Ca is -2
Be is stabilized
Ba is -4
Sr is -3
so it would be => Ba, Sr, Ca, Be
have a wonderful day! :)
The arrangement of the alkaline earth metals from the lowest to highest electronegativity is; Ba< Sr< Ca<Be
Electronegativity refers to the ability of the atoms of an element in a compound to attract the shared electrons of that bond towards itself. It is a property that decreases down the group but increases across the period.
Electronegativity increases across the period as atoms of elements become smaller in size and decreases down the group because of increase in distance between the valence electrons and nucleus.
Since electronegativity decreases down the group, the order of electronegativity from lowest to highest is; Ba< Sr< Ca<Be
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which location will experience the greatest amount of weathering
Answer:
Explanation:
Weathering occurs fastest in hot, wet climates. It occurs very slowly in hot and dry climates.
How many moles of PbCl2 are produced
if 14 moles of AlCl3 are consumed?
3Pb(NO3)2 + 2AlCl3 + 3PbCl2 + 2A1(NO3)3
Answer:21 moles of PbCl2 formed
Explanation: 3Pb(NO3)2(aq) + 2AlCl3(aq) --> 3PbCl2(s) + 2Al(NO3)3(aq)
14 moles AlCl3 x 3 moles PbCl2/2 moles AlCl3 =21 moles of PbCl2 formed
The number of moles of PbCl₂ produced when 14 moles of AlCl₃ are consumed in the reaction is 21 moles
Balanced equation3Pb(NO₃)₂ + 2AlCl₃ —> 3PbCl₂ + 2Al(NO₃)₃
From the balanced equation above,
2 moles of AlCl₃ reacted to produce 3 moles of PbCl₂.
How to determine the mole of PbCl₂ producedFrom the balanced equation above,
2 moles of AlCl₃ reacted to produce 3 moles of PbCl₂.
Therefore,
14 moles of AlCl₃ will react to produce = (14 × 3) / 2 = 21 moles of PbCl₂.
Thus, 21 moles of PbCl₂ were obtained from the reaction.
Learn more about stoichiometry:
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how many atoms are in 0.25 moles of nitrogen
Answer:
0.25 mole of NO2 contains 0.25 mole 'N'
one mole contains 6.023 x 10 ^23 atoms
0.25 mole II------------------------------>?
= 0.25 x 6.023 x10^23 = 1.5 x 10^23 atoms
Explanation:
What is the un-balanced equation for this
reaction?
Mg +0 --> Mgo
Mg + 02
--> Mg02
Mg + 02 --> Mgo
Answer:
2Mg + O2 → 2MgO
Explanation:
I need help, decreases or increases
Answer:
increase
Explanation:
Predict the products
Answer:
1. No reaction.
2. ZnCl₂ + H₂
3. CaCl₂ + H₂
Explanation:
1. Cu + HCl —> ___
From the reactivity series of metals, H is higher that Cu in the series and so, Cu can not displace H from solution.
Therefore, no reaction will occur.
2. Zn + HCl —> ___
Zn is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.
The balanced equation is given below:
Zn + 2HCl —> ZnCl₂ + H₂
3. Ca + HCl —> ___
Ca is higher than H in the activity series so, it will displace H from acid solution to produce hydrogen gas, H₂.
The balanced equation is given below:
Ca + 2HCl —> CaCl₂ + H₂
Hey will anyone help sign or buy from my fundraiser or petition? I just posted it and someone just answer no, which isnt helping.
here is the petition: https://www.change.org/p/eric-j-holcomb-change-healthcare-in-indiana
here is the fundraiser: https://www.customink.com/fundraising/change-healthcare-in-indiana
Answer:
signed!!
Explanation:
mark me brainliest pls
Answer:
if it means i could help ppl across the world, then yes! sighned! i dont
have money so i cant do the fundraiser aYvY SORRY
Explanation:
1)Where are irons in our body ?
2) Is there some difference in the way metals and non– metals react with acid ?
Answer:
iron is found in the red blood cells of your blood called hemoglobin and in muscle cells called myoglobin. Hemoglobin is essential for transferring oxygen in your blood from the lungs to the tissues.
2( non- metals generally do not react with acids but metals react with acids and produce hydrogen gas that burns with a 'pop' sound. You must have noticed that copper does not react with dilute hydrochloric acid even on heating but it reacts with sulphuric
How is an acid or base like a solution? How is it different?
why is nuclear a good energy source?
Answer
well it gets used
Explanation:
because it generates power through fission
Predict the products:
Ni + KCl →
o Nickel chloride and potassium forms
o Hydrochloric acid forms.
o Potassium Nickel Chloride forms.
o No reaction occurs.
Explanation:
Ni + 2KCl → 2K + Nicl2
It form
potassium and nickel chloride.
I’ll really appreciate it if you help me out on this one .
Answer:
i'd say D
Explanation:
the dependent variable is the change that happens
Around what pH are most of the substances in your body? Why?
Answer:
The pH scale measures how acidic or alkaline — basic — something is. Your body works constantly to carefully control pH levels of blood and other fluids. The body's pH balance is also called the acid-base or acid-alkaline balance. The right pH levels are needed for good health.
Any skilled chemists want to give me some backup?
Answer:
SO2, HCI and NH3
Explanation:
these three compounds vary inversely with the temperature
Help which one will it be
Answer:
D
Explanation:
Answer:
the answer is D I did that one in 5th grade
Where glucose is broken down into smaller molecules to produce energy. The second part of the process takes place in the
Answer:
Mitochondria
Explanation:
Glucose in an energy molecule contained in carbohydrate food substances. The end product of the digestion of carbohydrate is glucose which is broken down to produce energy.
The sequence of breakdown of glucose is as follows; In the first step, 6-carbon glucose is broken down into two molecules of 3-carbon pyruvic acid. This occurs in the cytoplasm of the cell. It is an anaerobic process.
In the second step which occurs in the mitochondrion, each of the molecules of pyruvic acid is now oxidized to carbon dioxide and water and energy is produced in the process.
What is the answer
A. North
b. South
C.east
D west
How many moles of O2 are produced in the decomposition of 24 g of water in the
following reaction?
2H20 - 2H2 + O2
How many moles of O are there in 41.8 grams of O?
Answer:
[tex]\boxed {\boxed {\sf 2.61 \ mol \ O}}[/tex]
Explanation:
To convert from grams to moles, the molar mass is used. This number tells us the grams per mole of a substance. It can be found on the Periodic Table. Look for oxygen.
Oxygen (O): 15.999 g/molUse this number as a ratio.
[tex]\frac {15.999 \ g \ O }{ 1 \ mol \ O }[/tex]
Multiply by the given number of moles.
[tex]41.8 \ g \ O *\frac {15.999 \ g \ O }{ 1 \ mol \ O }[/tex]
Flip the fraction so the grams of oxygen cancel.
[tex]41.8 \ g \ O *\frac { 1 \ mol \ O }{ 15.999 \ g \ O}[/tex]
[tex]41.8 *\frac { 1 \ mol \ O }{ 15.999 }[/tex]
[tex]\frac { 41.8 \ mol \ O }{ 15.999 }= 2.61266329146 \ mol \ O[/tex]
The original measurement of grams has 3 significant figures (4, 1, and 8). Our answer must have the same. For the number we calculated, that is the hundredth place. The 2 in the thousandth place tells us to leave the 1.
[tex]2.61 \ mol \ O[/tex]
41.8 grams of O has 2.61 moles of oxygen.
1) If you have 2.6 moles of iron (III) oxide, how many molecules of iron (III)
oxide do you have?
Answer:
234
Explanation:
so 3 x 3 x 26 =234
Please help asap!
Subject: science
I just need some easy answers :)
Answer:
help with what? Let me know in the comments! :)
Explanation:
Guys I need ur help I might as well just ask ur smarties for help ahah n yup I’ll be brainlisting;)
1) What have been the wider effect on the community of nuclear accidents? (Chernobyl)
Answer:
Hey sis
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what are 5 functions of proteins
find the area given rectangle.
The length and and breadth of a rectangle are 3abc³ and 4abc units. The area of rectangle is __ sq.unit .
Answer:
The perimeter of a Rectangle P= 2(l + b)
Area of a Rectangle A = l × b
gold has a density of 19.32 g/cm3 if you cut a piece of gold in half how much will the density of each piece be?
Answer:
19.32 g/cm³
Explanation:
The density will remain the same no matter how many times you cut the gold. The density is g/cm³ or g/mL. Density is essentially how many grams 1 mL of a compound weighs.
Answer:
[tex]\boxed {\boxed {\sf 19.32 \ g/cm^3}}[/tex]
Explanation:
Density is the mass per volume (g/mL or g/cm³). It is an intrinsic property. This means it is not dependent on the amount and all samples of the same substance have the same density.
Therefore, if a piece of gold has a density of 19.32 grams per cubic centimeter and it is cut in half, the two pieces will have the same density.
Why wasn't the water pasteurized? I chose Claim 1: If you follow the instructions, the POW kits will always heat the water above the correct temperature for pasteurization (65°C), but some people didn't follow the instructions Can someone help me support it?
Answer:
Claim 1- The evidence that supports my claim because Evidence Card b says “One man got sick, but his two children did not. He used water from Whip River. He used the cube to heat the first pitcher of water, which he gave to his kids, and then reused the cube without reheating for the second pitcher, which he drank himself.” My first piece of evidence is that if you don't follow thee directions then something bad would happen
Explanation:
What mass of oxygen is required to react completely with the burning of 25.0 g of hexane?
Answer:
88.2
Explanation:
Which equation represents a neutralization reaction?
Answer: The equation represents a neutralization reaction is HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(). The answer is letter C.
Answer:
The answer is C.
Explanation:
Edge2021
the cl-cl bond will react more readily, because it has a
The Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.
What is bond energy?The bond energy refers to the energy required to break the bonds that links two atoms together in a molecule. It is equal to the energy that is evolved when the bond is formed.
In comparing the Cl-Cl bond with the C-H bond, we will find out that the Cl-Cl bond will react more readily because it has a lower bond energy than the C- H bond.
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At what temperature would the volume of a gas be equal to 45.7 L, if the volume of that gas was 33.9 L at 12.4ºC? 241.9 K 241.9 K 451.2 K 451.2 K 384.7 K 384.7 K 273.15 K
Answer:
The temperature will be 384.7 K
Explanation:
Charles's Law consists of the relationship that exists between the volume and the temperature of a certain quantity of ideal gas, which is maintained at a constant pressure, by means of a constant of proportionality that is applied directly. For a given sum of gas at a constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases because the temperature is directly related to the energy of the movement of the gas molecules. .
In summary, Charles's law is a law that says that when the amount of gas and pressure are kept constant, the quotient that exists between the volume and the temperature will always have the same value:
[tex]\frac{V}{T} =k[/tex]
Having an initial state 1 and a final state 2, the following is true:
[tex]\frac{V1}{T1} =\frac{V2}{T2}[/tex]
In this case:
V1= 33.9 LT1= 12.4 C= 285.4 K (being 0 C= 273 K)V2= 45.7 LT2= ?Replacing:
[tex]\frac{33.9 L}{285.4 K} =\frac{45.7 L}{T2}[/tex]
Solving:
[tex]T2=45.7 L*\frac{285.4 K}{33.9 L}[/tex]
T2= 384.7 K
The temperature will be 384.7 K