calcium floats on wahter because the hydrogen gas evolved on reaction sticks to the walls of the container where reaction is taking place....
Calcium nitrate can react with metals like magnesium and aluminum to form their respective nitrates. It is not typically reactive with most other metals since calcium tends to be more stable in its compounds.
Potassium, sodium, and lithium are the most reactive metals to water from the options provided. They react vigorously with water, producing hydrogen gas and forming alkaline hydroxides. Calcium and magnesium are less reactive compared to the other three metals when exposed to water.
Reactive metals like sodium, potassium, calcium, and magnesium react with water to form metal hydroxides and hydrogen gas. When these metals react with acids, they form metal salts and release hydrogen gas.
NOPE! Hope you get through the horrible experience which is quest!
HYdrogen. The Group (II) Alkaline Earth elements, of which calcium is one, react in a similar way the Group (I) Alkali metals, but less vigorously. So like sodium and water produces sodium hydroxide and hydrogen . # Then calcium and water produce calcium hydroxide and hydrogen. Here is the reaction eq'n. Ca(s) + 2H2O(l) = Ca(OH)2(aq) + H2(g) .
The alkaline metals react with water, and Lithium and Sodium float on the water whilst reacting.
Calcium nitrate can react with metals like magnesium and aluminum to form their respective nitrates. It is not typically reactive with most other metals since calcium tends to be more stable in its compounds.
Such metals are Sodium and Potassium (and all the alkali metals).
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).
Technically salt does not react with water. It will dissolve in water which is not the same thing as causing a chemical reaction. Calcium by itself does not react with salt water -- it is dissolved into the water and is a crucial element of life for many salt-water species. Some compounds containing calcium may react with (or in) salt water.
At least all the alkali metals, calcium, strontium, barium, fluorine, chlorine, and bromine.
The metals that lose one electron when they react with water to form alkaline solutions are group 1 and group 2 metals such as lithium, sodium, potassium, calcium, and magnesium. These metals are highly reactive and readily donate their outermost electron to form cations that react with water to produce alkaline solutions.
Most metals do not react with water, especially at room temperature. It is easier to state which metals DO react with water. Those would be Li, K, Sr, Ca and Na. Those reacting with hot water (steam) would be Mg, Al, Zn and Cu. Most other metals do NOT react with water.
Calcium (Ca) does react with water at room temperature, although the reaction is not as vigorous as that of more reactive alkali metals. When calcium is added to water, it forms calcium hydroxide and hydrogen gas. The reaction can produce bubbles of hydrogen, which can ignite if the heat generated is sufficient. Overall, while the reaction occurs, it is relatively mild compared to other metals in the same group.
alkali metals react violently in cold water
Potassium, sodium, and lithium are the most reactive metals to water from the options provided. They react vigorously with water, producing hydrogen gas and forming alkaline hydroxides. Calcium and magnesium are less reactive compared to the other three metals when exposed to water.
Metals such as zinc, aluminum, and iron can react with acids but not with water. When these metals react with acids, they undergo a chemical reaction that produces hydrogen gas and a salt. In contrast, these metals do not react with water to produce hydrogen gas.