1. Be prepared to to use everyday examples to explain physical change and chemical change.
2. Be able to use the Periodic Table to determine number of protons, neutrons, and electrons in an atom.
3. Make sure you know what the 15 means in Nitrogen-15 and how it is different from the Nitrogen listed in the Periodic Table.
4. Explain what cooling something does to the atoms.
5. Explain how compressing something will help it go from a gas to a liquid, or from a liquid to a solid.

Question

BaconLover · Answer

@JustSaiyan @Ultrilliam @Warriorz13

JustSaiyan · Answer

When an object is hot, it's atoms move very fast, but as it cools, the atoms slow

JustSaiyan · Answer

Under extreme compression, dense water can enter its solid form(ice) rather than maintain the more energetic liquid form(water)

BaconLover · Answer

is that numbers one and five?

JustSaiyan · Answer

4 and 5

BaconLover · Answer

oh ok thnx

JustSaiyan · Answer

3: Nitrogen-15 the 15 is its atomic number.

Warriorz13 · Answer

I feel like the "15" Is Atomic number

Warriorz13 · Answer

oh... nvm -_-

JustSaiyan · Answer

It is different from the nitrogen in the periodic table because it is an Isotope stable form.

JustSaiyan · Answer

Not sure How I am supposed to answer 1 or 2

BaconLover · Answer

are you going from 5 and up?

Warriorz13 · Answer

He is

BaconLover · Answer

ill do one and two myself

JustSaiyan · Answer

I am not sure what the question is for them.

JustSaiyan · Answer

They seem more like instructions or requirements

BaconLover · Answer

ok

JustSaiyan · Answer

Sorry I can't help further.

BaconLover · Answer

ur fine

BaconLover · Answer

OK for number one it is pretty much asking for an example of physical change and an example of chemical change for physical change i had someone boiling water because of the water it vaporizes.. i need something for chemical

Warriorz13 · Answer

Burning wood

BaconLover · Answer

how tho? like how is it a chemical change?

Warriorz13 · Answer

When you burn wood, the carbon in the wood reacts with oxygen in the air to create ash and smoke, and energy in the form of light and heat.

Warriorz13 · Answer

It's reacting and also creating heat.

BaconLover · Answer

ok thank you dear!

Warriorz13 · Answer

Your welcome baby

Warriorz13 · Answer

What about 2?

BaconLover · Answer

idk that one and honestly i hope he doesnt ask that on the dba

Warriorz13 · Answer

x'D
Tag me in any more of your question love

BaconLover · Answer

ok