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enot [183]
2 years ago
12

Which type of material incorporates a variety of substances to enhance desired properties such as strength and flexibility?

Chemistry
1 answer:
Blizzard [7]2 years ago
4 0

Answer:

its a polymer

Explanation:

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If 2 molecules of one reactant combine with 3 molecules of another to produce 5 molecules of a product, then what is the represe
zhenek [66]

Answer:- 2A+3B\rightarrow 5C

Explanations:- Let's say the first molecule is A and the second molecule is B and the product molecule is C.

From given information, 2 molecules of A react with 3 molecules of B to produce 5 molecules of C.

We write the reactants on left side and the product on right side and there is an arrow between them from reactants towards the products.

So, the reaction could be represented as:

2A+3B\rightarrow 5C


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When an erythrocyte is removed from circulation the iron ion of hemoglobin?
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Transporting metals, ions, water-insoluble molecules, and hormones. .... When erythrocytes are removed from circulation,
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Please Help!!
Oksi-84 [34.3K]

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2K + Br2 --> 2KBr is the answer

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3 years ago
The dissolution of 0.200 l of sulfur dioxide at 19 °c and 745 mmhg in water yields 500.0 ml of aqueous sulfurous acid. The solut
aivan3 [116]

Answer:

Molarity=1.22\ M

Explanation:

Given:  

Pressure = 745 mm Hg

Also, P (mm Hg) = P (atm) / 760

Pressure = 745 / 760 = 0.9803 atm

Temperature = 19 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15  

So,  

T₁ = (19 + 273.15) K = 292.15 K  

Volume = 0.200 L

Using ideal gas equation as:

PV=nRT

where,  

P is the pressure

V is the volume

n is the number of moles

T is the temperature  

R is Gas constant having value = 0.0821 L.atm/K.mol

Applying the equation as:

0.9803 atm × 0.200 L = n × 0.0821 L.atm/K.mol × 292.15 K  

⇒n = 0.008174 moles

From the reaction shown below:-

H_2SO_3+2NaOH\rightarrow Na_2SO_3+2H_2O

1 mole of H_2SO_4 react with 2 moles of NaOH

0.008174 mole of H_2SO_4 react with 2*0.008174 moles of NaOH

Moles of NaOH = 0.016348 moles

Volume = 13.4 mL = 0.0134 L ( 1 mL = 0.001 L)

So,

Molarity=\frac{Moles\ of\ solute}{Volume\ of\ the\ solution}

Molarity=\frac{0.016348}{0.0134}\ M

Molarity=1.22\ M

8 0
3 years ago
Be sure to answer all parts.
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a)3^2 = 9 times

b)2^2*2 = 8 times

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