Is making salt water a physical or chemical

What is one way to tell if a mineral is an element?

According to the valence bond theory the triple bond in ethyne consists of

Calculate the total heat (joules) of formation for 30 grams of water that is heated from 32C to 48C

How is the bright line spectrum of carbon produced?

Which of the following systems (i. e., pair of metals) would you expect to exhibit complete solid solubility? Cr-V Mg-Zn Al-Zr

Why is there no change in the temperature when the process of melting takes place?

Summarize the acid-base behavior of the main-group metal and nonmetal oxides in water. How does oxide acidity in water change down a group and across a period?

What is an atom?

Sodium will react with oxygen to form sodium oxide. use the formula below to determine how many grams of sodium oxide will be formed if 46 grams of sodium are used in the reaction.

How many atoms in 2.8 mol of neon?