Answer:
If the molecules have similar molar masses and similar types of intermolecular forces, look for the one that is the most polar or that has the most electronegative atoms or the most hydrogen bonding groups. That one will have the strongest IMF's overall.
Explanation:
An experiment that would show that intramolecular forces are stronger than intermolecular forces will be heating a block of ice in a sealed container then allowing it to change to steam.
Intramolecular forces are the forces of attraction that hold atoms together within a molecule. Intramolecular forces require a high amount of energy to splits atoms or molecules in a chemical bonding.
Intermolecular forces are weaker forces of attraction that occur between molecules. They require lesser energy to splits molecules compared to intramolecular forces.
An experiment that show that intramolecular forces are stronger than intermolecular forces will be heating a block of ice in a sealed container then allowing it to change to steam.
In the process, the energy required to change the state from ice to steam water is more than intermolecular forces.
Thus, we can conclude that this experiment shows that the intramolecular forces are stronger than the intermolecular forces.
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Which of the following compounds will have the highest boiling point?
MgCl2
CO2
C12H22O12
,
H2O
what is an observation?
Answer:
the act of watching somebody/something carefully, especially to learn something
Explanation:
hope this helps you!
Answer:
hope this helps
Explanation:
noun
noun1.
noun1.the act of watching somebody/something carefully, especially to learn something
what do you think will happen to the kidneys if any of these parts were damaged?
Answer:
When your kidneys are damage waste products and fluid can build up in your body. That can cause swelling in your ankles nausea weakness poor sleep and shortness of breath. so without treatement the damage can get worse and your kidney may eventually stop working.Types of Reaction
A) Synthesis
B) Decomposition
C) Single displacement
D) Double displacement
E) Combustion
F - Synthesis
G - Single Displacement
H - Combustion
I - Double Displacement
Hope it helps :)
How many grams of iron are in 350 mg of iron? *
O A. 3.50 g
O B.0.350 g
O C.35.09
Answer:
It s B because 350 mg= 35.0cg=3.50dg=0.350
Answer:
its 0.350 letter B
Explanation:
im pretty sure you divide the mass value by 1000 to get you answer.
what is the relationship between electron affinity and atomic radius? why do you think this relationship occurs?
How do you convert particles to moles, and mass to moles?
1) 77.56 g of CaCO3 to moles
2) 2.55 x 10^24 molecules of KCl to grams
3) 0.0931 mol of BaCl2 to grams
4) 1.55 x 10^22 molecules to moles
5) 0.664 moles of HF to molecules
6) 86 g of Fe(NO3)3 to moles
7) 7.88 x 10^23 molecules of CO2 to grams
8) 2.93 moles of MgF2 to grams
9) 7.56 g of MgCO3 to moles
10) 8.55 x 10^21 molecules of NaCl to grams
1. mol = 77.56/100 = 0.7756 mol
2. mol = 2.55 × 10^24/6.02 × 10^23 = 4.236 mol mass = 4.236 × 74.5 = 315.582 g
3. mass = 0.0931 × 208.3 = 19.393 g
4. mol = 1.55 × 10^22/6.02 × 10^23 = 0.0257 mol
5. molecules = 0.664 × 6.02 × 10^23 = 3.997 × 10^23 molecules
6. mol = 86/242 = 0.355 mol
7. mol = 7.88 × 10^23/6.02 × 10^23 = 1.309 mol mass = 1.309 × 44 = 57.596 g
8. mass = 7.56 × 62 = 468.72 g
9. mol = 7.56/84 = 0.09 mol
10. mol = 8.55 × 10^21/6.02 × 10^23 = 0.014 mol mass = 0.014 × 58.5 = 0.819 g
recheck to ensure all answers are correct
True or false? In giant covalent structures the atoms form strong bonds by sharing electrons.
Answer:
True
Explanation:
its true don't lie on here please
In giant covalent structures such as graphite or diamond, the atoms form strong bonds by sharing electrons. Therefore, the given statement is true.
