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yanalaym [24]
2 years ago
15

Age

Chemistry
1 answer:
cupoosta [38]2 years ago
5 0

Answer:

Option (2)

Explanation:

Since the amount of each sample is the same, we are looking for the metal with the greatest density, which is copper.

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What mass of carbon monoxide is needed to react with 1000g of iron oxide?
maw [93]

Answer:

The equation for one of the reactions in the process of turning iron ore into themetal isFe2O3(s) + 3 CO(g) -> 2 Fe(s) + 3 CO2(g)If you start with 2.00 kg of each reactant, what i…

Explanation:

The equation for one of the reactions in the process of turning iron ore into the metal isFe2O3(s) + 3 CO(g) -> 2 Fe(s) + 3 CO2(g)If you start with 2.00 kg of each reactant, what i…

4 0
3 years ago
Which of the following is an acid-base neutralization reaction?
algol13

Answer:

D

Explanation:

The reaction in which an acid reacts with a base to form salt and water is called acid base reaction.

here, HCL ( strong acid) reacts with KOH (strong base) and KCL (salt) and H2O (water) is formed.

3 0
3 years ago
Below is a list of molecules with different chemical characteristics. Knowing that all molecules will eventually diffuse across
Ilia_Sergeevich [38]

Answer:

c. estrogen > propanol > alanine > sodium

Explanation:

The phospholipid bilayer is formed by amphoteric lipids, the nonpolar region is inside the bilayer, so the diffusion of nonpolar molecules are easy (nonpolar reacts with nonpolar) and generally occurs passively (without loss of energy). With the increase of the polarity, the diffusion became difficult and slow. All the molecules are shown below.

Estrogen has two points of polarity in its hydroxides, but the carbon rings stabilize the molecule, and it has low polarity. Then, propanol has only one hydroxide and is the second-lowest polar molecular. Alanine has two points of polarity because oxygen and nitrogen have high electronegativities. Then, the ion sodium has a charge and has no stabilization such as the molecules, so it is the most difficult to diffuse.

5 0
3 years ago
C2 H6 +02 equals CO2 + H2O what mass of water is produced from three moles of C2 H6?
yulyashka [42]

Answer:

162g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is given below:

2C2H6 + 7O2 —> 4CO2 + 6H2O

Next, we shall determine the number of mole of water, H2O produced by the reaction of 3 moles of C2H6.

This can be obtained as follow:

From the balanced equation above,

2 moles of C2H6 reacted to produce 6 moles of H2O.

Therefore, 3 moles of C2H6 will react to produce = (3 x 6)/2 = 9 moles of H2O.

Therefore, 9 moles of H2O is produced from the reaction.

Finally, we shall convert 9 moles of H2O to grams.

This can be done as shown below:

Molar mass of H2O = (2x1) + 16 = 18g/mol

Mole of H2O = 9 moles

Mass of H2O =..?

Mole = mass / molar mass

9 = mass of H2O /18

Cross multiply

Mass of H2O = 9 x 18

Mass of H2O = 162g

Therefore, 162g of H2O were produced from 3 moles of C2H6.

8 0
3 years ago
Calculate the mass percent composition for Al(HCO3)3
ZanzabumX [31]

Answer:

salamat sapoints po lods thaks

7 0
2 years ago
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