What changes does sugar undergo when heated in a spoon over the flame?

Select one:
A. A physical change, then a chemical change
B. Two physical changes
C. Two chemical changes
D. A chemical change, then a physical change

a

Explanation:

The answer is..

Explanation:

Maybe I.D.K. it's probably C or A but I would go for C

Hope this helped

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the equation that correctly represent the reaction for formation of ammonia is

n2+ 3h2 → 2nh3 (answer d)

1 mole of nitrogen gas (n2) react with 3 moles of hydrogen gas (h2) to form 2 moles of ammonia ( nh3). this is in a process known as haber process were iron is used as a catalyst and reaction take place that a higher temperature and pressure. the process is exothermic hence energy is released.

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.