Answer:
Brainliest pls
Explanation:
The components potassium and sodium have comparable substance properties since they have a similar number of valence electrons
The answer is C, the sides of the bucket will be pushed out and above a rim, just like when you put a water bottle in a freezer for 24 hours, the sides will be pushed out.
The ions are as follows;
- As2O3 - As^3+, O^2-
- MnS - Mn^2+, S^2-
- VCl3 - V^3+, Cl^-
- NiF2 - Ni^2+, F^-
<h3>What is a cation and an anion?</h3>
A cation is a positive ion while an anion is a negative ion. Ionic compounds are composed o cations and anions.
The anions and cations in the ionic compounds in the table are shown below;
- As2O3 - As^3+, O^2-
- MnS - Mn^2+, S^2-
- VCl3 - V^3+, Cl^-
- NiF2 - Ni^2+, F^-
Learn more about cations and anions:brainly.com/question/4933048
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<span> the average mass of all the different isotopes of the atom</span>
Answer:

Explanation:
The <em>dimensional analysis</em> helps you by focusing your attention into the units: you must set up the equation starting with the available units and add the factors with the units such that the cancelation of numerators and denominators ends up with the desired units: grams of aluminium in this case.
In this case, you start with a mass of 2.56 grams per penny, which is
, whose value is $200.00 and want to end with the grams of
Aluminium needed.
Then, you must use the mole ratios derived from the chemical equation in a way that the units lead from grams of copper to grams of aluminium.
The equation is:

From which, the mole ratio between copper and aluminium is:

You must also use the atomic masses of Cu and Al which are 63.5g/mol and 27g/mol respectively.
The equation is:

You can check that afeter multiplying all the factors, the most units will cancel and the final units will be grams of Al.