Which of the compounds can exist as optical isomers (enantiomers)? A central carbon atom is bonded to a chlorine atom, a hydrogen atom, a bromine atom, and a carboxylic acid group. A central carbon atom is bonded to a chlorine atom, a fluorine atom, a hydrogen atom, and a bromine atom. A central silicon atom is bonded to two chlorine atoms and two methyl groups.

A central silicon atom is bonded to two chlorine atoms and two methyl groups

Explanation:

Enantiomers are chiral molecules that are mirror images of each other but cannot be superimposed on each other. In this case, a silicon atom, bonded to two chlorine atoms and two methyl groups, when its bonds are rotated, can appear like mirror images of the previous molecule.

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

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.