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Alinara [238K]
3 years ago
13

Which of the follow statements is true?

Chemistry
1 answer:
goldfiish [28.3K]3 years ago
4 0

Answer:

The true statement is a. Reductants reduce oxidants and become oxidized.

Explanation:

The principle characteristic of reductant is to donate electron and that donated electron is accepted by an oxidant.

      As a result reductant become oxidized by reducing the oxidant which itself get reduced by accepting the electron from the reductant.

     

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What volume is equivalent to 12.0 m^3?
anzhelika [568]

1.2 x 10^10 mm^3 is equivalent to 12.0 m^3

8 0
3 years ago
What is the average atomic mass of all of the naturally occurring isotopes of nickel in amu?
My name is Ann [436]
In general chemistry, isotopes are substances that belong to one specific element. So, they all have the same atomic numbers. But they only differ in the mass numbers, or the number of protons and neutrons in the nucleus. In a nutshell, they only differ in the number of neutrons.

For Nickel, there are 5 naturally occurring isotopes. Their identities, masses and relative abundance are listed below

  Isotope                Abundance           Atomic Mass
   Ni-58                    68.0769%              <span>57.9353 amu
   Ni-60                    </span>26.2231%              <span>59.9308 amu
   Ni-61                    </span>1.1399 %               <span>60.9311 amu
   Ni-62                    </span>3.6345%                <span>61.9283 amu
   Ni-64                    </span>0.9256%                <span>63.9280 amu

To determine the average atomic mass of Nickel, the equation would be:
Average atomic mass = </span>∑Abundance×Atomic Mass

Using the equation, the answer would be:
Average atomic mass = 57.9353(68.0769%) + 59.9308(26.2231%) + 60.9311(1.1399%) + 61.9283(3.6345%) + 63.9280(0.9256%)

Average atomic mass = 58.6933 amu
3 0
4 years ago
Imagine that a new planet is discovered with two moons of equal mass: Moon A and Moon B. The mass of the new planet is greater t
kobusy [5.1K]

Answer: The gravitational pull on Moon B is greater than on Moon A because Moon B is closer to the new planet than Moon A.

Explanation:

The gravitational force exerted by the two objects on each other is inversely proportional to the square of the distance between the objects.

F=G\frac{mM}{r^2}

F = gravitational force or pull

G = gravitational constant on that planet

M =  mass of the object-1

m = mass of object-2(Mass of Moon-A or Moon-B)

r = distance between two objects

Force\propto \frac{1}{r^2}

With decease in distance 'r' the force between the object increases or vice versa.So, from this we can say that the gravitational pull on Moon-B is more than the gravitational pull on Moon-A because the Moon B is closer than the Moon-A from the new planet.

3 0
3 years ago
CH3OH + O2 CO2 + H2O is this a combustion reaction?​
Brrunno [24]

Answer:

yes

Explanation:

the results are CO2 and H2O, which usually appear after some kind of combustion.(combustion=burning)

hope this helps!

3 0
3 years ago
Calculate the volume in milliliters of a 1.27 mol/L silver perchlorate solution that contains 125.mmol of silver perchlorate (Ag
Lunna [17]

Answer:

This solution has a volume of 98.4 mL

Explanation:

Step 1: Data given

Molarity of AgClO4 solution = 1.27 mol/L

Number of moles AgClO4 = 125 mmol = 0.125 mol

Molar mass of AgClO4= 207.32 g/mol

Step 2: Calculate volume of the 1.27 M solution

Molarity = moles / volume

Volume = moles / molarity

Volume = 0.125 moles / 1.27 mol /L

Volume = 0.0984 L = 98.4 mL

This solution has a volume of 98.4 mL

7 0
4 years ago
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