1. acids are substances that produce hydrogen ions (h+) when dissolved in water. lemon juice is an example of an acid. a. what does lemon juice taste like? b. what does it feel like if lemon juice gets in your eye? 2. bases are substances that produce hydroxide ions (oh-) when dissolved in water. hand soap is an example of a base. a. what does soap feel like? b. what does soap taste like? c. what does it feel like if soap gets in your eye?

c is the answer because when something is left after something evaporates that shows the chemical change.

explanation:

venn diagram is pictorial representation with of circles showing the relation between two finite sets or things. the intersection part of two circles conveys the relation present in between those sets or things.

here in the venn diagram of sand and salt two circles represent sand and salt. but the area falling under the intersection of these circle represents the mixture of sand and salt.

so, in a venn diagram the mixture will be placed in a middle that is in between the intersection of two circles.

c

explanation:

d) a person who learns about the world by observing it.

explanation:

scientist are people who discover why and how things are done and made in the world.