How many neutron does atom 22Ne isotope have

Why hyberdization occurs?

Which of the following most likely explains why the chemical symbol for calcium is Ca? The symbol C was already used for carbon. The element is named after the Latin word for calcium. The symbol was assigned by modern alchemists.

What are the components of the formula for finding force?

Imagine a beaker divided down the center by a rigid membrane that is freely permeable to water but impermeable to glucose. side 1 contains a 10 percent glucose solution and side 2 contains the same volume of pure water.

Which of the following is not true about the structure of an alveolus? A. It has thick walls to trap gases that enter during the breathing B. It has many capillaries running through its structure C.

A 1.3 g sample of gold (specific heat capacity = 0.130 J/g °C) is heated using 86.9 J of energy. If the original temperature of the gold is 25.0°C, what is its final temperature?

In what applications might coal replace petroleum based fuel

How many molecules are in 7.5 mol of h2o

An electron moved from a lower energy level to a higher energy level. What most likely happened during the transition? A random amount of light was released. A fixed amount of energy was absorbed. A fixed amount of energy was released.

Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are formed when 57.1 grams of sodium are added to water?