Answer:
A beta particle
Explanation:
The radioactive particle must undergo a beta decay to have the mass number unchanged but the atomic number to have decreased by one.
This type of beta decay results in the emission of a positron which is a type of beta particle. It resembles an electron but it has a positive charge of 1.
Sodium metal reacts rapidly with water to form a solution of sodium hydroxide (NaOH) and hydrogen gas (H2). This reaction is exothermic.
Equation:
2Na + 2H²0 --------}- 2NaOH + H²
Red is the color that its related to
Answer:
Theoretical number of moles
Explanation:
The coefficient used in balancing a chemical reaction helps to show theoretically the number of moles of reactants used or products formed. It tends to give a representation of the ratio of the number of moles of reactants and products.
What we are saying in essence is that it helps to picture the number of moles of the reactants coming into the chemical reaction or the number of moles of products formed as the reaction proceeds to completion
Answer:
The law of conservation of mass states that mass in an isolated system is neither created nor destroyed by chemical reactions or physical transformations. According to the law of conservation of mass, the mass of the products in a chemical reaction must equal the mass of the reactants.