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Fudgin [204]
3 years ago
14

Which of the following describes a critical component of a “fair test”?

Chemistry
2 answers:
Yuki888 [10]3 years ago
3 0
I think it is the third one because it just makes more sense to me

Bad White [126]3 years ago
3 0

Answer:

A fair test should have a specific methodology for data collection.

Explanation:

A fair test should be carried out without prejudice or bias. This means that the outcome would be accepted and not influenced by the researcher. To achieve this, there must be a specific methodology for data collection to avoid any form of influence.

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A graduated cylinder is filled with 50.7 mL of water. If a 10.0 g piece of zinc metal is added to the water, and the volume rise
Triss [41]

Answer:

<h3>The answer is 7.14 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 10 g

volume = final volume of water - initial volume of water

volume = 52.1 - 50.7 = 1.4 mL

We have

density =  \frac{10}{1.4}  \\  = 7.142857...

We have the final answer as

<h3>7.14 g/mL</h3>

Hope this helps you

5 0
3 years ago
Is A B C or D I need help
Citrus2011 [14]
Your answer would be D!;)
7 0
3 years ago
Changes is sea level can result from water being locked inside a
s2008m [1.1K]
Seawater becomes warmer it expands. Heat in the upper layer of the ocean is released quickly into the atmosphere. However, heat absorbed by the deeper layers of the ocean will take much longer to be released and therefore, be stored in the ocean much longer and have significant impacts on future ocean warming.

An increase in freshwater inputs from mountain glaciers, ice sheets, ice caps, and sea ice, as well as other atmospheric and hydrologic cycles due to rising global surface and ocean temperatures
6 0
3 years ago
Give the expression for the solubility product constant for baf2.
svetoff [14.1K]

<span>Solubility product constant (Ksp) is </span>applied to the saturated ionic solutions<span> which are in equilibrium with its solid form. The solid is partially dissociated into its ions.</span><span>

For the BaF, the dissociation as follows;
BaF</span>₂(s) ⇄ Ba²⁺(aq) + 2F⁻(aq)

<span>
Hence,
        Ksp = [Ba</span>²⁺(aq)] [F⁻(aq)]²

3 0
3 years ago
Chemical reactions that ____ energy will not occur without a source of energy
andrezito [222]
Chemical reactions that release energy will not occur without a source of energy.  So the answer is release.
4 0
3 years ago
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