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Alisiya [41]
3 years ago
15

Which of the following is true about the scientific method?

Chemistry
1 answer:
Blizzard [7]3 years ago
6 0

Answer:

It is a step by step process

Explanation:

<em>You</em><em> </em><em>cannot</em><em> </em><em>do</em><em> </em><em>the</em><em> </em><em>experiment</em><em> </em><em>and</em><em> </em><em>lab</em><em> </em><em>report</em><em> </em><em>without</em><em> </em><em>following</em><em> </em><em>the</em><em> </em><em>steps</em><em> </em>

Hope this is correct and helpful

HAVE A GOOD DAY!

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Some water released 7800 J of energy when cooled from 78°C to 33°C. What was the mass of the water?
Karo-lina-s [1.5K]

Answer:

-41. 47

Explanation:

m = q / Cp x T

m = Mass

q = Energy (or joules)

Cp = Heat Capacity

T = Change in Temperature

Water's heat capacity is always 4.18.

This is the formula you'll need for change in temperature:

Final - Initial

So, 33 - 78 = -45

m = 7800 / 4.18 x -45

= -41.47

4 0
2 years ago
Which of the following statements about connecting paragraphs is correct?
Reika [66]
B.

And maybe put your question in the English/Literature tag next time lol
4 0
3 years ago
Read 2 more answers
The density of lead is 11.3g/cm^3 and the density of chromium is 7.14g/cm^3. If we have one gram of each metal, what is the rati
Lady bird [3.3K]

The ratio of the volume of lead to the volume of chromium is 22 : 35

Density is simply defined as the mass of a substance per unit volume of the substance.

<h3>Density = mass / volume </h3>

To solve the question given above, we'll begin by calculating the volume of lead and chromium. This can be obtained as follow:

<h3>For Lead:</h3>

Mass of lead = 1 g

Density of lead = 11.3 g/cm³

<h3>Volume of lead =? </h3>

Density = mass /volume

11.3 = 1 / Volume

Cross multiply

11.3 × Volume = 1

Divide both side by 11.3

Volume = 1 / 11.3

<h3>Volume of lead = 0.088 cm³</h3>

<h3>For Chromium:</h3>

Mass of chromium = 1 g

Density of chromium = 7.14 g/cm³

<h3>Volume of chromium =? </h3>

Density = mass /volume

7.14 = 1 / Volume

Cross multiply

7.14 × Volume = 1

Divide both side by 7.14

Volume = 1 / 7.14

<h3>Volume of chromium = 0.14 cm³</h3>

Finally, we shall determine the ratio of the volume of lead to the volume chromium. This can be obtained as follow:

Volume of lead = 0.088 cm³

Volume of chromium = 0.14 cm³

<h3>Ratio of the volume of lead to chromium =? </h3>

Ratio = Volume of lead / Volume of chromium

Ratio = 0.088 / 0.14

Ratio = 22 / 35

<h3>Ratio = 22 : 35</h3>

Therefore, the ratio of the volume of lead to the volume chromium is 22 : 35

Learn more: brainly.com/question/17262276

5 0
3 years ago
How much energy was lost in the total process illustrated? Please Help
7nadin3 [17]

Answer:

30%

Explanation:

I don't know how to explain but I learnt this yesterday

8 0
3 years ago
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What happens to metals when they form an ion?
Anastaziya [24]
Metals generally form cations, meaning they become positively charge - this positive charge is due to the loss of electrons.
6 0
3 years ago
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