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3 years ago

In the following equation, which compounds are the reactants?NaCl + AgNO → NaNO + AgCl

Chemistry

2 answers:

tangare [24]3 years ago

7 0

NaCl + AgNO are the reactants since the reactants are always on the left side of the yield.

Liula [17]3 years ago

7 0

Answer:

The correct answer is NaCl and AgNO.

Explanation:

A reactant is a substance or compound that is added to a system to cause a chemical reaction.

Therefore, a reactant is any substance that interacts with another in a chemical reaction that results in other substances of different properties, characteristics, and conformation called chemical reaction products.

Have a nice day!

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Under constant temperature, the volume occupied by a gas varies inversely to the pressure applied. If the gas occupies a volume

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Answer:

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Explanation:

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4 years ago

What happens when a catalyst is used in a chemical reaction? The reaction rate increases. The reaction rate decreases. The react

topjm [15]

Catalysts speed up a reaction so it would be the reaction rate increases.

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3 years ago

Read 2 more answers

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Oksi-84 [34.3K]

Answer:

2K + Br2 --> 2KBr is the answer

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3 years ago

The burning of magnesium is a highly exothermic reaction. How many kilojoules of heat are released when 0. 75 mol of Mg burn in

alexandr402 [8]

Taking into account the definition of enthalpy of a chemical reaction, the quantity of heat released when 0.75 moles of Mg are burned is 451.5 kJ.

<h3>Enthalpy of a chemical reaction</h3>

The enthalpy of a chemical reaction is known as the heat absorbed or released in a chemical reaction when it occurs at constant pressure. That is, the heat of reaction is the energy that is released or absorbed when chemicals are transformed into a chemical reaction.

The enthalpy is an extensive property, that is, it depends on the amount of matter present.

<h3>Heat released in this case</h3>

In this case, the balanced reaction is:

2 Mg(s) + O₂ (g) → 2 MgO(s) + 1204 kJ

This equation indicates that when 2 moles of Mg reacts with 1 mole of O₂, 1204 kJ of heat is released.

When 0.75 moles of Mg are burned, then you can apply the following rule of three: if 2 moles of Mg releases 1204 kJ of heat, 0.75 moles of Mg releases how much heat?

$heat=\frac{0.75 moles of Mgx1204 kJ}{2 moles of Mg}$

Finally, the quantity of heat released when 0.75 moles of Mg are burned is 451.5 kJ.

Learn more about enthalpy of a chemical reaction:

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4 0

2 years ago

1. Mg2+ and Ca2+ are in the same group on the periodic table. In terms of electronic

finlep [7]

Answer:

Se detailed explanation.

Explanation:

Hello,

In this case, since both magnesium and calcium ions are in group IIA, we can review the following similar properties:

- Since both calcium and magnesium are in group IIA they have two valence electrons, it means that the both of them have two electrons at their outer shells.

- They are highly soluble in water when forming ionic bonds with nonmetals such as those belonging to halogens and oxygen's family.

- Calcium has 18 electrons and magnesium 10 which are two less than the total protons (20 and 12 respectively) since the both of them have lost two electrons due their ionized form.

- Their electron configurations are:

$Ca^{20}=1s^2,2s^2,2p^6,3s^3,3p^6,4s^2\\\\Mg^{12}=1s^2,2s^2,2p^6,3s^2$

It means that the both of them are at the $s$ region since it is the last subshell at which their electrons are.

Best regards.

8 0

3 years ago