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Natasha2012 [34]
3 years ago
8

Rutherford’s gold foil experiment demonstrated that

Chemistry
1 answer:
iVinArrow [24]3 years ago
4 0

Answer:

Explanation:

The space between the large nucleus and the electrons is huge. We know this because the alpha particles shot at the gold foil most went right on through. That means that the space between hold atoms is very large.

B

Not only that but the deflection that takes place is not frequent further telling us that the the nucleus must be positively charged. That observation comes from the deflection itself. The charge on the nucleus must be the same as the alpha particle. If they were different, and the nucleus was negative, those particles that were deflected would now be absorbed.

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Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 3.11 kg
SpyIntel [72]

Answer:

The volume is 3.96 dL

Explanation:

<u>Step 1: Convert ml to dl</u>

1Liter = 1000ml = 10³ ml

1Liter = 10 dl

⇒ 1 Liter has 1000ml or 10 dl

⇒ The ratio can be written as : 10dl/ 1000ml = 1 dl / 100ml

<u>Step 2: Convert cm³ </u>=

⇒ 1cm³ is equal to 1 ml.

<u>Step 3:  Calculate volume</u>

⇒ We use the formule of density here, which is : Density (p) = mass (g) / volume( cm³)

⇒ 7.86 g/ cm³  = 3110 grams / Volume ( cm³)

⇒Volume = 3110 grams / 7.86g/cm³ = 395.67 cm³

395.67 cm³ = 395.67 ml = 0.39567 L  = 3.96 dL

3.96 dL is reported to three significant digits due to the precision reported for the density.

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3 years ago
Name an element or elements in the periodic table that you would expect to be chemically similar to potassium. check all that ap
Inga [223]
It would have to be all elements in the same family, so since potassium is an Alkali Metal the similar chemicals would be...Lithium, Sodium, Rubidium, Cesium, Francium.
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Answer:

Aluminum is ideal for aircraft manufacture because it's lightweight and strong. Aluminum is roughly a third the weight of steel, allowing an aircraft to carry more weight and or become more fuel efficient. Furthermore, aluminum's high resistance to corrosion ensures the safety of the aircraft and its passengers.

Explanation:

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