What does the electronegativity of an element indicate?

Which of the following steps will speed up the reaction between coal and oxygen? Keep the coal in a wide dish Decrease the temperature of oxygen Increase the temperature of coal Keep the coal in a narrow test tube

How write 5601 in scientific notation

An alloy is a mixture of metals. Suppose that a certain alloy is made by mixing 50 grams of an alloy that contains 52% copper with 78 grams of pure copper. a). How many grams are in the resulting mixture? __grams. b).

Commercially available cold packs are simple in design: a pouch with water on one side, isolated by a barrier from a specific salt on the other side. When the barrier is broken, the salt and water mix and the solution turns cold.

Which one of the following equations is the net ionic equation for the reaction of aqueous sodium hydroxide (NaOH) with aqueous hydrochloric acid (HCl) ?

Sedimentary rocks may form far away from where the sediments formed. what two processes bring sediments to a new location

The measure of the force with which air molecules push on a surface that a called

Which property of CNG is used to fill it in cylinders?

How many milliliters of 2.55 m naoh is needed to make 125 ml of 0.75 m naoh solution?

Describe the scientific method and it's four steps.