How are the helium atoms in a glass model different from real atoms

What happens when there is no ozone layer

If NaOH were dissolved in water, how many ions per molecule are formed?

A substance is commonly used in cleaners has a bitter smell, is slippery, and does not react to metal. What can you conclude about the pH of this substance? Explain your answer.

An automobile gasoline tank holds 21 kg of gasoline. when the gasoline burns, 84 kg of oxygen is consumed, and carbon dioxide and water are produced. what is the total combined mass of carbon dioxide and water that is produced?

You are doing an experiment about the diet of mice. You want to see how the amount of salt in a mouse's food affects how much water the mouse drinks. What should the independent variable be? a. the type of mouse b. the amount of salt in the food c.

The four elements comprising over 90 of living matter are

Consider the gas-phase reaction, n2 (g) + 3 h2 (g) 2 nh3 (g), for which kp = 43 at 400 k. if the mixture is analyzed and found to contain 2.0 bar of n2, 2.0 bar of h2 and 27.0 bar of nh3, describe the situation:

How many moles of ions are in 285 ml of 0.0150 m mgcl2?

Given: logK=nE∘0.0592 What is the value K for this redox reaction? Zn2 + (aq) + 2 Cl - (aq) → Zn (s) + Cl2 ( g. Ecell = - 2.12 V

What is 350 kelvin on the Celsius scale of temperature?