Asked in ChemistryElements and Compounds
Elements and Compounds
Describe why there are the same numbers of particles in the beginning and at the end of the reaction?
Asked in Chemistry, Elements and Compounds
Why there are the same number of particles in the beginning and at the end of a reaction?
There are the same numbers of the same kinds of atoms in the beginning and the end of a chemical reaction because that is part of the definition of a chemical reaction. The word "particle" used in the question is a physical term rather than a chemical one, and there are not always the same number of particles in the beginning and at the end of a reaction. For example, solid iron filings, which constitute many "particles", can be dissolved in a water solution of hydrochloric acid and leave no "particles" behind at all: The product hydrogen is a gas and the product iron chloride remains dissolved in the water solution.
Asked in Mechanics
What quantities are conserved when balancing a nuclear reaction?
Asked in Chemistry
What is the relationship between the mass numbers of the reactants and the mass numbers of the products in a nuclear reaction?
Asked in Biology, Particle Physics
Which subatomic particles are involved in a nuclear reaction?
What is the difference between an ordinary chemical equation and a nuclear equation?
An ordinary chemical equation is for a chemical reaction, changing molecules into other molecules. The balanced numbers are numbers of atoms of particular elements. A nuclear decay equation is for a nuclear reaction, changing an atom of an element into an atom of another element plus subatomic particles. The balanced numbers are numbers of subatomic particles of particular types.
Asked in Math and Arithmetic
How do you describe an algorithm with rational numbers?
In a redox reaction the numbers of some of the elements changes from the reactants to the products?
Asked in Algebra, Math and Arithmetic
Describe the pattern the square numbers make on the multiplication table?
How would you describe the way numbers are organized?
Asked in Physics, Atoms and Atomic Structure
What does an electrically neutral atom have equal numbers of?
Asked in Genetics
What is the difference between diploid and haploid numbers?
Asked in Statistics, Calling and Area Codes
How many three-digit area codes are possible if the first digit cannot be a 0?
Asked in Mobile Phones, Calling and Area Codes, London
Where in the UK is a phone number beginning 05?
In the United Kingdom, numbers beginning 05 are non-geographic numbers used for special purposes. Numbers beginning 0500 are old freephone numbers. They are being gradually replaced by 0800 and 0808 numbers, but some still exist. Numbers beginning 055 are corporate numbers for large businesses. They allow big companies to have a large, dedicated block of numbers that aren't linked to a specific part of the country. For example, Santander's UK bank branches use a block of numbers beginning 05511. Numbers beginning 056 are for VOIP phones and other similar non-geographic phone services. However, many people prefer to take the option of using a regular, geographic area code instead so these 056 numbers are still quite rare.
What is true about the atoms at the start of a chemical reaction compared to the atoms at the end of the reaction?
Asked in Math and Arithmetic, Numbers
Which set of numbers is the most reasonable to describe the number of desks in a classroom-?