Given the reaction below, which is the reduced substance?Mg + Cl2 mc006-1.jpg Mg2+ + 2Clmc006-2.jpg

Answers

Answer 1

Answer: In the reaction:
Mg + Cl2 --> Mg2+ + 2Cl-

The reduced substance is the substance that the gained electron/s.
Looking at the substances:
Mg has a neutral charge, after the reaction, it gained a charge of 2+. This means, it lost 2 electrons.
Cl2 has a neutral charge, after the reaction, it gained a charge of -1. This means it gained 2 electrons.

Therefore, the reduced substance is Cl2.

Answer 2

Answer:

the reduced substance is Cl2.

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True or false: the Precision of a calculated answer is limited by the least precise measurement used in the calculation

Answers

The Precision of a calculated answer is limited by the least precise measurement used in the calculation is false.

what is Precision?

If the average value of different measurements is similar to the correct value of the measurement is said to be accurate and if the value of different measurements is close to each other then it is said to be precise.

The everage value of the different measurements may or not may be the same as exact and the resultant values must be the same as the calculated value for the precision of the result.

Therefore, the Precision of a calculated answer is limited by the least precise measurement used in the calculation is false.

Learn more about Precision, here:

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the precision of calculated answer is limited by the least precise measurement used in calculation

The net energy released or absorbed during a reversible chemical reaction is equal to(1) the activation energy of the endothermic reaction
(2) the activation energy of the exothermic reaction
(3) the difference between the potential energy of the products and the potential energy of the reactants
(4) the sum of the potential energy of the products and the potential energy of the reactants

Answers

Answer: The correct answer is Option 3.

Explanation:

The net energy absorbed or released in a reaction is known as total enthalpy change of the reaction. It is designated as $\Delta H_(rxn)$

It is defined as the difference between the total potential energy of the products and the total potential energy of the reactants. The equation for this is given by:

$\Delta H_(rxn)=\sum \Delta H_(products)-\sum \Delta H_(reactants)$

where,

$\Delta H_(products)$ = Total potential energy of the products

$\Delta H_(reactants)$ = Total potential energy of the reactants

Hence, the correct answer is Option 3.

3. The difference between the potential energy of the products and the potential energy of reactants.

What is migrate? Help me pls

Answers

means moving from one place to the other

Hey there

Migrate means moving from habitat to another. Example - I migrated to Canada in 1994. Another example is - when autumn arrives, birds migrate south.

Which is the best metal to use in an alloy to increase its electrical conductivity?A) Al
B) Cu
C) Fe
D) Sb

Answers

Answer;

-Copper (Cu)

Explanation;

-While all metals can conduct electricity, certain metals are more commonly used due to being highly conductive. The most common example is Copper. It is highly conductive which is why it is has been used in electrical wiring.

-Copper is used for electrical wiring because it is a good conductor of electricity. Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity.

B) CuCopper is the best metal to use in an alloy because it has the highest electrical conductivity rating of all non-precious metals due to the arrangement of its electrons. They are easily excited and can easily carry an electoral charge.

Q(0,5) and R(2,1) are the endpoints of a line segment. What is the midpoint M of that line segment.

Answers

To find the midpoint M of a line segment with endpoints Q(0,5) and R(2,1), you can use the midpoint formula:

Midpoint M = ((x₁ + x₂) / 2, (y₁ + y₂) / 2)

In this formula:

- (x₁, y₁) are the coordinates of the first endpoint (Q in this case).

- (x₂, y₂) are the coordinates of the second endpoint (R in this case).

Plug in the values:

M = ((0 + 2) / 2, (5 + 1) / 2)

M = (2 / 2, 6 / 2)

M = (1, 3)

So, the midpoint M of the line segment with endpoints Q(0,5) and R(2,1) is (1, 3).

French science
Does anyone understand any of this and how this all works ?