CHEMISTRY HIGH SCHOOL

Why rusting takes place more readily in coastal areas

Answers

Answer 1
Answer: Corrosion is a better word to use as Iron is the metal that 'rusts' and it happens more in coastal areas because coasts are humid. Humidity reacts with the metal causing it to corrode and wakening it

Related Questions

Which of the following types of radiation can be shielded by piece of paper or fabric
The balanced chemical equation for the reaction between PCl5 and water is given below. If 3.45 moles of HCl are produced, how many moles of water reacted?PCl5 + 4H2O -> H3PO4 + 5HCl
In which of the following is the number of neutrons correctly represented
Consider a neatly packed box of marbles compared to what you get if you dump the marbles on the floor. Which state has the higher entropy. a. spilled marbles b. marbles in packed box c. none d. both
Which of the following metal atoms would have the highest conductivity?A.the atom with the smallest radius and the fewest valence electrons B.the atom with the smallest radius and the most valence electrons C.the atom with the largest radius and the fewest valence electrons D.the atom with the largest radius and the most valence electrons

Magnetism is believed to be caused by the alignment of small, numerous sub-units called _____. poles fields ions domains

Answers

Magnetism is believed to be caused by the alignment of small, numerous sub-units called domains. A magnetic domain is a small portion in the magnetic fields of atoms that have grouped together and aligned uniformly. To best describe domains, they are often likened to tiny random magnets pointing at different directions within a material. When the material is magnetized, these tiny magnets align and point towards a unified direction.

the answer is domains.................

The nucleus of some isotopes will spontaneously undergo nuclear decay. These isotopes are said to be radioactive. What causes the nucleus of an isotope to be radioactive?a. too many electrons in its orbitals
b. exposure to toxic chemicals
c. the net charge of the atom
d. the attraction of protons to electrons
e. an unstable ratio of protons and neutrons

Answers

e. an unstable ratio of protons and neutrons

The answer is: e. an unstable ratio of protons and neutrons.

Neutrons stabilize the nucleus, because they attract protons and reduce electrical repulsion between protons.

The larger is neutron-proton ratio, the higher is probability for nuclear decay.

Ratio of protons to neutrons in a stable atom is 1 : 1.

For example, nitrogen atom (N-14) has 7 protons (p⁺) and 7 neutrons (n°). The neutron–proton ratio (N/Z ratio or nuclear ratio) is 7 : 7 ( 1 : 1 ).

Another example, neon atom (Ne-20) has 10 protons (p⁺) and 10 neutrons (n°). The neutron–proton ratio is 10 : 10 ( 1 : 1 ).  

The neutron–proton ratio generally increases with increasing atomic number.

1) 513.4 m to cm
Chemistry

Answers

1 meter is equal to 100 centimeters. This means we would have to do 513.4 times 100 to get our answer. The answer is 51340 centimeters.

As the temperature of a chemical reaction in the gas phase is increased, the rate of the reaction increases because(1) fewer particle collisions occur
(2) more effective particle collisions occur
(3) the required activation energy increases
(4) the concentration of the reactants increases

Answers

Answer: option (2) more effective particle collisions occur.


Justification:


Always keep in mind that the temperature is a measure of the average kinetic energy of the particles.


The higher the temperarute the hiigher the kinetic energy.


Also, remeber that the kinetic energy is the energy of motion: the higher the kinetic energy the hgher the speed of the particles and the more energetic the collisions.


Therefore, those more energetic collisions will increase the number of collisions that overcome the activiation energy leading to higher rate of conversion (reaction), whic is what a more effective particle collisions occur mean.

The pH level of tomato juice is 4.2. What is the hydrogen-ion concentration [H+] for tomato juice?A. 0.0004 B. 0.0006 C. 0.00004 D. 0.00006

Answers

The pH of a solution is related to the hydrogen ion concentration in a logarithmic function which is expressed as:

pH = -log[H+]

4.2 = - log [H+]
[H+] = 6.31 x 10^-5 M

Therefore, the correct answer from the choices listed above is option D, 0.00006 M.
pH = 4.2

[H+] = 10 ^- pH

[H+] = 10 ^- 4.2

[H+] = 0.00006 M

Answer D

How are sublimation and evaporation. similar

Answers

They both turn states of matter into gases. Sublimation turns a solid into a gas, while evaporation turns a liquid into a gas. Hope this helps! :)
Other Questions
a ball rolls down a rap . A small amount of friction heats up the ball . what energy transformations are taking place ?
Tetrachloromethane, CCl4, is classified as a(1) compound because the atoms of the elements are combined in a fixed proportion(2) compound because the atoms of the elements are combined in a proportion that varies(3) mixture because the atoms of the elements are combined in a fixed proportion(4) mixture because the atoms of the elements are combined in a proportion that varies
The process J is called deposition. Using water is an example; write an equation that represents the process of deposition.​
Which is a characteristic of mixtures? They are chemically bonded together. They can be classified as pure substances. They have fixed ratios between their components. They can be separated by physical processes.