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What are three things that show evidence of a chemical reaction?
Wiki User
∙ 9y ago
There are five things:
- Color change
- odor
- state change (from liquid to solid, liquid to gas, etc...),
- gives off at precipitate
- a temperature change
Wiki User
∙ 9y ago
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What are the three main parts of a chemical equation?
The three main parts of a chemical equation are the reactants, the arrow representing the reaction, and the products. Reactants are the substances that participate in the reaction, while products are the substances formed as a result of the reaction. The arrow indicates the direction of the reaction from reactants to products.
What are 3 things that show evidence of a chemical reaction?
Formation of a precipitate or gas: A visible solid (precipitate) forming when two solutions are mixed or the evolution of a gas (bubbles) indicates a chemical reaction. Color change: A change in color during a reaction suggests that new substances with different properties have formed. Temperature change: Exothermic reactions release heat, leading to a temperature increase, while endothermic reactions absorb heat, causing a temperature decrease.
What three things make up gunpowder?
Gunpowder is made up of three main components: potassium nitrate (also known as saltpeter), charcoal, and sulfur. These ingredients undergo a chemical reaction when ignited, producing the explosive combustion that propels a bullet out of a gun.
What 3 things need to happen in order for a chemical reaction to occur?
For a chemical reaction to occur, typically three things need to happen: reactant molecules must collide with enough energy to overcome activation energy, proper orientation of colliding molecules must occur, and the reaction must proceed in a way that forms new chemical bonds and products.
What is the chemical reaction between ammonia and hydrogen?
The chemical reaction between ammonia (NH3) and hydrogen (H2) is as follows: 3H2 + N2 --> 2NH3 This reaction results in the formation of ammonia (NH3) by combining three molecules of hydrogen gas (H2) with one molecule of nitrogen gas (N2).
Is vinegar and baking soda a combustion reaction?
Yes because it has two out of three things which are heat and two things that make a gas which is also called a chemical reaction
What Three Things can happen when a Chemical Reaction occur?
A chemical reaction can change a substance into a solid, liquid, or gas. It may cause a substance to explode or could cause no change at all.
What is the chemical reaction for the formation of rubber?
The type of chemical reaction that takes place through the formation of the rubber is called the mechano-chemical reaction. Through this, it gives the end product a three dimensional structure.
What are three facts about a chemical reaction are provided by a chemical equation?
A chemical equation provides information about the reactants involved in the reaction, the products formed, and the stoichiometry of the reaction (i.e., the relative amounts of reactants and products). It also shows the balance of atoms on both sides of the equation, ensuring the law of conservation of mass is followed.
What are the three main parts of a chemical equation?
The three main parts of a chemical equation are the reactants, the arrow representing the reaction, and the products. Reactants are the substances that participate in the reaction, while products are the substances formed as a result of the reaction. The arrow indicates the direction of the reaction from reactants to products.
What are the 3 requirements are needed to make fire?
To make fire, you need three things: fuel to burn, heat to ignite the fuel, and oxygen to sustain the combustion reaction. These three components combine to create a self-sustaining chemical reaction known as fire.
What are three things that chemical equations can tell you about a chemical reaction?
Chemical equations can tell you the identities of the reactants and products involved in a reaction, the stoichiometry of the reaction (i.e., how the reactants and products are related in terms of moles), and the amount of heat released or absorbed during the reaction.
What is polymerisation reaction?
Polymerisation is a process of reacting monomer molecules together in a chemical reaction to form three-dimensional networks or polymer chains.
What are 3 things that show evidence of a chemical reaction?
Formation of a precipitate or gas: A visible solid (precipitate) forming when two solutions are mixed or the evolution of a gas (bubbles) indicates a chemical reaction. Color change: A change in color during a reaction suggests that new substances with different properties have formed. Temperature change: Exothermic reactions release heat, leading to a temperature increase, while endothermic reactions absorb heat, causing a temperature decrease.
What are Three things all living things need?
oxygen,water and chemical energy (food)
What are three factors of the speed at which a chemical reaction happens?
temperature presence or absence of a catalyst concentration of reactants
What three things provide evidence that organisms change over time?
Fossils Further evidence is derived from living organisms Bones
