What type of elements make up an ionic compound

The table shows the thermodynamic data for a reaction. Thermodynamic Data Energy of the Reactants Energy of the Products Activation Energy 160 kJ 370 kJ 260 kJ Which of the following statements explains if the reaction is endothermic or exothermic?

This question is very hard and I'm having trouble with it

657 g of 2-chloro-2,4-dimethylpentane (g/mol = 134.65) is generated from a reaction between 2,4-dimethyl-2-pentanol (g/mol = 116.20) and excess hcl. assuming 100% yield, how many grams of 2,4-dimethyl-2-pentanol were used?

A petroleum engineer wants to determine the average amount of petroleum in a given rock formation. Which of the following statistical measurements will provide him with this data? Mean Median Mode Range

Coffee and tea are weak acids. what would you expect their ph values to be?

Difference between radical and compound

Water is a produced when 30.0 grams of hydrogen reacts with 80.0 grams of oxygen what is the limiting reagent

How are reactions and products related in a chemical reaction?

Ollie wants to sign up with an online social network called TeensMeet, which other kids at school have joined.

7. A perfect cube has a width of 2 cm. What is the cube's volume? Show your work!