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2 years ago

Arrange the following elements based on their size (atomic radii) from largest to smallest: Ca, Ge, Br, K, Kr

Chemistry

1 answer:

Lady bird [3.3K]2 years ago

7 0

Answer: K, Ca, Ge, Br, Kr

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2C4H10+13o2= 8CO2+10H2O

Gennadij [26K]

Answer:

your answer will be between 16-17 moles

Explanation:

The combustion of butane is 2 C4H10 + 13 O2 = 8 CO2 + 10 H2O. Every two moles of C4H10 can produce 10 moles of water,

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3 years ago

The_____ Force between two objects which depends _____ and Their______ apart

zlopas [31]

The Gravitational Force between two objects which depends on masses and their separation apart

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3 years ago

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Pls help me will mark Brianliest!!! I know the answer choice is a bit cut off. Topic is chem equilibrium

Svetlanka [38]

Answer:

See notes on LeChatlier's Principle I gave you yesterday.

Explanation:

Remember chemical see-saw => Removing Fe⁺³ makes the reactant side of the see-saw lighter causing the balance to tilt right then shift left to establish a new equilibrium with new concentration values. Such would result in a decrease in FeSCN⁺² concentration and increases in Fe⁺³ and SCN⁻ concentrations to replace the original amount of ppt'd Fe⁺³. => Answer Choice 'B' ... Also, see attached => Concentration effects on stability of chemical equilibrium .

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2 years ago

A 3.0 L cointainer contains 4 mol He, 2 mol Ne,and 1 mol Ar. What is the mole fraction of neon gas? What is the partial pressure

CaHeK987 [17]

Answer:

Partial pressure of Ne = 1.43 atm

Explanation:

Step 1: Data given

Volume = 3.0 L

Number of moles He = 4 moles

Number of moles Ne = 2 moles

Number of moles Ar = 1 mol

Total pressure = 5 atm

Step 2: Calculate total moles

Total moles = 4 moles + 2 moles + 1 mol

Total moles = 7 moles

Step 3: Calculate the mol ratio

Mol ratio = moles / total mol

Mol ratio He = 4 moles / 7 moles = 0.571

Mol ratio Ne = 2 moles / 7 moles = 0.286

Mol ratio Ar = 1 mol / 7 moles = 0.143 moles

Ste p4: Calculate partial pressure

PArtial pressure = mol ratio * total pressure

Partial pressure of Ne = mol ratio Ne * total pressure

Partial pressure of Ne = 0.286 * 5 atm

Partial pressure of Ne = 1.43 atm

8 0

3 years ago

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Write an equation for the reaction of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride.

Angelina_Jolie [31]

Answer:

sodium sulfite) Na2SO3 + HCl (hydrochloric acid). This reaction is a gas evolution reaction. The products are sodium chloride (NaCl), sulfur dioxide (SO2) and water (H2O). Sulfurous Acid (H2SO3) is produced as an intermediate in this reaction.

Explanation:

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3 years ago