Metal oxides are basic in nature and react with acids to form salts and water. Non-metal oxides are acidic in nature and react with bases to form salts and water. Metals generally react with acids to form salts and hydrogen gas.
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Hydrogen react with metals and hydrides are formed.
Many transition metals will react with acids to form a salt and hydrogen gas. For example, zinc will react with hydrochloric acid to form the black-colored solid zinc chloride and hydrogen. The formula is: Zn+2HCl-->ZnCl2+H2. The group 1 and 2 metals will often react with water, sometimes explosively. Sodium reacts with water to produce sodium hydroxide and hydrogen. The formula is: 2Na+2H2O-->2NaOH+H2. The reactivity series of metals (see wikipedia -Reactivity series) shows a list of the metals that react.
Hydrogen does not react with water. In an acid, hydrogen can react to form hydrogen gas and a salt.
Many elements and compounds can react with hydrogen gas, such as oxygen to form water, halogens to form hydrogen halides, and metals to form metal hydrides. In general, hydrogen gas can react with many elements and compounds under the right conditions.
Bases can react with acids to form salts and water. Metals can also react with acids to produce hydrogen gas and a salt. Additionally, carbonates and bicarbonates can react with acids to form carbon dioxide gas, water, and a salt.
All metals, if they do react with water at all, react faster in steam than in water. However, the metals that react SLOWLY with cold water are the metals from Group-IIA(Magnesium, Calcium, etc).
Water and oxygen can be used to compare the reactivity of metals. More reactive metals will react with water to form metal hydroxides and hydrogen gas, and with oxygen to form metal oxides. Less reactive metals may not react with water or oxygen at all.
Do you mean seperately?If yes, then:When they react with air, it is combustion: 2Ca + O2 --> 2CaOWith water, they simply come to be hydroxides: Na + H2O --> NaOH + H2When they react with acids then a salt and hydrogen gas is formed: Zn +2HCl --> ZnCl2 + H2
Alkaline earth metals are reactive and tend to lose two electrons to form a 2+ cation. They react with water to produce hydrogen gas and hydroxide ions. They also form oxides when they react with oxygen in the air.
Alkali metals react vigorously with water, producing hydrogen gas and forming alkaline solutions. They react with oxygen to form oxides, and with noble gases they can form compounds under certain conditions, although the reactivity is not as intense as with water or oxygen.