Which is an example of a chemical change?

a. mixing of poster colors

b. formation of clouds

c. metal corroding in salt water

d. sugar dissolving in water

e. separating salt from seawater

For the reaction represented by the equation 2hno3 + mg (oh) 2® mg (no3) 2 + 2h2o, how many grams of magnesium nitrate are produced from 8.00 mol of nitric acid, hno3, and an excess of mg (oh) 2?

The concentration of gallium in silicon is 5.0 * 10-7 at%. What is the concentration in kilograms of gallium per cubic meter?

How would you determine the formula weight of Naci? A) Add the mass of sodium (22.99 amu) plus the mass of chlorine together (35.45 amu). B) Multiply the mass of sodium (22.99 amu) by the mass of chlorine (35.45 amu).

Write a ph lab lab report

What is 0.001012 in scientific notation

Use the drop‑down menus to label the statements as either true of false. Dichloromethane is flammable. true false Methanol is flammable. Concentrated sulfuric acid is corrosive. 10% sodium carbonate solution must be used in the fume hood.

What is the process all rocks are continuously in during which that can change into other types of rocks

Collagen is made of fibers and is found in tendons and cartilage. Collagen contributes to meat toughness and is, therefore, an example of which type of protein?

1. Why does CH30 evaporate faster than water?

How does concentration affect our daily lives in science?