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3 years ago

Which of the following chemical reactions is not an oxidation-reduction reaction?

2 answers:

6 0

The chemical reaction
$CuSO_{4} + BaCl_{2} yields BaSO_{4} + Cu Cl_{2}$
is not an oxidation-reduction reaction because there is no trasfer of electrons. The following are the oxidation numbers of the species involved:
Reactants side:
Cu = +2
Sulfate ion = -2
Cl2 = -2
Ba = +2

Products side:
Cu = +2
Sulpahte Ion = -2
Cl2 = -2
Ba = +2

adelina 88 [10]3 years ago

5 0

The answer to this is A

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For a different reaction, the plot of the reciprocal of concentration versus time in seconds was linear with a slope of 0.056 M-

Bond [772]

Answer:

$C_t=0.165M$

Explanation:

From the question we are told that:

Slope $K=0.056 M-1 s -1$

initial Concentration $C_1=2.2M$

Time $t=100$

Generally the equation for Raw law is mathematically given by

$\frac{1}{C}_t=kt+\frac{1}{C}_0$

$\frac{1}{C}_t=0.056*100+\frac{1}{2.2}_0$

$C_t=0.165M$

4 0

3 years ago

A certain isotope has 53 protons 78 neutrons and 53 electrons. What is its atomic number? What is the mass number of this atom?

statuscvo [17]

Answer:

53 protons
131g
Iodine
Halogens

Explanation:

atomic no. = no. of protons

= 53 proton

mass = no. of protons + no. of

neutrons

= 53 + 78

= 131

5 0

3 years ago

Which of the following objects would transfer heat by convection?

Shkiper50 [21]

<em>i think the answer is b </em>

7 0

3 years ago

Read 2 more answers

An object has a mass of 45.0 g and a volume of 4.0 ml. what is its density?

andreev551 [17]

Answer:

The answer is

Explanation:

The density of a substance can be found by using the formula

$Density = \frac{mass}{volume}$

From the question

mass = 45 g

volume = 4 mL

Substitute the values into the above formula and solve for the density

We have

$Density = \frac{45}{4}$

We have the final answer as

Hope this helps you

4 0

3 years ago

I can't decide what to ship bacudeku or tododeku

iVinArrow [24]

Answer:

I would go with tododeku to leave room for kiribaku but that's my opinion

Just because I ship that doesn't mean i don't secretly ship bakudeku

Explanation:

Bakudeku is a hawt ship and I love it so friggen much, but kiribaku is kinda cute and it got me all mixed up. I'm in a mess as well trying to figure out a solid ship for each character. I'm procrastinating by drawing a bunch of random fanart.

7 0

3 years ago