Answer:
I don't get it is it even a question?
<span>"Acetate" is a negatively charged ion called an anion.
the chemical formula is C2H3O2−.</span>
I would think it is a mixture but I'm not 100% sure.
The equation MgO + 2HCl → MgCl₂ + H₂O is a balanced equation.
- A balanced chemical equation contains equal number of atoms on both sides of the equation.
- The equation is MgO + 2HCl → MgCl₂ + H₂O which contains 1 atom of Mg, 2 atoms of chlorine, 2 atoms of chlorine, 1 atom of oxygen on both reactants and products sides.
- So the equation is balanced.
- An equation for a chemical reaction is said to be balanced if both the reactants and the products have the same number of atoms and total charge for each component of the reaction.
- In other words, both sides of the reaction have equal amounts of mass and charge.
- It follows law of conservation of mass.
- Mass is neither created nor destroyed rather it can be transferred from one form to another.
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The mass of the cube with length of 2cm is 
- We were given length of cube as
<em>To know the volume of cube we can use the expression</em>
<em />
Volume of cube = 
Where a= length of cube=
Then volume of the cube 
- Density was given as
But we know that density is the ratio of mass to the volume of a substance.
- Then
But we are looking for mass of the object, the we can make Mass as subject of the formula
Them substitute the values
<em>Therefore mass of the cube is</em>
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