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3 years ago

How to test a hypothesis using scientific inquiry?

Chemistry

1 answer:

IrinaK [193]3 years ago

5 0

Answer:The most common way to test a hypothesis is to create an experiment.

Explanation:

The scientific method has 5 steps, plus one feedback step:

1 Make an observation.

2 Ask a question.

3 Form a hypothesis, or testable explanation.

4 Make a prediction based on the hypothesis.

5 Test the prediction.

6 Iterate: use the results to make new hypotheses or predictions.

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What’s the ionic equation for lithium + water

disa [49]

Answer:

2Li(s) + 2H₂O(ℓ) ⟶ 2Li⁺(aq) + 2OH⁻(aq) + H₂(g)

Explanation:

An ionic equation uses the symbols (aq) [aqueous] to indicate molecules and ions that are soluble in water, (s) [solid] to indicate insoluble solids, and (ℓ) to indicate substances (usually water) in the liquid state.

In this reaction, solid lithium reacts with liquid water to form soluble lithium hydroxide and gaseous hydrogen .

1. Molecular equation

2Li(s) + 2H₂O(ℓ) ⟶ 2LiOH(aq) + H₂(g)

2. Ionic equation

Lithium hydroxide is a soluble ionic compound, so we write it as hydrated ions.

2Li(s) + 2H₂O(ℓ) ⟶ 2Li⁺(aq) + 2OH⁻(aq) + H₂(g)

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3 years ago

If vinegar is added to baking soda, the reaction Cu (s) + 2Ag(NO3) (aq) à 2Ag (s) + Cu(NO3)2 (aq) occurs. What evidence would in

Papessa [141]

The solution bubbles

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3 years ago

What is an example of a physical property that always stays the same?

Nikitich [7]

I think the answer is Density

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An element is any substance that cannot be broken down into simpler substances. The smallest unit of an element is called an ___

Svetradugi [14.3K]

Answer:

An Atom

Explanation:

An atom is the smallest unit of matter

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3 years ago

Name diatonic elements

Volgvan

I assume you mean diatomic elements.
Those are hydrogen, oxygen, nitrogen, fluorine, chlorine, bromine, and iodine. They all exist in the form $X_{2}$ ( $H_{2}, O_{2} , N_{2} , F_{2} , Cl_{2} , Br_{2} , I_{2}$ ). Where they are all bonded to another one of themselves (a hydrogen atom binds to another hydrogen atom, a fluorine atom binds to another fluorine atom, etc.)

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