate B a mixure C a solution D a compound