How do chemical equations work?

Answer 1

How does the cash economy and banking work? See here.

In the banking industry, there is an adage that states, "for every credit there must be," "a corresponding debit." What does this mean?

If you perform a service for someone and they pay you via check for the fee, you deposit this into your account as a credit item. The bank then creates a DEBIT item on your customer's account for this credit. The balance of your account is balanced and the debit and credits match.

In what way does this apply to chemistry, then? Generally speaking, we begin with a finite amount of reactant. For example, methane, which warms houses, has a balanced equation that can be written.

#CH_4(g) + 2O_2(g) rarr CO_2(g) + 2H_2O(g) + Delta#
Now charge and mass are balanced in this equation. Are they? For every reactant particle, is there a corresponding product particle? If there are not you know it is not balanced and therefore NOT a valid representation of reality. And of course, these atoms represent massive quantities, i.e. #16 *g# of methane gas, and #64*g# dioxygen gas reactant, and INEVITABLY #80*g# of water and carbon dioxide product. Why #"inevitably?"#
You will note that I included the #Delta# symbol to represent the heat of the reaction. This #"latent heat of reaction"# is also conserved. When #C=O# bonds form, a given and measurable amount of heat is produced. This also follows strict laws of conservation.
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Answer 2

Coefficients are used to balance equations, ensuring that the same number of atoms of each element appear on both sides. Chemical equations represent chemical reactions by showing the reactants on the left side and the products on the right side. The reactants undergo chemical changes to form the products, and the number of atoms of each element remains constant throughout the reaction (law of conservation of mass).

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Answer 3

Chemical equations represent the reaction between different substances. They show the starting materials (reactants) and the resulting substances (products). In a chemical equation, reactants are written on the left side of the equation and products are written on the right side. The reaction arrow (→) indicates the direction of the reaction from reactants to products.

Chemical equations must follow the law of conservation of mass, which states that matter cannot be created or destroyed in a chemical reaction, only rearranged. This means that the number and types of atoms present in the reactants must be equal to the number and types of atoms present in the products.

Balancing chemical equations involves adjusting the coefficients (numbers in front of chemical formulas) so that the number of atoms of each element is the same on both sides of the equation. This ensures that the law of conservation of mass is obeyed. Balancing requires careful consideration of the stoichiometry (the quantitative relationship between reactants and products) and often involves trial and error.

Chemical equations also provide information about the stoichiometry of the reaction, including the ratio in which reactants combine and products are formed. This information is crucial for understanding the reaction's outcome and for predicting the amounts of products produced from given amounts of reactants.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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