2. Which of the following interactions would be the weakest?
A. Lit and C4H10
B. 02- and C3Hg
C. Lit and C3H8
D. 02- and C4H10
Answer:
its rather B or C
Im sorry if I was wrong
Explanation:
What happens to ions during bonding to form an ionic compound? O Cations accept electrons and anions give away electrons. O Anions and cations share electrons. O Cations give away electrons and anions accept those electrons.
Answer:
Last one: Cations give away electrons and anions accept those electrons.
Explanation:
Just did it
Answer:
D
Explanation:
"Cations give away electrons and anions accept those electrons."
ASAP please and Thankyou
Explanation:
green is dominate and theres a G in each box that makes it all Green
What volume (liters) of aqueous 0.325 M nitric acid is required to react completely with 3.68 g barium hydroxide?
Volume (liters) of aqueous 0.325 M nitric acid is 0.132 L
Further explanationReaction
2HNO₃ + Ba(OH)₂ → Ba(NO₃)₂ + 2H₂O
mass of Ba(OH)₂ = 3.68 g
mol Ba(OH)₂(MW=171,34 g/mol) :
[tex]\tt mol=\dfrac{mass}{MW}\\\\mol=\dfrac{3.68}{171,34 g/mol}\\\\mol=0.0215[/tex]
From the equation, mol ratio of HNO₃ : Ba(OH)₂ = 2 : 1, so mol HNO₃:
[tex]\tt mol~HNO_3=\dfrac{2}{1}\times 0.0215=0.043[/tex]
Molarity of HNO₃ = 0.325, then the volume of HNO₃ :
[tex]\tt V=\dfrac{n(mol)}{M(molarity)}\\\\V=\dfrac{0.043}{0.325}\\\\V=0.132~L[/tex]
The pressure of a mixture within a rigid container of nitrogen, carbon dioxide and oxygen is 150 kPa. What
is the partial pressure of oxygen if the partial pressures of nitrogen and carbon dioxide are 100 kPa and 24
kPa, respectively?
Answer:
P(O₂) = 26KPa
Explanation:
Given data:
Total pressure = 150 KPa
Partial pressure of nitrogen = 100 KPa
Partial pressure of carbon dioxide = 24 KPa
Partial pressure of oxygen = ?
Solution:
According to Dalton law of partial pressure,
The total pressure inside container is equal to the sum of partial pressures of individual gases present in container.
Mathematical expression:
P(total) = P₁ + P₂ + P₃+ ............+Pₙ
Now we will solve this problem by using this law.
P (total) = P(O₂) + P(N₂) + P(CO₂)
150 KPa = P(O₂) + 100 KPa + 24 KPa
150 KPa = P(O₂) + 124 KPa
P(O₂) = 150 KPa - 124 KPa
P(O₂) = 26KPa
True or false. When an area within an atom is crowded with electrons it is known as a dipole "moment False True
Answer:true
Explanation:
Answer:
im not sure but ill say false
Explanation:
What is magnetic fields?
Why is the Law of Conservation of Mass a law, rather than a theory?
A. It has more scientific evidence supporting it
B. It has both independent and dependent variables
C. It has been tested with the latest laboratory balances, which are very accurate
D. It describes a repeatedly observed relationship, but it does not offer an exclamation
Answer: During a chemical reaction, matter cannot be created nor destroyed, matter can change form through physical and chemical changes, but through any of these changes, matter is conserved; even though the matter may change from one form to another, the same number of atoms exists before and after the change takes place.
Explanation: <3
who will help it science
Answer:
yuh because it's the hot water :)
What are some molecular compounds that we use in everyday life and their products?
Ex: Kirkland water - dihydrogen monoxide; H2O
Answer:
Water. Chemical Formula: H2O.
Table Salt. Chemical Formula: NaCl.
Sucrose (Sugar) Chemical Formula: C12H22O11.
Soaps. Chemical Formula: RCOO–Na, Where R is a long chain of carbon atoms ranging from 16-18 in number.
Toothpaste. Chemical Formula: CaCO3 or NaF.
Explanation:
what is the purpose of making sodium extract for the detection of hetero elements in organic compond?
What is the difference between elements and compounds?
1)Calculate the molar masses for the following compounds.
a)NH4NO3
b) N2O5
c) NaCN
d)(NH4)2SO4
2.a)What is the volume of 0.001 mol of hydrogen (H2) gas at STP?
b)What is the mass of 5.6 L of CO2 gas at STP?
3)a. What is the total number of atoms found in 3 moles of a N2 molecule?
b.Calculate the number of helium (He) atoms if 0.05 moles of He is given.
4.a)What is the mass of 3 moles of NaOH? b)What is the mole number of 22 g of CO2 gas?
