What is the word equation for water? 2H2(g) + O2(g) → 2H2O(l ) Chemical equations give the following information about chemical reactions.
What is the meaning of word equation class 10?
Hint: Word equation means we have to write the chemical reaction in the form of words. Chemical reaction means we have to mention the chemical symbols of the elements to represent the reaction.
What is photosynthesis word equation?
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
What is the word equation for oxygen?
5.2: Chemical Equations
• Aug 13, 2020
What is the word equation for H2O?
The equation for H20 is H2O= H2+02.
What is a skeleton equation?
Skeletal chemical equation is a representation of a chemical reaction using chemical formulae of reactants and products. In skeletal chemical equation the mass no of elements in reactant side is not equal to the mass no of elements in product side. … For example: Mg + O2 → MgO, it’s a skeleton equation.
What is the word equation for sodium and water?
sodium + water → sodium hydroxide + hydrogen.
What is called chemical equation?
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side with a plus sign between the entities in both the reactants and the products and an arrow that …
What is the word equation for photosynthesis Class 7?
A simple word equation that can be used to describe the process of photosynthesis is carbon dioxide + water —> glucose + oxygen + water. A balanced chemical equation for the process can be written as 6CO2 + 6H2O —> C6H12O6 + 6O2.
What is photosynthesis very short answer?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.
Why are plants green?
Plants (plus algae and certain bacteria) absorb light to make sugars, providing the plant with energy and some other useful biochemical products which the plant requires to grow successfully. … As such, plants look green because they absorb red light most efficiently and the green light is reflected.
What is the drawback to word equations?
Word equations can be very useful, but do have one major drawback. They cannot be used for any quantitative work. A word equation does not tell how many moles of each material are needed or how many moles of product are formed.
Why is it important to write chemical equations instead of word equations?
In chemistry, a word equation indicates the order of events of a chemical reaction. The number of moles and types of reactants yield the number of moles and types of products. Word equations help in learning chemistry because they reinforce the thought process involved in writing a chemical reaction or equation.
What is H2O word?
Dihydrogen Monoxide (water) H2O.
Why is it called H2O?
The scientific name for water is H2O. It is called H2O because it has two atoms of hydrogen (H) and one atom of oxygen (O). … Water molecules move so fast that they actually break apart from each other and escape into the air as water vapor or steam.
What is a balanced skeleton equation?
The key difference between balanced equation and skeleton equation is that balanced equation gives the actual number of molecules of each reactant and product involved in the chemical reaction whereas skeleton equation gives only the reactants of the reaction.
Which is the skeleton reaction?
The total number of atoms of each element on the reactant side is not equal to the number of atoms of the same element on the product side. This equation is also called a skeletal equation.
What is the chemical equation of potassium and water?
K+H2O→KOH+H2(g): Like other group 1 metals, potassium reacts readily with water to generate hydrogen gas. Potassium is used in glass making and is found in fertilizers and soaps.
What is the word equation for lithium reacting with water?
2Li + 2H2O -> 2LiOH + H2.
What are the 2 types of chemical equations?
Classifying Chemical Reactions
- Synthesis reactions. Two or more reactants combine to make 1 new product. …
- Decomposition reactions. A single reactant breaks down to form 2 or more products. …
- Single-replacement reactions. …
- Double-replacement reactions. …
- Combustion reactions.
What is balanced equation give example?
A balanced chemical equation occurs when the number of the atoms involved in the reactants side is equal to the number of atoms in the products side. In this chemical reaction, nitrogen (N2) reacts with hydrogen (H) to produce ammonia (NH3). The reactants are nitrogen and hydrogen, and the product is ammonia.
What is a parasite class 7?
Parasites are organisms that depend upon another organism (host) for food and cause harmful effects or dieseases to the host. Examples: Cuscuta (Amarbel), mosquitoes and head lice. saprotrophs are orgnisms that obtain nutrition from dead and decaying organic matter. Examples: Fungi and some bacteria.
What are stomata Class 7?
Stomata are tiny pores or opening on the surface of a leaf. … (i) Evaporation of water in plants in the form of vapour takes place through stomata during transpiration. (ii) Exchange of gases (oxygen and carbon dioxide) also takes place through stomata. Question7.
What is photosynthesis class 7th?
The process by which green plants make their own food (like glucose) from carbon dioxide and water by using sunlight energy (in the presence of chlorophyll) is called photosynthesis. … The leaves of a plant can synthesise food because they contain a green pigment chlorophyll (which is necessary for making food).