Answer: There are fossils found on either side of different continents and the continents look as though some are puzzle pieces that fit together.
The answer is physical property.
Physical properties are the properties that does not require the substance changing into another substance, which is, chemical change. Physical properties are usually observable and measurable, such as melting points, density, odor, color etc. These does not require a chemical reaction to happen.
The opposite of physical property is chemical property, which is how the substance changes to another. Such as how sodium reacts with water to make sodium hydroxide and hydrogen.
Ionic compound, this is because the ions in a compound consist of a metal and a nonmetal... Or cation and anion. This means that they have opposite charges, so when they are in liquid form they allow for movement of electrify because they are free flowing. In contrast, as a solid they are tightly attracted and compacted so a charge cannot be carried through. Hope that helps!
Protein would be the main one.
Answer:
0.49 mol
Explanation:
Step 1: Write the balanced equation
Mg + 2 HCI ⇒ MgCl₂ + H₂
Step 2: Calculate the moles corresponding to 12 g of Mg
The molar mass of Mg is 24.31 g/mol.

Step 3: Calculate the moles of H₂ produced by 0.49 moles of Mg
The molar ratio of Mg to H₂ is 1:1. The moles of H₂ produced are 1/1 × 0.49 mol = 0.49 mol.