3 years ago

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Chemistry

2 answers:

VARVARA [1.3K]3 years ago

6 0

Answer:

Explanation:

nika2105 [10]3 years ago

4 0

Answer:

Explanation:k

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Circle only those of the following reactions that are redox reactions:

Citrus2011 [14]

Answer: options B,D and F

Explanation:

Since redox reactions are those which involves both oxidation and reduction

In B , Cu is oxidized and S gets reduced

D, Na gets oxidized and hydrogen gets reduced

F, carbon gets oxidized and Oxygen gets reduced

In g, there is no change in oxidation no of s in both product and Reactants is same +4

Similarly in the case of Ag and Mg.

5 0

3 years ago

The gas phase decomposition of sulfuryl chloride at 600 K SO2Cl2(g)SO2(g) + Cl2(g) is first order in SO2Cl2. During one experime

krok68 [10]

Answer: The rate constant for the reaction is $3.96\times 10^{-3}min^{-1}$

Explanation:

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant

t = age of sample = 559 min

a = let initial amount of the reactant = $2.83\times 10^{-3}$

a - x = amount left after decay process = $3.06\times 10^{-4}$

$559min=\frac{2.303}{k}\log\frac{2.83\times 10^{-3}}{3.06\times 10^{-4}}$

$k=\frac{2.303}{559}\log\frac{2.83\times 10^{-3}}{3.06\times 10^{-4}}$

$k=3.96\times 10^{-3}min^{-1}$

The rate constant for the reaction is $3.96\times 10^{-3}min^{-1}$

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3 years ago

Which 3 elements had complete out shells? (you will probably need to use the periodic table)

wlad13 [49]

The inert gases like neon,argon ,krypton have complete shells

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3 years ago

What is the mass of 4.57 x 1021 molecules of ammonia (NH3)?

Alex17521 [72]

Answer:

4665.97

Explanation:

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3 years ago

3. An object has a mass of 20.0 grams and a volume of 5.0 cubic centimeters. Give the<br> density

Savatey [412]

density= mass/ volume

d= 20/5

d= 4 g/cm^3

4 0

3 years ago

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