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3 years ago

Which is a class of fingerprint?

1 answer:

3 0

For the first question, the correct answer would be whorls. It is one of the three classes of fingerprints. For the second question, the answer would be an arch. A minutiae are specific points in a fingerprint which is used in fingerprint scanning.

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Calculate the ratio of the mass ratio of SS to OO in SOSO to the mass ratio of SS to OO in SO2SO2. Consider a sample of SOSO in

Veronika [31]

Answer:

The ratio of the mass ratio of S to O; in SO, to the mass ratio of S to O; in SO₂, is 2:1

Explanation:

According to the consideration, let us first find the ratio of S and O in both the compounds

For SO:

$\frac{m_{S} }{m_{O} }= \frac{32}{16}\\\\ \frac{m_{S} }{m_{O} }= 2$

Let us express it as

$SO_{\frac{m_{S} }{m_{O} }} = 2$

For SO₂,

Due to two oxygen atoms in the molecule, the mass of oxygen will be taken two times

$\frac{m_{S} }{m_{O} }= \frac{32}{(2)(16)}\\\\ \frac{m_{S} }{m_{O} }= 1$

Let us express it as

$SO_2_{\frac{m_{S} }{m_{O} }}= 1$

Now, for the ratio of both the above-calculated ratios,

$\frac{SO_{\frac{m_{S} }{m_{O} }}}{SO_2_{\frac{m_{S} }{m_{O} }}}=\frac{2}{1}$

The required ratio is 2:1

3 0

3 years ago

In a solution of a carbonated beverage the water is the...

cestrela7 [59]

Answer;

Solvent

Explanation;

-A solution is a homogeneous mixture that is made of two or more substances. In other words, It is a mixture in which one of the substances dissolves in the other. The substance which dissolves is called the solute while the substance that dissolves the solute is called the solvent.

-In a solution of a carbonated beverage, water acts as the solvent which dissolves the components added as solute to make the beverage. These components include sugars and other types of salts such as sodium citrate, all dissolved in water.

7 0

3 years ago

Read 2 more answers

Ethylene glycol (antifreeze) has a density of 1.11 g/cm3. What is the mass in grams of 387 mL of ethylene glycol?

olga2289 [7]

Cm^3 = mL

1.11 g/cm^3 = 1.11 g/mL

Density (g/mL) multiplied by volume (mL) will give us the mass (g)

1.11 g/mL * 387 mL = 429.57 g

And since we have 3 significant figures, we have 430. g.

6 0

3 years ago

What is the frequency of a wave traveling west with a velocity of 414 meters per second and a wavelength of 1.8 meters? hertz

LuckyWell [14K]

Answer:

230hz

Explanation:

Hello,

To solve this question, we gave to use the relationship between velocity-frequency-wavelength to find the frequency in this question.

V = Fλ

V = velocity or speed of the wave

F = frequency of the wave

λ = wavelength of the wave

Data;

V = 414m/s

λ = 1.8m

f = ?

V = fλ

f = v/λ

f = 414/1.8

f = 230hz

The frequency of the wave is 230hz

7 0

3 years ago

Match each physical property of matter to the appropriate definition

Alekssandra [29.7K]

Physical properties of a substance include, solubility, boiling point, etc.

The correct matching of the physical properties with definition is as follows;

Solubility - the ability of a substance to dissolve in another

Boiling point - the temperature at which a liquid becomes a gas

Density - the amount of mass in a given volume

Buoyant force - the upward force on an object in a fluid

Conductivity - the ability of a substance to transfer heat or electricity

Above, all the physical properties have been properly matched with the corresponding definitions.

Learn more: brainly.com/question/81085

5 0

3 years ago