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Stells [14]
3 years ago
7

In a chemical reaction, under a given set of conditions, the value of the rate constant does not change as the reaction progress

es.
A. True
B. False
Chemistry
1 answer:
aleksandr82 [10.1K]3 years ago
8 0
A. True
The reaction rate depends on the rate constant for the given set of reaction conditions and the concentration
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How do you define medium and high level profession?according to class 8?
abruzzese [7]

Answer:

Answer: medium level profession can be defined as some one who has moved past entry level but isn't nearing the end . whereas high level profession means a person has moved past entry level and also has reached the end.

3 0
3 years ago
When calcium metal (Ca) reacts with oxygen gas (O2), it produces the ionic compound calcium oxide (CaO). Write the balanced equa
malfutka [58]

The balanced chemical equation for the reaction is

2Ca(s) + O₂(g) → 2CaO(s)

and

The process meets the requirements to be considered a redox reaction.

From the question,

We are to write a balanced chemical equation for the reaction between Calcium metal and oxygen gas

The balanced chemical equation for the reaction is

2Ca(s) + O₂(g) → 2CaO(s)

This is the balanced chemical equation for the reaction

To determine whether the reaction meets the requirements to be considered a redox reaction,

We will define the term <em>redox reaction</em>

<em></em>

A <em>redox reaction</em>, also called oxidation-reduction reaction, is any chemical reaction in which the oxidation number of a participating chemical species changes.

From the balanced equation above we can observe that the oxidation number of the participating species(Calcium and oxygen) changed.

The oxidation number of Calcium changed from 0 to +2

and

The oxidation number of Oxygen changed from 0 to -2

∴ The process meets the requirements to be considered a redox reaction.

Hence, the balanced chemical equation for the reaction is

2Ca(s) + O₂(g) → 2CaO(s)

and

The process meets the requirements to be considered a redox reaction.

Learn more here: brainly.com/question/17716543

7 0
2 years ago
Name the two properties of elections that indicate a wave-like nature.
tangare [24]
<span>The wave nature of an electron is indicated by its motion and the diffraction and interference of electrons in a beam.</span>
4 0
3 years ago
2. STEM The mass of an atom of helium is about 4.002 atomic units.
Anit [1.1K]

Answer:

The approximate mass of beryllium is 9.0045 u.

Explanation:

Given data:

mass of helium= 4.002 u

mass of beryllium which is 2.25 times of mass of helium= ?

Solution:

we will multiply the mass of helium with 2.25 times,

4.002 u × 2.25 = 9.0045 u

so the mass of beryllium atom would be 9.0045 u.

6 0
3 years ago
Which of the following situations demonstrates balanced force
yuradex [85]

Answer:

i think i had the same question as you, I put "A car driving on a straight freeway at 60 miles per hour" which was correct for me.

Explanation:

4 0
3 years ago
Read 2 more answers
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