Chemistry, 14.01.2020 08:31 Arellano4672

What is the diffrence between a mixture and a compound

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A compound is a substance made up of atoms of two or more different elements joined by chemical bonds. A mixture is a combination of two or more substances that are not chemically combined.

Answer from: madelyncross24

a mixture has multiple atoms or chemicals in it a compound is one solid atom packed tokether to creatat a compound

Explanation:

Answer from: Quest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

Answer from: Quest

For a cell to pass the g2 checkpoint, there must be accurate and complete dna replication. there must also be a maturation promoting factor which to maintain the metaphase ii stage arrest . the g2 also known as 2nd gap phase, is usually responsible for continued growth and preparation for cell division.

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