5.a)What is the number of moles of 224 L Chlorine (Cl2) gas at STP?
b) Find the masses for the following substances in grams- 1)1.5 mol of water 2)20 mol of C₂2H6 6. If 10 moles of oxygen (O2) molecules are given, calculate the volume of the oxygen molecules at STP.
7. What is the mass of 3 moles of NaOH?
NH4NO3 The molar mass is 80.04336 g/mol
N2O5 The molar mass is 108.01.
NaCN The molar mass is 49.00717 g/mol
(NH4)2SO4 The molar mass is 132.139 g/mol .
Molar masses
The mass in grams of one mole of a chemical is its molar mass.
1) What is the mass of 5.6 L of CO2 gas at STP?
PV = nRT is the ideal gas equation, which links pressure (P), volume (V), and absolute temperature (T).
where R = 8.314 Jmol K-1, the universal gas constant.
1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 mole = 1 atm = 1.1310 5 Nm 2
V=nRT/P =1.8.14.273/(1.013.10 5) =0.0224 m 3
2.24 liters
As a result, a gas's molar volume at STP is 22.4 litres.
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Help someone!!!I will mark you brainliest
Answer:
a) Na2S
b) AlF3
c) O2
d) C6H12O6
Explanation:
please mark me brainliest and 5 star
which
state
one
mose
in poverty?
Answer:
New Hampshire is the most in proverty.
Explanation:
I learned this before.
Answer:
Oklahoma state
Explanation:
please mark me as brainliest
How many moles of Ba(NO3)2 are there in 0.25 L of a 2.00 M Ba(NO3)2 solution?
Use Molarity equals StartFraction moles of solute over liters of solution EndFraction..
0.13 mol
0.50 mol
2.25 mol
8.0 mol
Answer:
0.5moles
Explanation:
Given parameters:
Volume of solution= 0.25L
Molarity of solution = 2.00M
Unknown:
Number of moles = ?
Solution:
To solve this problem;
Molarity is the number of moles of solute in a given volume of solution, so
Number of moles = molarity x volume
Now insert the parameters and solve;
Number of moles = 0.25 x 2 = 0.5moles
Answer:
b
Explanation:
got it right on test
True or False: A polymer is a complex molecule made from smaller,
repeating molecules bonded together.
Which force saves the atom by emitting particles from the nucleus?
Answer:
nuclear force
I hope this helps :)
Explanation:
A compound secreted by honeybees to paralyze intruders in their hive is known as 2-heptanone. The formula for this 2-heptanone compound is CH3C4H8COCH3. How many atoms of each element are in one molecule of 2-heptanone?
Question 2 options:
4 carbon atoms, 11 hydrogen atoms, and 1 oxygen atom
7 carbon atoms, 14 hydrogen atoms, and 1 oxygen atom
7 carbon atoms, 11 hydrogen atoms, and 8 oxygen atoms
6 carbon atoms, 14 hydrogen atoms, and 3 oxygen atoms
Answer:
B
Explanation:
Sorry if wrong
Answer:It’s D, when you add up the atoms for carbon you get 6, and the only answer choice with 6 is D
HELP PLEASE :((( Explain why helium filled balloons deflate over time faster than air filled balloons do?
Answer:
Because helium has more molecules trying to escape at faster rates
Explanation:
Answer:
helium filled balloons tend to deflate over time faster than air filled balloons do because, the average velocity of helium molecules is higher than that of molecules of any gas found in air, so helium escapes through the pores in the balloon more quickly.
Explanation:
after researching I found this and tried to respond as quickly as possible!! hope this helps but it has something to do with the molecules .
Which statement or question is a good hypothesis?
A. Taxicabs are yellow.
B. Red cars are cooler than green cars.
C. Black cars heat up faster in sunlight than white cars.
D. What color of car sells best?
Answer:
c is the awnser
a hypothesis is not a question it is more like a statment and something that could be proven in the future
what element is [Ar] 452 3010 5p5
Answer:
Argon
Explanation:
Argon is a chemical element with the symbol Ar and atomic number 18. It is in group 18 of the periodic table and is a noble gas
hope it helps!
4.imidazole has two nitrogen atoms, labeled as n3 and n1. please indicate which nitrogen is more basic. draw the products of protonating both nitrogen atoms and use this as part of your explanation.
[tex]N_3[/tex] is more basic than [tex]N_1[/tex] in imidazole.
Imidazole have two nitrogen attached in the ring at [tex]N_1 and N_3[/tex] .
This compound is an aromatic compound as it have [tex](4n+2)[/tex]π electrons which means lone pair electrons of [tex]N_1[/tex] nitrogen atom also takes part in π
system.
Thus when a proton attacks on this compound it easily attacks at [tex]N_3[/tex] rather than [tex]N_1[/tex].
After the attack of [tex]H^{+}[/tex] ion at [tex]N_3[/tex] the conjugate base thus formed is also aromatic and hence is more stable.
