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Naily [24]
2 years ago
7

Raul designs a device to protect a raw egg from cracking when dropped from different heights. He wants his device to be as light

weight as possible while safely from a 3-meter distance. Raul builds a device that has foam and aluminum on the outside and then tests his device. His initial prototype is made of one layer of aluminum foil and a 2 cm thick layer of soft foam.
His hypothesis was: If I throw an egg covered with 2 cm foam and 1 layer of aluminum foil from a three-meter distance, then the egg will not break because energy will be transferred but stopped by these materials.

What conclusion would he get from the experiment? Explain your answer. Was his hypothesis correct or wrong? Explain your answer Explain one way in which Raul can improve the design of his prototype using what you have learned about transferring potential and kinetic energy to conduct another round of tests

Chemistry
1 answer:
Pepsi [2]2 years ago
3 0

Rahul's hypothesis was proved wrong after the experiment.

<h3>What is a hypothesis?</h3>

A research hypothesis is a statement of expectation or prediction that will be tested by research.

According to the experiment table up to 2 m height, the egg is safe, but after at 3 m height, his hypothesis went wrong.

Hence, we can say that without an experiment, a hypothesis can't be proved true.

Learn more about the hypothesis here:

brainly.com/question/17246563

#SPJ1

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How many moles is 22.4 liters of oxygen gas at standard temperature and pressure represent
makkiz [27]

Answer:

So 1 mole

Explanation:

PV = nRT

P = Pressure atm

V = Volume L

n = Moles

R = 0.08206 L·atm·mol−1·K−1.

T = Temperature K

standard temperature = 273K

standard pressure = 1 atm

22.4 liters of oxygen

Ok so we have

V = 22.4

P = 1 atm

PV = nRT

n = PV/RT

n = 22.4/(0.08206 x 273)

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7 0
3 years ago
Use the periodic table to select which type of bond is present and which of the listed properties is most likely for each substa
jenyasd209 [6]

Answer:

A = Metallic Bond

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Since the bond is between two metals (located in groups 11 and 12), they would experience metallic bonding. Metallically bonded molecules have high melting and boiling points due to the strength of the metallic bond. They also experience strong electrical current due to the there delocalized electrons.

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2 years ago
how does the percentage by mass of the solute describe the concentration of an aqueous solution os potassium sulfate
kirza4 [7]

Answer:

Explanation:

In an aqueous solution of potassium sulfate (K₂SO₄), the solute is K₂SO₄ and the solvent is water. The percentage by mass describes the grams of solute there are dissolved per 100 grams of solution. It can be calculated as:

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For example, in an aqueous solution which is 2% by mass of K₂SO₄, there are 2 grams of K₂SO₄ per 100 g of solution.

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