water has four regions of electron density (tetrahedral; tetra = 4), but what is the name of its molecular shape?

Why is it important to neutralize the reaction mixture during the workup? 1. It ensures that the ester is uncharged and therefore insoluble in water so that the product can be filtered. 2.

Cobalt has an atomic mass of 59 and an atomic number of 27 what does this information reveal about most cobalt atoms

16. A body is a particular amount of matter. It can be a solid, liquid or gas. It can be described as existing in 999 O A. motion and force. O B. location and movement. OC. size and shape. O D. time and space. Correct answer is c size and shape

Which changes are evidence of a chemical reaction? drag each item to the appropriate bin?

Solve the following: Which one is more metallic 1. A) Potassium or B) Bromine 2. A) Cesium B) Sodium 3. A) Silicon or B) Aluminum 4 A) Gold or B) Bismuth

Compare How does the current model of the atom differ from J. J. Thomson's model?

An environmental change is occurring due to continents shifting and moving to different parts of Earth's surface. What kind of change is this?

Which best describes the climate of Antarctica? A. Humid due to low elevation B. Slowly getting colder C. The coldest place on Earth D. Low temperatures due to high elevations

How many neutron and protons are in lithium-7?

Why do chemists use the mole?