How many significant figures does 0.070 have?

The central core of an atom is called the a. reactor vessel. b. neutron. c. proton. d. nucleus.

What is defined as the absorption of oxygen and the release of carbon dioxide by cells?

How many atoms of oxygen are in 4.6 grams of copper sulfate

Several students were playing baseball outside. Nate wore a white shirt, Christina wore a black shirt, Autumn wore a yellow shirt, and Tristan wore a pink shirt. Who will be the most likely to get hot first? A. Autumn B. Tristan C. Christina D. Nate

Christy wants to find out if the birds that visit the bird feeders in her backyard would rather build nests in birdhouses or in trees.

All bodies of water make up a earth's A. atmosphere B. asthenosphere C. hydrosphere D. lithosphere

Which characteristic provides clues to how igneous rocks were formes? A textures B color C luster D streaks

If your heart beats an average of 68 times per minute, how many times will your heart beat in an hour? In a day? In a week? Show all work

The gas described in parts a and b has a mass of 1.66 g. the sample is most likely which monatomic gas?

What is the oxidation number of N in NH4NO3