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calcium floats on wahter because the hydrogen gas evolved on reaction sticks to the walls of the container where reaction is taking place....
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What metals would calcium nitrate react with?
Calcium nitrate don't react with metals; a possible reaction is with the water from the solution.
What gas is given off when calcium is mixed with water?
The calcium metal will react with the water to form calcium oxide and give off Hydrogen gas.
Small pieces of calcium are added to a beaker of cold water why do the calcium pieces move up and down?
Calcium oxidizes when combined with water. If you were to pour calcium powder into a beaker of water, you would see a much more dramatic effect, as the increased surface area of the powder catalyses the reaction. Also, calcium pellets (resembling gravel) react similarly with water, oxidizing and bubbling, and raising the temperature of the water. Your calcium samples must have been small enough to float to the surface on the gaseous bubbles created during the oxidation, and sank to the bottom once again after the bubbles were released.
What gas is produced when calcium metal is dropped in water?
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) .
Which metal element reacts explosively with water?
Lithium, sodium, potassium. rubidium, cesium, francium, calcium, strontium, barium and radium all react with varying degree of vigor with water to produce hydrogen gas. Other metals also will but not as vigorously.
What metals would calcium nitrate react with?
Calcium nitrate don't react with metals; a possible reaction is with the water from the solution.
What are Two reactive metals that float in water?
The alkaline metals react with water, and Lithium and Sodium float on the water whilst reacting.
Which metals react slowly with cold water but vigorously with steam?
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).
Two metals that will float on water and react very quikly to form an alkalis?
Such metals are Sodium and Potassium (and all the alkali metals).
What will react with water?
At least all the alkali metals, calcium, strontium, barium, fluorine, chlorine, and bromine.
Which two metals explode in water?
Group 2 metals (alkaline earth metals), calcium and barium would be examples
Which metals does not react with water?
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.
How do alkali metals react to cold water?
alkali metals react violently in cold water
Why are sodium and calcium not found as native metals?
They are both extremely reactive. They react spontaneously with air, water, and even the weakest of acids.
Why does metal NOT float on water?
If the proposal is to float the metal on water, most metals won't float. That's because most metals are more dense than water and will sink. Note that this proposition sets aside any reaction that might occur between the metal and water. This is because there are some metals that react with water, and some react violently. See the link below to the related question about the metals that will float on water. There aren't many of them. If the metal you are considering isn't on the list of metals that willfloat on water, then it won't.
Does calcium react in acid?
Yes. Calcium will react vigorously with acid and even water.
Why non -metals do not react with water?
Sulfur doesn't react with water.
