I have this question in my lab report. I lear chemistry first year and I have no idea. One thing that I came up that these may be complex or some thing like that....
Explanation will be very apreshiated :)
2007-03-22 22:42:04 · 6 answers · asked by lenok_03 1 in Science & Mathematics ➔ Chemistry
Mg2+ and Na+ are neutral in water. Since their hydroxides are strong bases and by definition want to dissociate in water, they aren't going to try to react with water. Similarly, an anion like Cl-, Br-, or NO3- will be neutral in water since they are the anions of strong acids. HCO3 and H2CO3 are not strong acids, though. So if you put CO3^2- or HCO3- in water, they will pull H+ off water to form those acids. What they leave behind from the water molecules is hydroxide (OH-). That makes them bases.
2007-03-22 23:47:15 · answer #1 · answered by chemmie 4 · 0⤊ 2⤋
hello!just some humor!
Chemistry is the branch of science concerned with blowing things up and poisoning people. Fill soap bubbles with methane then light them. If you can't find any methane, the folks in Biology can usually find some. If that doesn't pan out, visit the school cafeteria for dinner and then just wait awhile.
The thermite reaction
Light sodium fires in the sink.
Test how well propane burns by lighting the gas taps on fire.
Chemical Synthesis
Professional chemists working in the chemical weapons, insecticide, weedkiller and food industries have to synthesize new chemicals on a regular basis. This is done by first designing the chemical as a 'ball and stick model' (made from ping pong balls and Pocky), then shrinking thousands of these down to molecular size with a shrink ray beam (which chemists don't want to admit was made by those jolly chaps over in Physics). The individual atoms are assigned elemental values by painting them different colors.
2007-03-22 23:08:58 · answer #2 · answered by Byzantino 7 · 0⤊ 2⤋
A base (according to the definition of Bronsted) is any substance which will bind H+ ions. With these salts, it is not the metal ion but the carbonate or hydrocarbonate ion. NaHCO3 will act as a base only when reacting with low pH solutions, forming H2CO3 (which will then react to H2O and CO2).
2007-03-22 22:58:38 · answer #3 · answered by jorganos 6 · 1⤊ 0⤋
Truly speaking, they are not bases but SALT;
Hiwever, their pH is basic since there are salts of strong bases respectively Mg (OH)2 and NaOH and weak acids H2CO3 so their pHis higher than 7
2007-03-22 23:01:47 · answer #4 · answered by maussy 7 · 1⤊ 0⤋
When reacted with acids, water a salt and carbon dioxide is produced--> Hence a neutralization reaction.
It's consistent with all carbonates.
Carbonate + Acid --> Water + Salt + Carbon Dioxide
and these are all neutralization reactions.
2007-03-22 22:54:31 · answer #5 · answered by Chocolate Strawberries. 4 · 1⤊ 2⤋
Base..... No....... They're salt......
Basic.... Yes...... Because Mg2+ and Na+ doesnt undergo any hydrolyses.. Therefore,
CO3 2- is hydrolysed became HCO3- and OH- solution...
HCO3 - is hydrolysed became H2CO3 and OH- solution....
These OH- presence makes the salt become basic.....
Consult Hydrolyses chapter for more details......
peace
vixklen
2007-03-22 23:21:45 · answer #6 · answered by vixklen 3 · 0⤊ 1⤋