If the proton had attacked at [tex]N_1[/tex] the conjugate base would not be aromatic and its stability will decrease.
The reaction is shown in the image attached
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A chemical reactions is shown. How many different elements and total atoms are involved in the reaction?
Answer:
This question is incomplete
Explanation:
This question is incomplete. However, to determine the number of different element participating in a reaction, count the number of individual atoms participating the reaction. For example,
H₂SO₄ + 2NaOH ⇒ Na₂SO₄ + 2H₂O
The number of different elements involved in the reaction above are hydrogen (H), sulphur (S), oxygen (O) and sodium (Na). This means there are 4 different elements involved in the reaction.
But to determine the total number of atoms involved in a reaction, one must first ensured the reaction is balanced (because the number of each atom must be considered). Using the same reaction illustrated earlier hydrogen (H) has 2 atoms in H₂SO₄ and 2 atoms in NaOH, sulphur (S) has 1 atom in H₂SO₄, oxygen (O) has 4 atoms in H₂SO₄ and 2 atoms in NaOH and sodium (Na) has 2 atoms in NaOH. Thus, total number of atoms is 13 atoms.
Note that the number of atoms on the reactant side would be same as number of atoms on product side because of law of conservation of matter. Thus, participating atoms in the reaction is 13
a lever was used to lift a heavy rock the input force was 150 n and the output force was 500 n what was the mechanical advantage of the pulley
Answer:
Option A. 3.3
Explanation:
The following data were obtained from the question:
Input force = 150 N
Output force = 500 N
Mechanical advantage (MA) =.?
Mechanical advantage can be defined as force output divided by force input i.e
Mechanical advantage (MA) = force output / force input
With the above formula, we can obtain the mechanical advantage of the pulley as shown below:
Input force = 150 N
Output force = 500 N
Mechanical advantage (MA) =.?
MA = force output / force input
MA= 500/150
MA = 3.3
Thus, the mechanical advantage of the system is 3.3
Which type of orbital is shown?
Answer:
2px orbital...
Orbitals are represents the wave-like behavior of an electron or pair of electrons in an atom. Therefore it shows 2pX orbital.
What is orbitals ?
The four fundamental kinds of orbitals are s, p, d, and f. The spherical form of a s orbital can accommodate two electrons.
Each of the three p orbitals has the same fundamental structure but differs in its spatial orientation. Up to six electrons can fit into the p orbitals.
The s sublevel can only hold two electrons because it has one orbital. The p sublevel has three orbitals and a maximum capacity of six electrons.
The d sublevel may hold a maximum of 10 electrons due to its five orbitals. Additionally, the 4 sublevel has 7 orbitals and a maximum of 14 electrons.
Thus, it shows 2pX orbital.
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The formula of gypsum and that of plaster of parls are CaSO4.xH2O and CaSO4.yH2O respectively.
The difference x-y equals to;
1) 1
2) 3/2
3) 5/2
4) 1/2
Help me
Answer:
[tex]\frac{3}{2}[/tex]
Explanation:
Given formula of Gypsum:
CaSO₄. xH₂O,
True formula:
CaSO₄. 2H₂O, x = 2
Formula of plaster of paris = CaSO₄. [tex]\frac{1}{2}[/tex] H₂O,
y = [tex]\frac{1}{2}[/tex]
The difference between x and y; x - y:
x - y = 2 - [tex]\frac{1}{2}[/tex] = [tex]\frac{3}{2}[/tex]
Which element forms an ion that is larger than its atom
Answer:
Electronegative element form anion that is larger than its neutral atom like fluorine F-
Explanation:
Multi-Step Conversions (Always go through moles!)
Example: How many grams of water (H2O) will you need in order to have
3.22 x 1024 water molecules?
Mass of water needed : 96.3 g
Further explanationA mole is a number of particles(atoms, molecules, ions) in a substance
This refers to the atomic total of the 12 gr C-12 which is equal to 6.02.10²³, so 1 mole = 6.02.10²³ particles
Can be formulated :
N = n x No
N = number of particles
n = mol
No = 6.02.10²³ = Avogadro's number
moles H₂O=
[tex]\tt moles=\dfrac{N}{No}\\\\moles=\dfrac{3.22\times 10^{24}}{6.02\times 10^{23}}\\\\moles=5.35[/tex]
mass H₂O(MW=18 g/mol) :
[tex]\tt mass=moles\times MW\\\\mass=5.35\times 18\\\\mass=96.3~g[/tex]
how dose pendulum work
Answer:
Pendulum, body suspended from a fixed point so that it can swing back and forth under the influence of gravity. Pendulums are used to regulate the movement of clocks because the interval of time for each complete oscillation, called the period, is constant.
Explanation:
It is a simple tool which helps in balancing, healing and clearing our mind and body. They help us seek answers to certain questions by picking on subtle vibrations. They do so by moving in the direction of invisible energy around us.