2 years ago

Which is a chemical property of copper? A. ability to oxidize B. color C. odor D. freezing point

Chemistry

1 answer:

Nat2105 [25]2 years ago

7 0

I think it is A. ability to oxidize :)

You might be interested in

A helium balloon at 23 C has a volume of 755 mL. The balloon is placed into a freezer kept at -10 C. Assuming pressure is consta

Vera_Pavlovna [14]

Explanation:

T1/V1 = T2/V2

V2 = T2 x V1/T1

V2 = 296.15x535/319.15

V2 = 496.44mL

5 0

2 years ago

A white rooster mates with a black hen. The offspring is gray in color. What is this phenomenon called?

irina [24]

Answer:

A. co dominace

incomplete dominance is when both genes show, this would result in the chicken being a black and white color

Explanation:

4 0

2 years ago

Under what conditions of temperature and pressure is a gas most soluble in water?

Valentin [98]

Answer:

A gas is most soluble in water under conditions of high pressure, and low temperature.

8 0

3 years ago

What is the molar mass of KCI

9966 [12]

Answer:

178.01347 ± 0.00093 g/mol

Explanation:

7 0

2 years ago

The reaction between nitrogen dioxide and carbon monoxide is NO2(g)+CO(g)→NO(g)+CO2(g)NO2(g)+CO(g)→NO(g)+CO2(g) The rate constan

Alex17521 [72]

Answer : The rate constant at 525 K is, $0.0606M^{-1}s^{-1}$

Explanation :

According to the Arrhenius equation,

$K=A\times e^{\frac{-Ea}{RT}}$

or,

$\log (\frac{K_2}{K_1})=\frac{Ea}{2.303\times R}[\frac{1}{T_1}-\frac{1}{T_2}]$

where,

$K_1$ = rate constant at $701K$ = $2.57M^{-1}s^{-1}$

$K_2$ = rate constant at $525K$ = ?

$Ea$ = activation energy for the reaction = $1.5\times 10^2kJ/mol=1.5\times 10^5J/mol$

R = gas constant = 8.314 J/mole.K

$T_1$ = initial temperature = 701 K

$T_2$ = final temperature = 525 K

Now put all the given values in this formula, we get:

$\log (\frac{K_2}{2.57M^{-1}s^{-1}})=\frac{1.5\times 10^5J/mol}{2.303\times 8.314J/mole.K}[\frac{1}{701K}-\frac{1}{525K}]$

$K_2=0.0606M^{-1}s^{-1}$

Therefore, the rate constant at 525 K is, $0.0606M^{-1}s^{-1}$

8 0

2 years ago