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Liono4ka [1.6K]
3 years ago
13

The symbol mm represents​

Chemistry
2 answers:
Mamont248 [21]3 years ago
8 0

Answer:

millimeters, its just shorter

sladkih [1.3K]3 years ago
7 0

Answer:

millimetre

Explanation:

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Iron is obtained by reaction of hematite (Fe2O3) with carbon monoxide. From the balanced reaction below, how many grams of iron
laila [671]

Answer: 2755.2 g of Fe will be produced from 24.6 mol of haematite.

Explanation:

The balanced chemical equation is:

Fe_2O_3+3CO\rightarrow 2Fe+3CO_2  

According to stoichiometry :

1 mole of Fe_2O_3 produce = 2 moles of Fe

Thus 24.6 moles of Fe_2O_3 will produce=\frac{2}{1}\times 24.6=49.2moles  of Fe  

Mass of Fe=moles\times {\text {Molar mass}}=49.2moles\times 56g/mol=2755.2g

Thus 2755.2 g of Fe will be produced from 24.6 mol of haematite.

3 0
3 years ago
A rectangle solid of unknown density is 5 m long two meters high and 4 meters wide. The mass of this solid is 300 grams. Find th
aksik [14]
D= M/V so, D=300/40 wich is 7.5 so D= 7.5g/m3
6 0
3 years ago
What carboxylic acid would be formed if the malonic ester synthesis (alkylation of diethyl malonate followed by hydrolysis with
uranmaximum [27]

Answer:

cyclohexilic acid

Explanation:

The malonic ester synthesis is often used to form different types of carboxilic acid. In this case, we have excess of base, so we can expect a ring formed in the molecule.

In the first step, the base substract the more acidic hydrogen of the ester. In the next step we have the ester reacting with the dibromopentane. Then, in the next step, the excess of base will substract again the acidic hydrogen remaining of the carbon, and then, will promove a Sn2 reaction with the bromine in the pentane (That it was previously attached to the molecule). In this step, a ring id formed. Then, the hydrolisis with acid, will form carboxilic acid in both sides of the molecule, and finally the decarboxilation in heat will separate the molecule and formed the cyclohexilic acid.

The picture below shows the mechanism

3 0
4 years ago
Astronauts go to live on the International Space Station for a period of ________ month(s). A one B three C six D nine
kumpel [21]

Answer:

The answer is C. six months

Explanation:

I hope this helps you bestie:))

3 0
3 years ago
1. How many grams of CuNO, are required to produce 700.0 mL of a 2.0 M CUNO,
tatyana61 [14]

Answer:

talon ka sa building

Explanation:

para wala kang problema

7 0
4 years ago
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