Question

why is the chemical formula for sucrose C12H22O11?

Answer 1

From where did you derive the empirical formula C12H22O12? The empirical formula (and molecular formula) of sucrose is C12H22O11. This has been determined by precise analysis and the molecular structure of sucrose.

Answer 2

@TwilightSparkle2015 Thanks so much!

Answer 3

your welcome can you help me

Answer 4

sure what do you need help with

Answer 5

An oil skimmer is a machine used to separate a mixture of oil and water. After an oil spill in a body of water, skimmers are used to remove the floating oil from the water. Which property is being used to separate oil and water in this way?

A.boiling point
B.melting point
C.chemical reactivity
D.density

Answer 6

I think its D.density because the oil floats because of its lower density

Answer 7

@TwilightSparkle2015 I hope that helped:)

Answer 8

OH MY GOD ITS RIGHT

Answer 9

I'M DOING STUDY ISLAND

Answer 10

I have study island too:) you can always ask me if you need help,i know it can be hard sometimes

Answer 11

I FANNED YOU

Answer 12

I JUST BECAME YOUR FAN:)

Answer 13

Which of the following statements is false?
A.Two or more different substances combine physically to form a mixture.
B.Two or more different atoms combine chemically to form an element.
C.Two or more atoms combine chemically to form a molecule.
D.Two or more elements combine chemically to form a compound.

Answer 14

i believe its B

Answer 15

Yup. B is False.

Answer 16

thank you

Answer 17

What defines a mixture?
cannot be broken down into simpler substances

created through a chemical reaction

described by a chemical formula

can be broken down into its basic substances through physical means