What is a covalent bond?A covalent bond can be defined as a chemical connection formed by the sharing of electron sets between particles. A covalent bond can be created by the mutual sharing of electrons from both atoms.
The pair of electrons that are shared in this kind of bonding is known as the shared or bonding pair. Covalent bonds are the sharing of bonding pairs of electrons that will provide the stability of the atom in its outer shell.
Elements that have very high ionization energies are incapable of exchanging electrons or elements having low electron affinity cannot accept electrons. Covalent bonding between two non-metallic atoms is characterized by the equal sharing of electrons between the atoms and covalent bonds with an electronegativity difference of participating atoms is more than 2.0.
Therefore, a giant structure like a diamond has strong covalent bonds that require a lot of energy to break.
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What does one mole of h20 correspond to
Answer:
One mole of H2O corresponds to 18 g .
Astatine-218 has a half-life of 1.6 seconds. If you begin with a 1.7 g sample of astatine-218, how much of the sample remains after 3.2 seconds?
Answer:
do you still need help on this question
Explanation:
Given the equation
N2(g) +3H2 (g)--> 2NH3 (g)
1 mole of N2 gas is needed to completely react with 3 moles of H2 gas.
How many molecules of H2 gas are needed?
Answer:
1.81 x [tex]10^{24}[/tex] molecules H2
Explanation:
Use Avogadro's number:
3 moles H2 x 6.022 x [tex]10^{23}[/tex] molecules= 1.81 x [tex]10^{24}[/tex] molecules H2
The boiling points of five liquids have been measured 10 times each by a team of scientists, with fairly consistent results. Which next step would be the most logical?
1. Test a sixth liquid to see if it follows patterns in the rest of the data.
2. Use a new thermometer to make sure that the original one was not faulty.
3. Continue collecting data until exact boiling points can be found.
4. Test the results an eleventh time, and average the new trial into the data.
Answer: Test a sixth liquid to see if it follows patterns in the rest of the data.
Explanation:
took the test
Temperature measures the average kinetic energy of particles of the substances. Therefore, the correct option is option A. Temperature is a physical quantity.
What is temperature?Temperature is used to measure degree or intensity of heat of a particular substance. Temperature is measured by an instrument called thermometer.
Temperature can be measured in degree Celsius °c, Kelvin k or in Fahrenheit. Heat always flow from higher temperature source to lower temperature source.
We can convert these units of temperature into one another. The relationship between degree Celsius and Fahrenheit can be expressed as:
°C={5(°F-32)}÷9
The boiling points of five liquids have been measured 10 times each by a team of scientists, with fairly consistent results. the next step would be to Test a sixth liquid to see if it follows patterns in the rest of the data.
Therefore, the correct option is option A.
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Name one of the elements that has similar properties with helium
neon and xenon are the elements that has similar properties to helium
Help please I don’t know what to do
determine the number of grams in 4.87 x 10^22 atoms of barium hydroxide Ba(OH)2'
(fence post model)
Answer:
hola espero que mi respuesta ayude
Explanation:
The concentration of hydroxide ion (-OH) in 1.37 x10^-5 m solution of Ba(OH)2 is calculated as follows
write the equation for dissociation of Ba(OH)2
Ba(OH)2 = Ba^2+(aq) + 2OH^-(aq)
by use of mole ratio between Ba(OH)2 to OH^- which is 1:2 the concentration of OH^- = 2x ( 1.37 x10^-5) = 2.74 x10^-5 M
As atoms get smaller,valance electrons are getting closer or farther away?
Answer:
valence electrons get closer but rest of them are remain same
Why is salt a mineral
4
Which statement about an ionic compound is not correct?
A It conducts electricity when dissolved in water.
B It has a high melting point due to strong attractive forces between ions.
с It has a regular lattice of oppositely charged ions in a 'sea of electrons'.
