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3 years ago

Which of the following elements has properties different than the rest? easy BRAINLIEST!!!

Chemistry

2 answers:

Yanka [14]3 years ago

5 0

Answer:

Sulfur/S

Explanation:

Tpy6a [65]3 years ago

5 0

Answer:

Explanation:

Potassium and Sodium are in the same group and have similar properties. Magnesium is in a different group but it's still a metal and fairly reactive. Meanwhile, Sulfur is far across the periodic table and has very different properties.

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Convert mass to moles for both reactants. (Round to 2 significant figures.)

shepuryov [24]

Mass = mr x moles
Mr of CuCl2 = ( 63.5) + ( 35.5 x 2) = 134.5
2.5 = 134.5 x moles
2.5 / 134.5 = moles
Moles = 0.019 (2DP)

0.25g of Al
Mr of Al = 27
0.25 = 27 x moles
0.25/ 27 = 0.0093 moles (2sf)

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3 years ago

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Draw the curved arrow mechanism for the conversion of aniline into benzenediazonium ion, and draw the final product that forms a

kogti [31]

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3 years ago

How many moles of aspartame are present in 1.00 mg of aspartame?

Diano4ka-milaya [45]

Answer:- There are $3.40*10^-^6$ moles.

Solution:- It is a unit conversion problem where we are asked to convert mg of aspartame to moles. Aspartame is $C_1_4H_1_8N_2O_5$ and it's molar mass is 294.31 grams per mole.

mg are converted to grams and then the grams are converted to moles as:

$1.00mg Aspartame(\frac{1g}{1000mg})(\frac{1mole}{294.31g})$

= $3.40*10^-^6$ moles of aspartame

So, there would be $3.40*10^-^6$ moles of aspartame in 1.00 mg of it.

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3 years ago

Can someone help with this please? My teacher isnt responding to any of mine or my classmates requests for help

sergiy2304 [10]

Answer:

CO2 consists of individual molecules with one central carbon atom double bonded to two oxygen atoms. Silicon does not form double bonds with oxygen. CO2 is gas but SiO2 is a solid because SiO2 has a giant molecular structure. CO2 has a simple molecular structure, and because of this, CO2 is gas but SiO2 is solid at room temperature.

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3 years ago

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Find the number of moles of argon in 452 g of argon.

andrey2020 [161]

Answer: 13.31 moles.

Explanation: So take 452 grams of Argon and multiply by the molar mass of Argon. Your units will cancel out, leaving you with moles of Argon.

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3 years ago

Which of the following elements has properties different than the rest? **easy** BRAINLIEST!!!

Which of the following elements has properties different than the rest? easy BRAINLIEST!!!