ewalchloe5067920

09.09.2021 • 

Chemistry

1.Which element would most likely lose electrons to form positive ions when bonding with other elements? A. argon (Ar)

B. gallium (Ga)

C. iodine (I)

D. rubidium (Rb)

2.Which statement about sodium chloride is correct?

A. The sodium atom transfers electrons to the chlorine atoms to form covalent bonds.

B. The sodium atom and the chlorine atoms share electrons to form covalent bonds.

C. The sodium atom and the chlorine atoms share electrons to form ionic bonds.

D. The sodium atom transfers electrons to the chlorine atoms to form ionic bonds.

3.Based on their locations in the periodic table, which two elements are most likely to form covalent bonds with each other?

A. magnesium (Mg) and sulfur (S)

B. potassium (K) and iodine (I)

C. nitrogen (N) and oxygen (O)

D. sodium (Na) and bromine (Br)

4.Which phrase best describes electronegativity?(1 point)

A. the relative strength with which an element attracts electrons in a chemical bond

B. the number of electrons an element has

C. the partial charge an element carries in a covalent or ionic bond

D. the number of electrons an element shares in an ionic bond

Ответ:

andreimru123123

18.06.2020

Chemistry

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To convert the given value we need conversion factors to relate molecules to liters. At STP, we know that 1 mol is equal to 22.4 L  and by using Avogadro's number we can relate molecules to 1 mol. Calculation is as follows:

5.0x10^24 molecules ( 1 mol / 6.022 x 10^23 molecules ) ( 22.4 L / 1 mol) = 186.0 L 

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