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WITCHER [35]
4 years ago
11

Tim makes a volcano demonstration for a class. He crafts the volcano out of clay, and then pours vinegar into the baking soda th

at is inside the volcano. What would be the best way for Tim to turn this demonstration into an experiment? He could pour the same amount of vinegar into several different volcanoes containing baking soda, repeating the demonstration. He would be answering the question “What happens when I pour vinegar into baking soda?” He could time how long the volcano bubbles after he pours the vinegar into the baking soda. He would be answering the question “How long will my volcano bubble?” He could measure how far the bubbles travel across the laboratory table after he pours the vinegar into the baking soda. He would be answering the question “How far will bubbles travel across a flat surface?” He could add different amounts of vinegar to the same amount of baking soda and time how long it bubbles each time. He would be answering the question “How does increasing the amount of vinegar affect the amount of bubbles that form?”
Chemistry
2 answers:
shepuryov [24]4 years ago
8 0

Answer:

He could add different amounts of vinegar to the same amount of baking soda and time how long it bubbles each time. He would be answering the question "How does increasing the amount of vinegar affect the amount of bubbles that

Explanation: I took the test

8_murik_8 [283]4 years ago
7 0
Because more vinegar/baking soda = more bubbles!
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Explain the “war of the currents”<br> please help with at least 1 sentence
Alex777 [14]

Answer:

The war of the currents, sometimes called battle of the currents, was a series of events surrounding the introduction of competing electric power transmission systems in the late 1880s and early 1890s.

Explanation:

3 0
3 years ago
The mode of 12, 17, 16, 14, 13, 16, 11, 14,13, 16 is​
RUDIKE [14]

Answer:

<h2>Mean = 14.2</h2><h2>Median = 14</h2><h2>Mode = 16</h2><h2>Range = 6</h2>

Explanation:

__________________________________________________________

<em>Mean = 14.2 or 14</em>

<em>Median = 14</em>

<em>Mode = 16</em>

<em>Range = 6</em>

<em>__________________________________________________________</em>

<em>Here are all the numbers from least to greatest order: 11, 12, 13, 13, 14, 14, 16, 16, 16, 17.</em>

<em>__________________________________________________________</em>

<em>Hope this helps! <3</em>

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8 0
3 years ago
What is the answer A,B,C,D
SVETLANKA909090 [29]

(A) Gamma waves have the highest energy

3 0
4 years ago
SKETCH OF J.JTHOMSON MODEL OF AN ATOM.​
julsineya [31]

Answer:

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8 0
3 years ago
PLEASE HELP ASAP
Lapatulllka [165]

Answer:

See explanation

Explanation:

We must first write the equation of the reaction as follows;

C3H8 + 5O2 ----> 3CO2 + 4H2O

Now;

We obtain the number of moles of C3H8 = 132.33g/44g/mol = 3 moles

So;

1 mole of C3H8 yields 3 moles of CO2

3 moles of C3H8 yields 3 × 3/1 = 9 moles of CO2

We obtain the number of moles of oxygen = 384.00 g/32 g/mol = 12 moles

So;

5 moles of oxygen yields 3 moles of CO2

12 moles of oxygen yields 12 × 3/5 = 7.2 moles of CO2

We can now decide on the limiting reactant to be C3H8

Therefore;

Mass of CO2 produced = 9 moles of CO2 × 44 g/mol = 396 g of CO2

Again;

1 moles of C3H8 yields 4 moles of water

3 moles of C3H8 yields 3 × 4/1 = 12 moles of water

Hence;

Mass of water = 12 moles of water × 18 g/mol = 216 g of water

In order to obtain the percentage yield from the reaction, we have;

b) Actual yield = 269.34 g

Theoretical yield = 396 g

Therefore;

% yield = actual yield/theoretical yield × 100/1

Substituting values

% yield = 269.34 g /396 g × 100

% yield = 68%

8 0
3 years ago
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