3 years ago

Which of the following is a pure substance? Choose all that apply.

Chemistry

2 answers:

worty [1.4K]3 years ago

7 0

Nickel is a pure substance

Rust is also a pure substance

Brums [2.3K]3 years ago

6 0

Nickel is a pure substance:
Final answer: B

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Witch element has the fewest valence electrons available for bonding

Phoenix [80]

The element that has the fewest valence electrons available for bonding I believe is Hydrogen.

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3 years ago

Which of the following elements would you expect to be most reactive, based

ki77a [65]

Answer:

C. Lithium

Explanation:

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2 years ago

What volume is occupied by 0.109 molmol of helium gas at a pressure of 0.98 atmatm and a temperature of 307 K

KATRIN_1 [288]

Answer:

2.8 L

Explanation:

From the question given above, the following data were obtained:

Number of mole (n) = 0.109 mole

Pressure (P) = 0.98 atm

Temperature (T) = 307 K

Gas constant (R) = 0.0821 atm.L/Kmol

Volume (V) =?

The volume of the helium gas can be obtained by using the ideal gas equation as follow:

PV = nRT

0.98 × V = 0.109 × 0.0821 × 307

0.98 × V = 2.7473123

Divide both side by 0.98

V = 2.7473123 / 0.98

V = 2.8 L

Thus, the volume of the helium gas is 2.8 L.

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2 years ago

What is the pH of a 6.4*10-10 m oh- solution?

egoroff_w [7]

PH: 4.80617997
pOH: 9.1938200
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3 years ago

The geometry of a ______________ makes it a very stable shape.

boyakko [2]

Answer:

triangles

Explanation:

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2 years ago