Explanation:
We can summarize the reaction shown as:
2F₂ + I₂ → 2F₃I
Since I is purple
F is the green
The number of I atoms in the reactants is greater than the number in the product
False:
The number of I atoms on both side of the expression is 2
There are 4 atoms of F in both the reactants and the products.
False:
There are 4 atoms of F on the reactant side and 6 atoms of F on the product side
The illustration represents a valid chemical transformation. True or false
False
The reaction does not represent a valid chemical transformation because in a valid chemical transformation, the number of atoms on both sides of the expression must be the same.
(C) neon (atomic number 10)
Explanation:
The atom that is chemically inert is Neon with an atomic number of 10.
An atom is chemically inert if it does not willingly take part in chemical reaction.
Atoms takes part in chemical reactions in order to attain a stable configuration as seen in the noble gases.
In the noble gases every enable level is completely filled with the appropriate number of electrons.
- The noble gases are He, Ne, Ar, Kr, Xe
- These elements do not react with others.
- From the given option, Neon is a noble gas and therefore inert.
learn more:
Noble gas brainly.com/question/1781595
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A solution (in this experiment solution of NaNO₃) freezes at a lower temperature than does the pure solvent (deionized water). The higher the
solute concentration (sodium nitrate), freezing point depression of the solution will be greater.
Equation describing the change in freezing point:
ΔT = Kf · b · i.
ΔT - temperature change from pure solvent to solution.
Kf - the molal freezing point depression constant.
b - molality (moles of solute per kilogram of solvent).
i - Van’t Hoff Factor.
First measure freezing point of pure solvent (deionized water). Than make solutions of NaNO₃ with different molality and measure separately their freezing points. Use equation to calculate Kf.
Answer:
DNA
Explanation: Because if you stretch DNA it gets longer.
