Table of Contents
What is the chemical equation of CA?
Calcium + Oxygen → Calcium oxide. Calcium + Water → Calcium hydroxide + Hydrogen. Zinc + Sulphuric acid → Zinc sulphate + Hydrogen. Lead sulphate + Ammonium hydroxide → Ammonium Sulphate + Lead hydroxide.
What is the word equation for CA Oh?
Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca(OH)2. It is a colorless crystal or white powder and is produced when quicklime (calcium oxide) is mixed or slaked with water….Calcium hydroxide.
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| Properties | |
| Chemical formula | Ca(OH)2 |
What is the word equation for CA O2?
Word equation of CA + O2 =CaO.
What type of reaction is Ca and H2O?
combination reaction
Answer: This reaction is a combination reaction, as calcium oxide and water combines to form a single product that is calcium hydroxide.
What is the word equation for calcium and water?
Ca+2H2O→Ca(OH)2+H2↑
What type of reaction is Ca and h2o?
How does Ca react with water?
Reaction of calcium metal with water – When calcium metal reacts with water, it reacts less violently. It produces a hydroxide known as calcium hydroxide (a cloudy white precipitate), and the bubbles of hydrogen gas produced are stuck to the surface of calcium. Due to which it floats over the water surface.
Is Ca H2O exothermic?
The formation of slaked lime (calcium hydroxide, Ca(OH)2) when water is added to lime (CaO) is exothermic. CaO(s) + H2O (l) → Ca(OH)2(s) This reaction occurs when water is added to dry portland cement to make concrete, and heat evolution of energy as heat is evident because the mixture becomes warm.
What happens when Ca reacts with water?
What is a word equation?
A word equation represents a chemical reaction using the names of the substances involved. Word equations do not show any chemical symbols or formulae.
What is a word equation for a chemical reaction?
A word equation is a short-hand way of describing a chemical reaction. reactant(s) → product(s) A word equation shows the names of the reactants on the left hand side. If more than one reactant is present then the names of each reactant are separated by a plus sign (+). An arrow is used to show the direction of the reaction: →
What is the arrow in the general form of the equation?
The arrow in the general form of the equation above shows the direction in which the chemical reaction proceeds: that is, we start with “reactant” and we end up with “product”. In order to write a word equation to represent a chemical reaction I must: write the name of the reactant (starch)
How do word equations help in learning chemistry?
Word equations help in learning chemistry because they reinforce the thought process involved in writing a chemical reaction or equation. Word Equation Examples The chemical reaction 2 H 2 (g) + O 2 (g) → 2 H 2 O(g) would be expressed as: