How many milliliters are in 22 mm3?

What is the key difference between organic and inorganic molecules

Naya [18.7K]

Answer:

See the answer below, please.

Explanation:

Organic compounds are those produced by living beings (molecules associated with living beings) and correspond to carbon compounds (the main difference with inorganic compounds). The latter are produced by natural processes or in the laboratory.

Example of organic products: alkanes (methane), alcohols (ethanol or ethyl alcohol)

Example of inorganic products: sodium hydroxide, sodium chloride

4 0

4 years ago

What is the mass of 2.70 ×10^22 molecules of NaOH (Molar mass = 40.0 g/mol)?

Viefleur [7K]

Data:
Molar Mass of NaOH = 40 g/mol

Solving: <span>According to the Law Avogradro, we have in 1 mole of a substance, 6.02x10²³ atoms/mol or molecules
</span>
1 mol -------------------- 6.02*10²³ molecules
y mol -------------------- 2.70*10²² molecules

6.02*10²³y = 0.270*10²³
$y = \frac{0.270*\diagup\!\!\!\!\!\!10^{\diagup\!\!\!\!\!\!23}}{6.02*\diagup\!\!\!\!\!\!10^{\diagup\!\!\!\!\!\!23}}$
$\boxed{y \approx 0.04\:mol}$

Solving: <span>Find the mass value now
</span>
40 g ----------------- 1 mol of NaOH
x g ------------- 0.04 mol of NaOH

$x = 40*0.04$
$\boxed{\boxed{x = 1.6\:g}}\end{array}}\qquad\quad\checkmark$

Answer:
The mass is 1.6 grams

6 0

3 years ago

A) 2Fe(s) + O2(g) =>

TiliK225 [7]

Answer: -22.2 kJ

Explanation:

According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps. SGDSDGSDGSDGgsg

According to Hess’s law, the chemical equation can be treated as algebraic expressions and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.

(1) $2Fe(s)+O_2(g)\rightarrow 2FeO(s)$ $\Delta H_1=-544.0kJ$

(2) $4Fe(s)+O_2(g)\rightarrow 2Fe_2O_3(s)$ $\Delta H_2=-1648.4kJ$

(3) $Fe_3O_4(s)\rightarrow 3Fe(s)+2O_2(g)$ $\Delta H=+1118.4kJ$

Reversing 1 ,2 and 3 and halving 1 and 2 and then adding we get net equation:

(4) $Fe_2O_3(s)+FeO(s)\rightarrow Fe_3O_4(s)$ $\Delta H_4=?$

$\Delta H_4=\frac{-\Delta H_1}{2}+\frac{-\Delta H_2}{2}+(-\Delta H_3)=\frac{544.0}{2}+\frac{1648.4}{2}+(-1118.4)=-22.2kJ$

Therefore, the heat of reaction, ΔH, for the reaction is -22.2 kJ

6 0

3 years ago

Classify the following mixtures as a 'heterogeneous' or as a 'homogeneous' substance. gasoline [ Select ] soil [ Select ] cranbe

Savatey [412]

The answer is- Gasoline - homogeneous, Soil- heterogeneous, Cranberry juice - homogeneous and Salt water-homogeneous.

Mixture: The substance that has two or more elements or compounds mixed together without binding them chemically is known as mixture.

The constituents of mixture can be separated by various methods.

What are homogeneous and heterogeneous mixture?

Homogeneous mixtures- Homogeneous mixtures are those that have same composition throughout its mass and there are no visible boundaries between its components.

Heterogeneous mixtures- When solute particles are not mixed uniformly in the solvent particles, then a heterogenous mixture is obtained.

Gasoline: It is a homogeneous mixture of various hydrocarbons.
Soil: Soil is a heterogenous mixture and its various components can be seen clearly.
Cranberry juice: It is also a homogeneous mixture as cranberry and water are mixed uniformly.
Salt water is also a homogeneous mixture as salt and water are mixed uniformly.

To learn more about mixtures visit:

brainly.com/question/2849431

#SPJ4

7 0

1 year ago

Read 2 more answers

How does a Camel prevent the loss of water from their body?

Schach [20]

Camels lose less water through their urine and feces than many other mammals. Their kidneys concentrate water heavily, leading to salty urine. The intestines also reabsorb water from intestinal material as it is digested, so dry feces are produced.

7 0

3 years ago