Answer:
The correct answer is the charges of the positive and negative copper ions cancel each other out.
Explanation:
A copper metal having no net charge means that it is a neutral atom. A neutral atom means that total number of protons is equal to the total number of electrons.
Answer:
A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements.A scientific control is an experiment or observation designed to minimize the effects of variables other than the independent variable. This increases the reliability of the results, often through a comparison between control measurements and the other measurements.
Explanation:
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Answer:
graph 2
Explanation:
Graham's law:
∴v1: gas diffusion rate 1
∴ v2: gas diffusion rate 2
∴ M1: gas molecular weight 1
∴ M2: gas molecular weight 2
Let Y = R = v1/v2 and X = M2/M1
⇒ Y = √X
the graph for the function Y = √X; is as shown in graph 2.
The species which gives OH⁻ ion is known as Arrhenius base.
<h3>What are
Arrhenius bases?</h3>
Arrhenius bases are those species which are giving hydroxide ion (OH⁻) in an aqueous solution.
Properties of Arrhenius bases are:
- They are bitter in taste.
- Converts red litmus paper to blue color.
- Have pH value in the range of 7.1 to 14.
Examples of Arrhenius bases are sodium hydroxide (NaOH), potassium hydroxide (KOH), etc.
Hence, Arrhenius bases gives OH⁻ in an aqueous solution and NaOH is an example of this.
To know more about Arrhenius bases, visit the below link:
brainly.com/question/1049247
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