Experiment 7 (chemical reaction)

Became white powdered

Glauber’s salt ​

Na 2SO 4 ● 10 H 2O (s)      Na 2SO 4(s)   +  10 H 2O(g)​

it moist and from solid to liquid

exposing anhydrous calcium chloride to the atmosphere.​

CaCl 2(s)  +  H 2O (l)             CaCl 2● x H 2O (aq)​

No Reaction

Blue Vitriol expose into atmosphere

White crystal

CuSO 4 ● 5 H 2O (s)  + heat   CuSO 4 (s)  + 5 H 2O (g)

Heated Blue vitriol

turns back to light/sky blue crystals

CuSO 4 (s)   +   5 H 2O (l)     CuSO 4 ● 5 H 2O (s)  ​

white crystal                         light/sky blue crystal ​

(added a water to the heated blue vitriol)

solute

is the one that dissolves​

solvent

is the one that does the dissolving​

No Reaction

BaCl 2 (s) (white) and K2CrO4 (s) (egg yellow)

dissolves in water 

BaCl 2 and K2CrO4  + water

egg yellow precipitate​

BaCl2(aq) + K2CrO4(aq)     BaCrO4(s)     +     2 KCl(aq)​

Precipitate

a reaction between two solutions forming a solid substance        ​

blue green solution and brown gas  

concentrated nitric acid  ​

(pure substance):​

4 HNO3(l) +**Cu**(s)   Cu(NO3)2(aq) + 2 NO2(g)   +  2 H2O(l)

blue solution​ and yellow gas 

diluted nitric acid solution

8 HNO3(aq) +3 **Cu**(s)   Cu(NO3)2(aq) + 2 NO(g) + 4 H2O(l) 

Hydrolysis​

a chemical process of decomposition involving the splitting of a bond and the addition of the  hydrogen cation and the hydroxide anion of water

yellow, clear liquid

Water + ferric chloride

brown acidic solution

  Water + ferric chloride + heat

Flour floats  above the water

water + flour

flour mixed in the water

water + flour + soap

  foam or suds​

Tap water (hard water)  + soap solution

white precipitate​

Tap water (hard water) + lime water , Ca(OH) 2

precipitate was removed 

Tap water (hard water) + lime water , Ca(OH) 2 + Na2CO3