Question

the physical changes water undergoes as it is heated or cooled

Answer 1

The first change of state is melting (changing from a solid to a liquid). The temperature stays the same while a substance melts. For water, this temperature is 0°C because the melting point for water is 0°C.


The second change of state is boiling (changing from a liquid to a gas). The temperature stays the same while a substance boils. For water, this temperature is 100°C because the boiling point for water is 100°C.

Answer 2

let me look for something a little better

Answer 3

ok

Answer 4

Phase changes are physical changes also, if they are caused by heating or cooling. If you take some water and you heat it up and it changes to gas, that is a physical change. You still have water, only now it is steam instead of liquid.

Answer 5

I am still looking

Answer 6

YES Found it!

As a result, many of the molecular bonds present in the liquid (water) are broken.

These broken bonds result in molecules being spaced out which forms a gas. In the case of water, this gas is what we know as steam.

That's the chemical side of it (sort of).

As for what would visibly happen when water is heated, it depends on the temperature. The water would boil at 100 degrees celsius which would lead to bubbling and evaporation. Steam is formed.

Answer 7

which one do i write the last one?

Answer 8

I would

Answer 9

k

Answer 10

is it ALL OF IT? or some of it

Answer 11

let me splice it together quick

Answer 12

ok

Answer 13

The first change of state is melting (changing from a solid to a liquid). The temperature stays the same while a substance melts. For water, this temperature is 0°C because the melting point for water is 0°C. The second change of state is boiling (changing from a liquid to a gas). The temperature stays the same while a substance boils. For water, this temperature is 100°C because the boiling point for water is 100°C.
As a result, many of the molecular bonds present in the liquid (water) are broken. These broken bonds result in molecules being spaced out which forms a gas. In the case of water, this gas is what we know as steam.

Answer 14

good?

Answer 15

huh?

Answer 16

thanks

Answer 17

ah, glad to be of assistance