All chemical equations and reaction phenomena in high school

If you want to extrapolate the problem, you can do the ion equation.

H2+Cl2==2HCl ignited, pale flame 2Fe+3Cl2==2FeCl3 ignited, brownish-yellow smoke.

Cu+Cl2==CuCl2 is lit, blue smoke.

Fe3+ +3SCN- == Fe(SCN)3 blood red substance (not precipitate).

MnO4- +4H2O +5Fe2+ == Mn2+ +8OH- +5Fe3+ ferrous ions fade the acidified potassium permanganate solution.

Fe2+ +2Oh- ==Fe(OH)2 4Fe(OH)2+O2+2H2O==4Fe(OH)3 Sodium hydroxide is added to ferrous sulfate solution, white precipitate appears, quickly turns gray-green, and finally turns red-green.

2Na+O2==Na2O2 ignites, and the yellow flame is generated, resulting in a yellowish substance.

s+O2==SO2 ignites, a light blue flame in the air, and a blue-purple flame in oxygen.

For the time being, I only think about that, so let's talk about ......

You can go to a used book stall and buy a book like the general review of the college entrance examination, which is all on it.

1.The chemical equation for the reaction of aluminum with a sodium hydroxide solution.

2al＋2naoh＋6h2o＝2na〔al（oh）4〕＋3h2↑2.The chemical equation for the reaction of silicon with a sodium hydroxide solution.

si 2naoh h2o na2sio3+2h2 Note: The new textbook no longer has the writing and expression of naalo2!!

1 2 Aluminum plus 6 sodium hydroxide 2 1 Silicon plus 2 sodium hydroxide to generate.

The first. Since there is no subscript. Will just see.

2 al + 2 naoh + 2 h2o ==== 2 naalo2 + 3h2 ↑

The 2nd. si + 2naoh + h2o ==== na2sio3 + 2h2↑

2al+2naoh+2h2o=2alnao2+3h2 (hit gas symbol), si+2naoh+h2o=na2sio3+2h2 (hit gas symbol), hope to adopt, thank you.