Answer:
D. Protons & Neutrons
Explanation:
Protons and Neutrons are found in the nucleus of the atom, and the electrons orbit the shells.
Answer:
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An example of a physical change is the process of tempering steel to form a knife blade.
physical properties include melting, transition to a gas, change of strength, change of durability, changes to crystal form, textural change, shape, size, color, volume and density.
Answer : Barium sulfate and Sodium nitrate are produced during replacement reaction.
Explanation :
Double-displacement reaction : It is a type of chemical reaction in which two reactants exchange ions to form two new compounds.
The Net balanced chemical reaction is ,
This is a double-displacement reaction.
In this reaction, barium nitrate react with the sodium sulfate to produce barium sulfate and sodium nitrate.