If you dissolve 5 grams of salt in 100 grams of water, what will be the total mass of the resulting saltwater mixture?

Exactly 100 grams, because the salt disappears.

Slightly more than 100 grams, but less than 105 grams.

Less than 100 grams, because some water evaporates.

Why is dissolving a spoonful of sugar in water considered a physical change?

Because the sugar is still present, just in a different form.

Because the process creates bubbles and a new gas.

Because the water's temperature changes significantly.

Because the sugar can never be separated from the water again.

The water becomes colored and tastes sweet.

The pitcher feels heavier than before.

The volume of the liquid in the pitcher increases slightly.

The mixture needs to be stirred for a long time.

They are invisible and spread out.

They are clumped together at the bottom.

They have transformed into water particles.

It has melted and turned into a liquid.

It has been chemically destroyed by the heat.

It has broken down into invisible particles that have spread throughout the tea.

It has evaporated from the cup along with the water vapor.