Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter, causing the metal to stiffen and fracture. This is known as metal fatige. The bending causes that to occur.
What is metal ?A metal is a substance that has a shiny look when freshly processed, polished, or shattered, and conducts electricity and heat rather effectively. Generally speaking, metals are malleable and ductile.
These characteristics are the outcome of the metallic link that exists between the metal's atoms or molecules.
The earth's crust is where most pure metals are found. They are discovered in ores, which are solid materials from which metals and minerals may be extracted. The majority of the planet's iron mass, which makes up over a third of its mass, is located in its core.
Thus, Metals have a crystalline in nature, and a consistent shift in stress causes the structure to alter.
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After 60 years, how much Strontium-90 remains
A = 10 g
B= 30 g
C = 5 g
D = 20 g
Newton's Third Law of Motion states that objects exert equal forces on each other in opposite directions.
Which of the following examples best describe Newton's Third Law of Motion?
O
A. waiter pulls off the tablecloth but the dishes remain
O
B. a ball rolling down and incline plane
C. a baseball bat resting against a wall
D. truck crashes into a car
Answer:
Truck crashes into a car
why do some react so strongly against Charles Darwin's idea
Some people reacted so strongly because it went against their cultures and religious beliefs
I NEED EXPLANATIONSS!!!! Help , i have to past or my teacher will fail me .. again !!
Answer:
Put simply, Asexual reproduction is reproduction without the use of gametes or the number of chromosomes being changed. So they are genetically identical creatures. Some animals include wasps, lizards, sharks, turkeys, and sea urchins.
Sexual reproduction includes chromosomes and gametes being fused, creating genetically different offspring. Examples of creatures that reproduce sexually are humans, chickens, cow, pigs, etc.
Explanation:
Please help me with this question.
Answer:
B or c
Explanation:
It might bee
Can someone please help me with the page on the right please
2. The air pressure inside a submarine is 0.56 atm. What would be the pressure in
mmHg?
Help me pls ,what is this
less
Explanation:
Because the strawberries are going to become liquid l
When does only the vertical component of light pass through a Polarizer?
someone help me on this one pls
Answer:
i believe it is mass and distance
Explanation:
i hope that was correct, good luck by the way.
Answer:
I think it's mass and distance
Fill in the blanks
At rest the frog breathes through________
Answer:
a process called predominate?
Answer:
the lining of the mouth
Explanation:
its in their predominate form
1.25 x 10^12 molecules H2SO4 to moles
2.08 × 10⁻¹² mol H₂SO₄
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Atomic Structure
Avogadro's Number - 6.022 × 10²³ atoms, molecules, formula units, etc.Stoichiometry
Using Dimensional AnalysisExplanation:Step 1: Define
1.25 × 10¹² molecules H₂SO₄
Step 2: Identify Conversions
Avogadro's Number
Step 3: Convert
Set up: [tex]\displaystyle 1.25 \cdot 10^{12} \ molecules \ H_2SO_4(\frac{1 \ mol \ H_2SO_4}{6.022 \cdot 10^{23} \ molecules \ H_2SO_4})[/tex]Multiply/Divide: [tex]\displaystyle 2.07572 \cdot 10^{-12} \ moles \ H_2SO_4[/tex]Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
2.07572 × 10⁻¹² mol H₂SO₄ ≈ 2.08 × 10⁻¹² mol H₂SO₄
There are some climates in which there are no living things. true or false
Answer:
True
Explanation:
There are some climates in which there are no living things. The average of the weather is the climate.
What is climate ?Climate is a region's averaged long-term weather pattern over a period of time, usually 30 years. More precisely, it is the average and variation of climatic variables over a period of time that can range from a few months to many millions of years.
Every element of our life is impacted by the climate, including our food supplies, transportation systems, clothing choices, and vacation destinations. It significantly affects our future, our health, and our means of subsistence. Climate is the long-term trend of the weather in any given location.
As an illustration, you can anticipate snow in the Northeast in January or hot and muggy weather in the Southeast in July. Climate is this. Extreme values, such as record-breaking high temperatures or heavy rainfall, are also part of the climatic record.
Thus, there are some climates in which there are no living things.
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How many grams are in 4.2 X 10^2 moles of bromine?
Answer:
The answer is below:
Explanation:
3355.968
A geologist finds an area with a lot of slate, a type of metamorphic rock, on the surface of the land. What might this indicate about Earth's history in this area?
