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2 years ago

A well designed experiment can be replicated by other true or false

Chemistry

2 answers:

Nadya [2.5K]2 years ago

8 0

The correct answer is actually true

oksano4ka [1.4K]2 years ago

6 0

The correct answer is false.

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What is the formula for the compound copper (II) sulfate pentahydrateA. C2S3•6H2O

-Dominant- [34]

Answer:

copper (II) sulfate pentahydrate

==>

$CuSO _{4}.5H _{2}O$

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2 years ago

Is an apple seed a compound or a mixture?

vaieri [72.5K]

Answer:

Compound

Explanation:

compound: Substance that is made up of more than one type of atom bonded together

mixture: a combination of two or more elements of compound which are not chemically bonded

5 0

3 years ago

Read 2 more answers

What did the professer use a catalyst for the flubber experiment

Anettt [7]

In the 1997 movie called, Flubber, the professor used an organic catalyst and a little touch of electricity to make flubber. The organic substance is not known.
Thank you for posting your question here at brainly. I hope the answer helps.

7 0

2 years ago

Gasoline and kerosene (specific gravity 0.820) are blended to obtain a mixture with a specific gravity of 0.770. Calculate the v

Dmitrij [34]

Answer:

The volumetric ratio is 0,71

Explanation:

Let's begin with the equation:

$Db = Mb/Vb$ (1)

Where:

Db: Blend Density, Mb: Blend Mass and Vb: Blend Volume

And we know: $Vb = Vg + Vk$ (2)

Where:

Vg: Gasoline Volume and Vk: Kerosene Volume

Therefore replacing (2) into (1):

$Db = (Mg + Mk) / (Vg + Vk)$

$Db = (Dg * Vg + Dk * Vk)/(Vg + Vk)$ (3)

Where:

Dg: Gasoline Density and Dk: Kerosene Density

The specific gravity is defined as:

$SG = Substance Density / Reference Density$

Therefore:

$Db = SGb * Dref\\Dg = SGg * Dref\\Dk = SGk * Dref$

Where:

Dref: Reference Density

SGb: Blend Specific Gravity

SGg: Gasoline Specific Gravity (which is 0.7 approximately)

SGk: Kerosene Specific Gravity

Replacing these equations into (3) we get:

$SGb * Dref = (SGg * Dref * Vg + SGk * Dref * Vk)/(Vg + Vk)$

$SGb * Dref = Dref * (SGg * Vg + SGk * Vk)/(Vg + Vk)$

$SGb = (SGg * Vg + SGk * Vk)/(Vg + Vk)$

$SGb * (Vg + Vk) = SGg * Vg + SGk * Vk$

$SGb * Vg + SGb* Vk = SGg * Vg + SGk * Vk$

Replacing with the Specific Gravity data, we obtain:

$0.77 * Vg + 0.77 * Vk = 0.7 * Vg + 0.82 * Vk$

$0.77 * Vg - 0.7 * Vg = 0.82 * Vk - 0.77 * Vk$

$0.07 * Vg = 0.05 * Vk$

$Vg/Vk = 0.05/0.07$

$Vg/Vk = 0.71$

8 0

2 years ago

How many grams are equivalent to 1.80x10-4 tons?

zloy xaker [14]

Do you want the estimated answer or the exact answer?

6 0

3 years ago