Remembering those Science equations (1 Viewer)

[Dj.Willskiesss]

Anyone have any hints on remembering those freaking science equations.
e.g acid + base > salt +water

 

[chadmeleon]

Well, my system might not work for you, but anyhow -->

Firstly they all have salts so thats easy

acid + base --> salt + water (water is a BASIC need)

acid + metal --> salt + hydrogen ( hydrogen is randomly on the METAL side)

acid + CO2 --> salt + CO2 + water (dunno but its the only one with CO2)

Hope this was kinda helpful...

 

[backrowcentre]

I don't remember learning this crap.

 

[stoj19]

dam I have trouble remembering these too!

 

[acevipa]

Combustion Reaction:
Fuel + Oxidiser > Products + Energy

Corrosion Reaction:
Eg. Iron + Oxygen > Water + Rust

Precipiation Reactions:
Soluble Substance A + Soluble Substance B > Insoluble Substance C + Insoluble Substance D

Acids on Metals:
Acid + Metal > Salt + Hydrogen

Acids on Carbonates:
Acid + Carbonate > Salt + Water + Carbon Dioxide

Neutralisation Reactions:
Acid + Base > Salt + Water

Decomposition Reaction:
Eg. AB > A + B

Seriously, read over them a few times and write them down tonight. And repeat that tomorrow morning as well as just prior to your exam. Good Luck!

 

[Dimplez]

ty acevipa

 

[watatank]

*in combustion reactions CO₂ + H₂O are always products. The rest depend on how many carbons in the fuel

*iron + oxygen --> rust (water is not a byproduct although it does play a part in the reaction)

*you can think of precipitation reactions like

AB + CD -> AD + BC

where A, C are positively charged and B and D are negatively charged. see if those two compounds are broken up (like if they are in water perhaps) then the positive ion will join with the negative of the other compound and the negative ion will join with the positive of the other compound, making two new compounds.


also don't forget to balance your equations too.

 

[Aerath]

And states.