Answer:
Explanation:
Two things that can be deduced by this finding would be that the location was most likely a very muddy area with lots of clay minerals, as well as having lots of crustal movements. This is because slate is created when crustal movement buries clay minerals and other materials in the crust of the Earth. This is later melted and squeezed together from the sheer heat that is applied being so far underground. Therefore, creating what we now know as Slate.
Lithium and magnesium bromide react to produce lithium bromide and magnesium metal
Answer: [tex]2Li+MgBr_2\rightarrow 2LiBr+Mg[/tex]
Explanation:
Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
A more reactive element is one which can easily lose or gain electrons as compared to the other element.
The balanced chemical equation is:
[tex]2Li+MgBr_2\rightarrow 2LiBr+Mg[/tex]
Here Lithium being more reactive than magnesium, it can easily displace magnesium from its salt solution and form lithium bromide and magneium in elemental form.
Na2O is it ionic or covalent
Answer:
Sodium oxide (Na2O) is an ionic compound
Explanation: can i have brain plz!
Which phase of matter will take the shape of its container?
Answer:
Liquid
Explanation:
All liquids take the shape of the container
How does a chemical formula represent a chemical compound?
Answer:
A chemical formula is an expression that shows the elements in a compound and the relative proportions of those elements.
Explanation:
what mass of NH3 (g) is produced when 2 x 10^23 molecules of N2 reacts
Answer:
m=8.58
Explanation:
[tex]n = \frac{m}{mr} [/tex]
N=n÷la
Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, what mass of NH[tex]_3[/tex] (g) produced is 11.23 g.
What is mole?The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.
N[tex]_2[/tex] + 3H[tex]_2[/tex] [tex]\rightarrow[/tex] 2NH[tex]_3[/tex]
moles of N[tex]_2[/tex]= given number of molecules/ 6.022×10²³
= 2 x 0²³/ 6.022×10²³
= 0.33 moles
moles of NH[tex]_3[/tex] produced= moles of N[tex]_2[/tex]×2
=0.66moles
mass of NH[tex]_3[/tex]= moles of NH[tex]_3[/tex]×Molar mass of NH[tex]_3[/tex]
= 0.66 × 17.03
=11.23 g
Therefore, what mass of NH[tex]_3[/tex] (g) produced is 11.23 g.
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what is a liquid? can a liquid change shape or volume
Answer:
A liquid is a substance that is wet and yes it can change shape and volume
Explanation:
How many miles will a person run a 400 km race?
Answer:
248.548
Explanation:
PPPPPPPPLLLLLLLLLSSSSSS HHHHHHEEEEEELLLLPPPPP!!!!!!!!!!!!!!
Answer:
B
Explanation:
The student is not able to move the box in D --> 55N, 0N. Since the net force is 0, it means that no force is being applied. So you will choose answer B from your options.
Hope this helps, thank you !!
The _________________ are either elements or compounds which are present prior to a chemical reaction.
Where does an eagle get the energy it needs to grow and to fly?
Describe how visible light is different from non visible light
Answer:
you can see visible light
Explanation:
Answer:
There is no fundamental difference between visible light and invisible light such as radio waves and X rays. They are all electromagnetic waves that differ in only one way: their wavelength. ... Ultraviolet light, X rays, and gamma rays all have shorter wavelengths than visible light.
Explanation:
yeah
In Period 2, as the elements are considered from left to
right, there is a decrease in
A. Nonmetallic character
b metallic character
C atomic mass
D ionization energy
Answer:
it will option B ,hope it helps
element with same number of valence electrons as iodine:
Fluorine (F), chlorine (Cl), bromine (Br), and iodine (I) all have the same number of valence electrons.
What is valence electron ?
Valence is nothing but a number of electrons in an atom which may either lose or gain to attain the nearest noble gas or inert gas state of electronic configuration.
The valence electrons are contain more energy compared to the electrons present in inner orbits, so they are the part of chemical reaction.
The number of valence electrons of an atom helps to determine a specific chemical properties, like valence or valency, the formation of bonds with other elements, gives an idea of how readily the atoms can form bonds.
Some major characteristics of a valence electron include the valence electron exists only in the outermost electron shell, exist in the inner shell of a transition metal, the atom with the shell of valence electrons are chemically inert, either absorb or release energy in the form of a photon, determine electrical conductivity .
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As you climb through the upper stratosphere, the temperature: increases decreases in constant
Answer:
It increases.
Explanation:
I hope this helps.
Answer:
Increases
Explanation:
Hope this helps :)
Help out please?????
Answer:
A non- metal
Explanation:
Hope u got ur answer