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yan [13]
3 years ago
7

SHOW WORK A football field is 120.0 yards long, how long is a football field in inches?

Chemistry
1 answer:
k0ka [10]3 years ago
3 0
4320 inches
(Multiply the length value by 36)
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Engineers find a new metal that is stronger than steel but much lighter. This
user100 [1]

Answer:

D

Explanation:

I think they would design a airplane with this new metal first because they have to find the right balance for this new type of metal. They can't just sell a airplane with a new metal that has a different weight immediately they need to test it and design it first.

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How to calculate the amount of Moles of calcium carbonate<br> Show work
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1 moles Calcium Carbonate = 100.0869 gram using the molecular weight calculator and the molar mass of CaCO3. ... How many moles Calcium Carbonate in 1 grams? The answer is 0.0099913175450533.

Explanation:

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Many classic experiments have given us indirect evidence of the nature of the atom. Which of the experiments listed below did no
uranmaximum [27]

Answer:

Option A, The Rutherford experiment proved the Thomson "plum-pudding" model of the atom to be essentially correct.

Explanation:

Thomson's plum pudding model:

Plum pudding model was proposed by J.J Thomson. In Thomson's model, atoms are proposed as sea of positively charge in which electrons are distributed through out.

Result of Rutherford experiment:

As per Rutherford's experiment:

Most of the space inside the atom is empty.

Positively charge of the atom are concentrated in the centre of the atom known as nucleus.

Electrons are present outside the nucleus and revolve around it.

As it is clear that, result of Rutherford experiment did not supported the Thomson model.

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A gas cylinder contains exactly 15 moles of oxygen gas (O2). How many molecules of oxygen are in the cylinder? 4.01 × 1022 molec
kolezko [41]
Moles are used conveniently in chemistry especially in stoichiometric calculations involving reactions. The unit of mole is a collective term that holds 6.022×10^23 particles. These particles is a general term for any small units of matter including molecules, atoms and sub-particles. This ratio of 6.022×10^23 particles to 1 mole is known to be the Avogadro's number. Its exact number is actually <span>6.0221409</span>×10^23. We use this constant in our stoichiometric calculation as follows:

15 moles oxygen * (6.022×10^23 molecules/ 1 mole oxygen) = 9.033×10^24 molecules of oxygen
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Sprinter set in starting blocks at the beginning of a race rely on what kind of energy conversion
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They convert chemical potential energy (stored in muscle cells) to kinetic energy (running)
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