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Klio2033 [76]
3 years ago
11

The scientific method is critical to scientific study. In an essay, discuss the possible use of the scientific method in everyda

y life and how it might be important. Please include the steps of the scientific method. You can incorporate a previous lab, i.e. Rolling balls lab into your steps
Chemistry
1 answer:
Eduardwww [97]3 years ago
6 0

Scientific method consists of systematic observation, hypothesis, and experimentation of observation and hypothesis.

Explanation:

  • Scientific method and steps can be explained by an example. Suppose you live in a sea side and in your house compound, you have a pond. You observe that during winter, pond freezes while the sea doesn't.
  • You think about it and reach the hypothesis that it may be because sea water that is salty has a higher freezing point than pond water, which is fresh water.
  • You experiment and prove your hypothesis by taking two cups of distilled water and pouring salt to one of it. You keep them in refrigerator and  increase the freezing point. You see the distilled water cup getting frozen and the other cup is not because the salty water in it has a higher freezing point.
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4 years ago
Which number should be placed before H20 on the products side of the equation to
timama [110]
<h2>The required balanced equation:</h2><h2>C_3H_8 +5O_2 = 3CO_2 + 4H_2O</h2>

Explanation:

•  Propane when reacts with oxygen it gives carbon dioxide and water.

  • In order to make the equation balanced at both ends of the equation,  

Add 4 as a coefficient before on L.H.S (Left Hand Side) of Equation.

• Therefore, the required balanced equation is:

Propane, when added with 5 molecules of Water, yields 3 molecules of Carbon Dioxide and 4 molecules of water, as shown in the below equation -

C_3H_8 +5O_2 = 3CO_2 + 4H_2O

8 0
3 years ago
For the following reaction in aqueous solution, identify all those species that will be spectator ions. Select all that apply.
uranmaximum [27]

The reaction is incorrect. The correct reaction is: Na₂SO₄ + Hg(NO₃)₂ → HgSO₄ + 2NaNO₃. The options are:

A. Hg₂SO₄

B. Na₂SO₄

C. Na⁺

D. NO₃⁻

E. SO₄⁻²

F. Hg₂(NO₃)₂

G. NaNO₃

H. Hg⁺²

Answer:

C, D, E, H

Explanation:

The ions are formed after dissociation of the compound in the solution. When they're negatively charged, they're called anions, when they're negatively charged, they're called cations. If the ion is presented on both sides of the reaction, it is called a spectator ion.

Thus, the reaction given:

Na₂SO₄ + Hg(NO₃)₂ → HgSO₄ + 2NaNO₃

So, let's do the dissociation.

Na₂SO₄ is formed by the ions Na⁺ and SO₄⁻²;

Hg(NO₃)₂ is formed by the ions Hg⁺² and NO₃⁻;

HgSO₄ is formed by the ions Hg⁺² and SO₄⁻²;

NaNO₃ is formed by the ions Na⁺ and NO₃⁻.

Thus, the spectator ions are Na⁺, SO₄⁻², Hg⁺², and NO₃⁻.

7 0
3 years ago
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