Jamie notices that the size of the nail is different, so he does not want to use it later. Thus option B is correct.
What is rusting?Rusting is defined as a rust, a combination of iron oxides, forming on the surface of iron objects or structures.
It can also be defined as a typically reddish-brown oxide generated by the catalytic interaction of iron and oxygen in the presence of water or air moisture.
Rusting is an oxidation reaction.
Oxidation is defined as a type of reaction in which the loss of electrons or the increase in the oxidation state of a molecule or its constituent atoms.
It can also be defined as a process in which atoms or groups of atoms lose electrons.
Thus, Jamie notices that the size of the nail is different, so he does not want to use it later. Thus option B is correct.
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An atom of tin has an atomic number of 50 and a mass number of 119. How many protons, electrons, and neutrons are found in one neutral atom of tin?
A.50 protons, 69 electrons, 50 neutrons
B.50 protons, 50 electrons, 69 neutrons
C.69 protons, 50 electrons, 69 neutrons
D.69 protons, 69 electrons, 50 neutrons
A. On the Periodic Table of Elements, columns are called ______________________; all of these
elements
have the same number of ___________________________.
B. On the Periodic Table of Elements, rows are called _____________________; all of these have the same
number of __________________________.
On the Periodic Table of Elements, columns are called groups ,all of these elements have same number of valence electrons and the rows are called periods and have same number of valence shells.
Periodic table is a tabular arrangement of elements in the form of a table. In the periodic table, elements are arranged according to the modern periodic law which states that the properties of elements are a periodic function of their atomic numbers.
It is called as periodic because properties repeat after regular intervals of atomic numbers . It is a tabular arrangement consisting of seven horizontal rows called periods and eighteen vertical columns called groups.
Elements present in the same group have same number of valence electrons and hence have similar properties while elements present in the same period show gradual variation in properties due to addition of one electron for each successive element in a period.
Thus, columns are called groups ,all of these elements have same number of valence electrons and the rows are called periods and have same number of valence shells.
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Which statement best describes what happens to protein when a steak is cooked?
A)It denatures and coagulates during cooking.
B)It decreases in size as amino acids are lost.
C)It loses bacteria because they are denatured.
D)It undergoes polymerization to form longer chains.
Pls ill give brainliest
Answer:
The answer is A
Explanation:
I got it right on Edg
What types of organisms are most affected by brinicle formation? What are the dangers of brinicles?
Why were the iron fillings in a water a suspension?
ok please help
which goes where and why??
Answer:
well the first one is radiation the second one is conduction and the third one is convection. hope this helps! :)
Explanation:
Which phrase provides the best definition of a landform region?
A a large area where the topography contains the three main landforms
B the border where two different landforms meet
a large area where the topography is made up of one landform
C a large area where the topography is inconsistent and contains multiple landforms
Answer:
a large area where the topography is made up of one landform.
1. List regions experiencing high pressure.
2. Based on the weather shown in Florida, is Florida experiencing high or low
pressure? How would you indicate this on the map above?
3. What kind of front is the South experiencing?
4. Based on this information, what kind of weather do you think the southern part of
the United States is experiencing?
#5. What does this mean about the current weather conditions in Florida?
#6. What does this mean about the current weather conditions in the state of Washington?
Answer:
its the big c
Explanation:
A student looking for an element that will bond with sodium (Na) knows that table salt is a compound of sodium and chlorine (Cl). Based on this information, which of the following elements would MOST likely bond with sodium?
A.argon (Ar)
B.bromine (Br)
C.calcium (Ca)
D.potassium (K)
According to the concept of electronic configuration and valency sodium is most likely to bond bromine.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
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What happens to a wooden log when it is burned?
A.It is completely destroyed.
B.It is completely changed into heat energy.
C.It changes into other types of matter and energy.
D.It physically changes into the gaseous phase.
Answer:
I would say c.
Explanation:
It is transformed into new energy
Fossil fuels are commonly used as a source of energy because _____.
fossil fuels are most readily available.
fossil fuels are a renewable resource.
fossil fuels are best for the environment.
fossil fuels are cost-effective.
Answer:
fossil fuels are cost-effective.
Answer:Fossil fuels are most readily available and fossil fuels are cost-effective.
Explanation:i got this right on my class have a great day!!!=D
In the 1700s, Isaac Newton determined that the force of gravity between two objects depends on the mass of the objects and distance between them. He reasoned that things fall toward Earth because it has so much mass. Then in the 1900s, Albert Einstein worked with new discoveries, such as the fact that light always travels the same speed, and he determined a new explanation of how and why gravity works. Mass and distance still matter in Einstein’s explanation, but speed also matters. Newton’s explanation still works for objects close to Earth, but Einstein’s explanation works for all of the objects in the universe.
Jamie completes the following steps in an experiment to investigate how temperature affects how fast something will rust in water. He places a nail in a bowl of water in the sun and a nail in a bowl of water in the shade. He also leaves an iron nail out of the water in a dry bag out of the sun. Why would Jamie leave one out of the water and out of the sun?
A Jamie also wants to test if the water affects how fast the iron nail will rust.
B Jamie notices that the size of the nail is different, so he does not want to use it later.
C Jamie doing all these steps to create a control group to compare his results to.
D Jamie puts the nail in a cooler place to see if it will rust as fast as the other items.
Answer:
C
Explanation:
Gold atoms can be identified based on the number of which subatomic particles?
A.neutrons
B.electrons
C.nuclei
D.protons
Answer: A
Explanation:
A Gold (Au) atom has 79 protons and 79 electrons. A typical gold atom has 118 neutrons, though there are 18 other radioisotopes discovered so far. 79 is its charge (atomic number), which is both its proton number and electron number
Which reaction is more likely to involve a form of combustion (exothermic)? Explain your reasoning.
Answer:
The general equation for an exothermic reaction is: Reactants → Products + Energy.
please help!!!!!!!!!!!!!!!!!!!!!1
Steve fills a jar with water and adds Epsom salts and ammonia. After five minutes, he observes that white particles have formed and settled at the bottom of the jar. Steve is unable to change these particles back to any of the three original substances by heating or stirring the solution. He isolates the white particles and finds that they have properties that are very different from any of the three starting materials. Which statement BEST explains Steve's observation?
Group of answer choices
A physical change occurred because no color change was observed.
A chemical change occurred because a new substance formed.
A physical change occurred because stirring did not change the solution.
A chemical change occurred because a solid substance formed.
