Write the chemical formula for magnesium sulfate that is made up of one atom of magnesium, one atom of sulphur and four atoms of oxygen
How can you separate a mixture of salt, pepper and pebbles?
1- use a strainer to get the pebbles
2- add water to the resulting salt and pepper
3- pass the solution through a filter and get the pepper
4- evaporate the water and get the salt
Which one has a higher concentration:
a) 100 mL of water + 100 g of sugar
b) 50 mL of water + 100 g of sugar
What is the difference between a colloid and a suspension?
The particles in a colloid are dispersed throughout but are not heavy enough to settle out. The particles in a suspension, however, are more or less evenly dispersed throughout the liquid or gas but eventually settle down