Why do we ignore noble gases usually when we discuss electronegativity values?

Answer:

D.  Pressure and temperature.

Explanation:

The answer is D because when water molecules (H2o) have heat and pressure added it will boil.  For exampe if your cooking pasta, you add water to your pan and when you add heat and put the lid of the pan it will boil.

Answer:

Sr(s) + F₂(g) → SrF₂(s)

Explanation:

• A balanced equation is an equation that has an equal number of atoms of elements on either side of the equation.
• Chemical equations are balanced to obey the law of conservation of mass which states that the mass of reactants and that of the product should always be equal in chemical reactions.
• Therefore, the balanced chemical equation for the reaction between Sr and F₂ is given by;

Sr(s) + F₂(g) → SrF₂(s)

• Each side of the equation has 1 atom of Sr and two atoms of F thus the equation is balanced.

Final answer:

Solid Strontium reacts with Fluorine gas in a synthesis reaction to form Strontium Fluoride. The balanced chemical equation is Sr (s) + F2 (g) -> SrF2 (s).

Explanation:

The reaction of solid strontium (Sr) with fluorine gas (F2) is a synthesis reaction, and it forms strontium fluoride (SrF2). The balanced chemical equation for this reaction is:

Sr (s) + F2 (g) → SrF2 (s)

In this equation, 's' stands for solid, 'g' stands for gas, and the arrow ( → ) indicates the direction of the reaction from reactants to products.

Learn more about Balanced Chemical Equation here:

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