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3 years ago

Lipids that are liquid at room temperature are known as ____.

Chemistry

1 answer:

zaharov [31]3 years ago

7 0

Lipids that are liquid at room temperature are known as oils.

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Which quantity could best be measured with a meter stick?

Ilya [14]

Answer:

Explanation:

A meter stick measures distances ( like centimeters) so....B

it does NOT measure mass , volume or VERY large distances (Like earth's diameter)

3 0

2 years ago

Read 2 more answers

Determine the mass of chloride (MW = 35.45 g/mol ) in grams present in 100 mL of a 0.273 M solution of aqueous FeCl₃ (iron(III)

Naily [24]

Answer:

The mass chloride is 2.903 grams

Explanation:

Step1: calculate the moles of FeCl3

moles = molarity x volume in liters

volume in liters = 100 ml /1000 = 0.1 L

molarity = 0.273 M = 0.273 mol / L

moles = 0.273 mol /L x 0.1 L = 0.0273 moles

step 2: find the moles of Cl

since there is 3 atoms of cl in FeCl3

= 3 x 0.0273 =0.0819 moles

Step 3: calculate mass of cl

mass= moles x molar mass

=0.0819 moles x 35.45 g/mol = 2.903 g

7 0

3 years ago

What is technology?

vodomira [7]

Answer:

Any device that contains electronic parts

4 0

3 years ago

A sample of pure NO2 is heated to 335 ∘C at which temperature it partially dissociates according to the equation 2NO2(g)⇌2NO(g)+

vodka [1.7K]

The equilibrium constant for the reaction is 0.00662

Explanation:

The balanced chemical equation is :

2NO2(g)⇌2NO(g)+O2(g

At t=t 1-2x ⇔ 2x + x moles

The ideal gas law equation will be used here

PV=nRT

here n= $\frac{w}{W}$ = $\frac{w}{V}$ = density

P = $\frac{density RT}{M}$ density is 0.525g/L, temperature= 608.15 K, P = 0.750 atm

putting the values in reaction

0.75 = $\frac{0.525 x 0.0821 x 608.15 }{M}$

M = 34.61

to calculate the Kc

Kc= $\frac{ [NO] [O2]}{NO2}$

$\frac{1-2x}{1+x}$ x M NO2 + $\frac{2x}{1+x}$ M NO+ $\frac{x}{1+x}$ M O2

Putting the values as molecular weight of NO2, NO,O2

$\frac{46(1-2x) +30(2x)+32x}{1+x}$

34.61= $\frac{46}{1+x}$

x= 0.33

Kc= $\frac{4x^2)x}{1-2x^2}$

putting the values in the above equation

Kc = 0.00662

5 0

3 years ago

The following molecular equation represents the reaction that occurs when aqueous solutions of silver(I) nitrate and iron(III) c

statuscvo [17]

Answer: $3Ag^+(aq)+3Cl^-(aq)\rightarrow 3AgCl(s)$

Explanation:

Complete ionic equation : In complete ionic equation, all the substance that are strong electrolytes and are represented in the form of ions.

The complete ionic equation will be:

$3Ag^+(aq)+3NO_3^-(aq)+Fe^{3+}(aq)+3Cl^-(aq)\rightarrow 3AgCl(s)+Fe^{3+}(aq)+3NO_3^-(aq)$

Net ionic equation : In the net ionic equations, we do not not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

In this equation, $Fe^{3+}$ and $NO_3^-$ are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be:

$3Ag^+(aq)+3Cl^-(aq)\rightarrow 3AgCl(s)$

5 0

3 years ago