Rust is what type of Change?

Physical Change

Chemical Change

Predict the approximate molecular geometry of a formaldehyde molecule:

the solubility of sodium chloride is 284g per 100g of water. What is the concentration in parts per million? (ppm)

An engineer chooses to use bamboo as a building material because it grows quickly and needs little space to grow. This is an example of Apex

Select all of the examples of an acid. Lemons, Vinegar, Soap, Tomatoes, Baking soda, Bananas, Bleach, Ammonia

How do scientists determine the number of neutrons in an isotope of an atom? Question 3 options: They add the number of electrons and protons. They subtract the atomic number from the atomic mass. They find the number of protons.

Which branch of musicology might study the reasons as to why you like rock music and your friend like country music?

Consider the statement, In the following process, the number of particles increases, so ΔS for this process must be positive. MgS (s) ⇄ Mg2 + (aq) + S2 - (aq) Is this statement true?

How do you read a data table?

In the manufacturing process of sulfuric acid, sulfur dioxide is reacted with oxygen to produce sulfur trioxide.

What is the pH of a solution with hydrogen ion concentration of 1 x 10^-6 M?