All of the alkali earth metals, Group 2, have two valence electrons. Which of these would represent the oxidation number of the alkali earth metals such as magnesium and calcium?

A) - 6

B) - 2

C) + 2

D) + 6

1. The products in cellular respiration are A carbon dioxide, water, and ATP B carbon dioxide and glucose C glucose and oxygen OD water, oxygen, and ATP

How can the relationship between vultures and cheetahs be described? A) The Activities of Cheetahs are harmful to vultures B) Vultures benefit from the activities of Cheetahs C) Vultures have a predator-prey relationship with cheetahs D) Cheetahs

Which light waves are refracted the most after passing through a prism? a. Red waves b. Yellow waves c. Green waves d. blue waves

Which of the following is NOT a benefit of shared sleeping?

Which level of classification contains orders but is smaller than phylum? kingdom family class species A-kingdom B-family C-class D-species

In the Bohr model of an atom, an electron's path is not known exactly.

How are mitosis and meiosis similar? a. they both have prophase and metaphase. b. they both produce gametes. c. they both produce tetrads. d. they both reduce the chromosome number?

Blank is between the times when a cell is dividing

Magnetometers revealed that the basalt rocks along the mid-ocean ridges are aligned in alternating, symmetrical patters.

A scientist wants to find the percent of teens that like the taste of "brand X"lemonade over "brand Y" lemonade. She conducts a taste test of 500 teenagers. She gives each teen a bottle of lemonade with the labels showing the brand of each lemonade.