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3 years ago

In your own words describe the difference between the movement of particles in liquids and the movement of particles in gases.

Chemistry

1 answer:

xxMikexx [17]3 years ago

4 0

In liquids, particles are slightly spaced from each other and move around somewhat freely, but still bump into each other. Gases on the other hand move randomly and rarely bump into each other, thus they are more spaced out.

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Identify the term that matches each electrochemistry definition.

anygoal [31]

Answer: a. Cathode

b. Galvanic cell

c. Anode

d. Electrolytic cell

e. half reaction

Explanation:

Galvanic cell or Electrochemical cell is defined as a device which is used for the conversion of the chemical energy produced in a spontaneous redox reaction into the electrical energy.

Electrolytic cell is a device where electrical energy is used to drive a non spontaneous chemical reaction.

In the electrochemical cell, the oxidation occurs at an anode which is a negative electrode and the reduction occurs at the cathode which is a positive electrode. Thus the electrons are produced at anode and travel towards cathode.

The balanced two-half reactions will be:

Oxidation half reaction : $M\rightarrow M^{n+}+ne^-$

Reduction half reaction : $N^{n+}+ne^-\rightarrow N$

Thus the overall reaction will be: $M+N^{n+}\rghtarrow M^{n+}+N$

4 0

3 years ago

Steroids, which all share the same carbon-ring framework but differ in functional groups that are attached to the basic ring str

lawyer [7]

Answer:

Lipids.

Explanation:

Steroids are known as the type of lipid which consists of 4 rings of carbon atoms. All steroids have 1 five-sided carbon ring and a 3 six-sided carbon ring. They are works as a hormone in the body and secreted by the ovaries and testes.

Steroids differ in functional groups. When this functional group attached to the steroid ring it gives steroids with a different function. They are composed of largely carbon, and hydrogen atoms. They are insoluble in nature in water.

8 0

3 years ago

Bromine has two naturally occurring isotopes. Bromine-79 has a mass of 78.918 amu and is 50.69% abundant. Using the atomic mass

dsp73

Explanation:

Given parameters:

Mass of Br-79 = 78.918 amu

Abundance = 50.69%

Unknown:

Mass of Br - 81 = ?

Solution:

Relative Atomic mass of Br = 80

The proportion by which each fraction of an isotope occurs in nature is called the geonormal abundance.

RAM = Ma Ba + McBc

The formula above is used to find the average mass of the given isotopes.

Since we know the percentage abundance of Br-79, that of Br-81 = 100-50.69= 49.31%

RAM = Ma Ba + McBc

RAM = relative atomic mass

Ma Ba = mass and abundance of Br-79

McBc = mass and abundance of Br-81

80 = (78.918 x $\frac{50.69}{100}$ ) + ( $\frac{49.31}{100}$ x C)

80 = 40 + 0.49C

0.49C = 40

C = $\frac{40}{0.49}$ = 81.63amu

learn more;

Isotopes brainly.com/question/10862182

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6 0

3 years ago

The charge to mass ratio of proton is 9.57×104C/gm determine the mass of proton

Whitepunk [10]

mabye ask your teacher Explanation:

6 0

3 years ago

Air pressure is measured in pascals. For a professional American football game, the ball should be inflated to about 90,000 pasc

Tatiana [17]

The variable "air pressure inside the football" in this experiment is quantitative and dependent variable. Hence, option D is correct.

<h3>What is the dependent variable?</h3>

The dependent variable is the variable that is being measured or tested in an experiment.

In the experiment, the scientist filled the footballs with fix quantity of pressure which was then kept for 12 hours. After 12 hours the pressure inside the footballs was again measured. Pressure here is a quantitative variable.

Since the air temperature is an independent variable. The pressure being the dependent variable depends upon the temperature of the air.

Independent variable; The variable which does not depends upon any other variable.

Dependent variable; The variable which depends upon the independent variable or varies with the change independent variable.

Qualitative variables are variables which cannot be expressed in form of numbers. They generally convey the characteristic, category, quality or type.

Whereas Quantitative variables are the variables which can be expressed in the form of numbers. These are the variables which exist along the continuous sequence.

Learn more about dependent variables here:

brainly.com/question/1479694

#SPJ1

7 0

2 years ago