Q. What is the position of a electron in an atom?
Electrons are found in shells or orbitals that surround the nucleus of an atom. Protons and neutrons are found in the nucleus. They group together in the center of the atom.
Q. Where stoichiometry is used today?
Stoichiometry is at the heart of the production of many things you use in your daily life. Soap, tires, fertilizer, gasoline, deodorant, and chocolate bars are just a few commodities you use that are chemically engineered, or produced through chemical reactions.
Q. Are reactants always on the left?
In a chemical reaction, a double arrow indicates an equilibrium situation. Reactants are on the left and products are on the right.
Q. Which side is reactant?
left
Q. Are on the left side of the chemical equation?
A chemical equation is written with the reactants on the left side of an arrow and the products of the chemical reaction on the right.
Q. Is always represented on the left hand side of the chemical reaction?
A chemical equation is the symbolic representation of a chemical reaction. The reactants (the starting substances) are written on the left, and the products (the substances found in the chemical reaction) are written on the right.
Q. Are all substances made of atoms?
All elements are made up of atoms. ➢ Atoms are made up of protons, neutrons, and electrons. Two different kinds of atoms can combine to form a compound. A molecule is a combination of atoms that cannot be broken apart while still retaining the same properties as the larger substance that it is a part of.
Q. What are three types of chemical reactions?
Types of 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.
Q. Is it possible to have a coefficient of 0 in any chemical equations?
The stoichiometric coefficient of any species that does not participate in a given chemical reaction is zero. The principles of stoichiometry are based upon the law of conservation of mass.
Q. 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.
Q. What is the skeleton equation for water?
2H2(g) + O2(g) → 2H2O(l ) Chemical equations give the following information about chemical reactions.
Q. Are skeleton equations balanced?
Write the skeleton equation with the correct formulas. Count the number of each atom or polyatomic ion on both sides of the equation (Table below). The nitrate ions and the chlorine atoms are unbalanced. The equation is now balanced since there are equal numbers of atoms of each element on both sides of the equation.
