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4 years ago

(PLEASE ANSWER ASAP) What is defined as the energy required to start a chemical reaction?

Chemistry

2 answers:

Alchen [17]4 years ago

7 0

Answer:

Explanation:

hmu if you need help with anything else

valentina_108 [34]4 years ago

5 0

Answer:

Option D. Activation energy

Explanation:

Activation energy is the minimum energy required to start a chemical reaction. For a reaction to occur, the reactants must possess energy equal or greater than the activation energy else the reaction will not occur.

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Which of the following correctly describes a compound

Reptile [31]

combination of elements on the periodic table to create a substance. so I think I understand about this okay but I have a 98% on that type of subject

8 0

3 years ago

When combined the two substances together in the cup, the product can be described as a ____ or ____ (there are two possible ans

Elina [12.6K]

I am pretty sure it is white white liquid but if I’m not right I am so sorry

8 0

3 years ago

Two atoms that have the same atomic numbers but different atomic mass numbers are called

Ivenika [448]

The are called isotops

3 0

4 years ago

One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal

aleksley [76]

Answer:

Lithium oxide, Li₂O.

Explanation:

Hello!

In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:

$M_2O+H_2\rightarrow 2M+H_2O$

Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:

Thus, we perform the operations in order to obtain:

$\frac{10X}{(2X+16)}=2.32$

So we solve for x as shown below:

$10X=2.32(2X+16)\\\\10X=4.64X+37.12\\\\X=\frac{37.12}{10-4.64}\\\\X= 6.93g/mol$

Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.

Best regards!

5 0

3 years ago

Write the equation showing the formation of a monosubstituted product when butane reacts with chlorine. Use molecular formulas f

Harman [31]

Answer:

CH3CH2CH2CH3 + Cl2 --------> CH3CH2CH2CH2Cl + HCl

Explanation:

Alkanes react with halogens in the presence of light to yield alkyl halides. The degree of substitution increases as the reaction progresses. The reaction occurs by free radical mechanism.

The reaction between butane and chlorine molecule to yields a monosubstitution product occurs as follows;

CH3CH2CH2CH3 + Cl2 --------> CH3CH2CH2CH2Cl + HCl

4 0

3 years ago