thanks for any help with these translations into scientific notation:
1. magnesium ribbion is dropped into an
aqueous solution of hydrochloric acid
2. a solid peice of copper is burned in
pure oxygen
3. zinc carbonate is strongly heated in a crucible
4. calcium chloride is mixed with silver nitrate in an aqueous solution
5. chlorine gas is passed over solid potassium bromide
6. magnesium sulfate pentahydrate is heated strongly in an evaporating dish.
1.
Mg + HCl ==> MgCl2 + H2
2.
Cu + O2 ==> Cu2O
3.
ZnCO3 ==> ZnO + CO2
4.
CaCl2 + AgNO3 ==> AgCl + Ca(NO3)2
5.
Cl2 + KBr ==> Br2 + KCl
6.
MgSO4*5H2O + heat==>MgSO4 + H2O
I haven't balanced any of these. You need to learn general types of reactions so you know what products will be formed.
To express these reactions in scientific notation, we need to represent the numbers using powers of 10.
1. Magnesium ribbion is dropped into an aqueous solution of hydrochloric acid.
- Magnesium combines with hydrochloric acid to form magnesium chloride and hydrogen gas.
- The balanced equation is: Mg + 2HCl -> MgCl2 + H2
2. A solid piece of copper is burned in pure oxygen.
- Copper reacts with oxygen to form copper(I) oxide.
- The balanced equation is: 2Cu + O2 -> 2Cu2O
3. Zinc carbonate is strongly heated in a crucible.
- Heating zinc carbonate decomposes it into zinc oxide and carbon dioxide.
- The balanced equation is: ZnCO3 -> ZnO + CO2
4. Calcium chloride is mixed with silver nitrate in an aqueous solution.
- Calcium chloride and silver nitrate react to form silver chloride and calcium nitrate.
- The balanced equation is: CaCl2 + 2AgNO3 -> 2AgCl + Ca(NO3)2
5. Chlorine gas is passed over solid potassium bromide.
- Chlorine gas reacts with potassium bromide to produce bromine gas and potassium chloride.
- The balanced equation is: Cl2 + 2KBr -> Br2 + 2KCl
6. Magnesium sulfate pentahydrate is heated strongly in an evaporating dish.
- Heating magnesium sulfate pentahydrate removes the water molecule, leaving behind magnesium sulfate.
- The balanced equation is: MgSO4 * 5H2O -> MgSO4 + 5H2O
Remember to always balance the equations to ensure that the number of atoms on both sides is equal.