Chemistry, 30.07.2019 13:00 alexisgonzales4752
Plz ! of the four examples listed below, which describe a chemical change? i. boiling water and producing water vapor ii. freezing liquid water into ice cubes iii. mixing salt into a beaker of water until the salt dissolves iv. mixing hydrogen gas and oxygen gas together to make liquid water when a chemical change occurs something new is formed. the reactants have different properties than the products. the product cannot easily be separated into its original parts.
Answers: 1
Chemistry, 22.06.2019 06:00
An atom of sodium-23 (atomic number = 11) has a positive charge of +1. give this information, how many electrons does it have? how many proteins and neutrons does this atom have
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Chemistry, 22.06.2019 09:00
The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles
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Chemistry, 22.06.2019 15:20
Water is initially present in a state where its molecules are far apart. during a change of state, its molecules slow down. which change of state has most likely taken place? from a gas to a liquid from a liquid to a gas from a solid to a liquid from a gas to a plasma
Answers: 1
Plz ! of the four examples listed below, which describe a chemical change? i. boiling water and p...
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