D The ionic bonds are formed between metallic and non-metallic elements.
Answer:
it conducts electricity when dissolved in water
Explanation:
the water molecules bond to positive and negative ions results to breaking of lattice and it's fixed position broken
*
Which of the following is a acid
нСІ
NaOH
Naci
KOH
Please help I only have until 11:59 to turn in this assignment and I don’t know what I’m doing
Answer:
The correct answer is option A, that is, HCl.
An acid refers to an ion or molecule possessing the tendency of donating a hydrogen ion or a proton, or alternatively, exhibiting a tendency of producing a covalent bond with a pair of electrons. The aqueous Arrhenius acids exhibit characteristic features that offer a practical illustration of an acid.
The acids can turn blue litmus paper red, can form aqueous solutions with a sour taste, and reacts with bases and some kind of metals to produce salts. One of the general aqueous acids is HCl (hydrochloric acid) that is found in the stomach and stimulates digestive enzymes.
Explanation:
Who has an aesthetic room
What is the enthalpy of combustion when 1 mol C6H6(g) completely reacts with oxygen? 2C6H6(g) 15O2(g) mc001-1. Jpg 12CO2(g) 6H2O(g) â€""6339 kJ/mol â€""3169 kJ/mol 1268 kJ/mol 6339 KJ/mol.
The enthalpy of combustion of 1 mole of benzene is 3169 kJ/mol .
The first step in answering this question is to obtain the balanced thermochemical equation of the reaction. The thermochemical equation shows the amount of heat lost or gained.
The thermochemical equation for the combustion of benzene is;
2 C6H6(l) + 15 O2(g) → 12 CO2(g) + 6 H2O(g) ΔrH° = -3169 kJ/mol
We can see that 1 mole of benzene releases about 3169 kJ/mol of heat.
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Answer:
-3169 kJ/mol
Explanation:
how many moles of oxygen molecule is reacting with sodium according to the following reaction:
2Na+O - Na2O2
1 mole of oxygen.
Answer:
solution given:
[tex]2Na+O_2=Na_2O_2\\2mole\:\: 1mole \:\: 1mole[/tex]
according to the above reaction,1 mole of oxygen is required to react with 2 moles of sodium to form sodium peroxide.
Explanation:
100 PIONTSSSS PLZ HELP
Draw the correct structural formula for the following molecules
Answer:
Explanation:
how do u draw on here
HELP ME PLEASE I NEED HELP SO BADLY
State the given:
Moles of Sulfur = 5 moles
Molar mass of Sulfur = 32.06g/mol
Look through the formulas:
Moles = Mass/Molar Mass
Rearrange the equation:
Mass = Moles x Molar mass
Plug in your given:
5 moles Sulfur x 32.06g
1 mol
= 160.3g of Sulfur
should i tell my parents i got C+ in chemistry or not ?
Which pair of elements are in the same period?Hg & PbLi & NaB & ClO & As
Answer:
Hg Pb are in one, Li and B and O are in one, and NaCl are in one, As is alone
Explanation:
Periods are horizontal
Hope this helps!
How many grams of ammonia are produced from 6 moles of nitrogen?
Which term describes a change that occurs with no new substances being formed?
A. Energy change
B. Bond change
C. Physical change
D. Chemical change
C. physical change
Explanation:
That's the answer
What pressure in atmospheres is equal to 45.6 K PA
Answer:
0.450037
Explanation:
Divide kPa by 101.325 as that is 1 atmospheric.
Hope that helps
Answer:
One atmosphere is equal to 101.33 kilopascal
So to change 45.6 kPa to atm, you would divide it by 101.33 kPa
[tex]\frac{45.6}{101.33} = 0.45 \ atm[/tex]
0.45 atmospheres
What do Cl-35 and Cl-36 have in common?
Answer:
they have same atomic number as they are the same element & electrons
Answer: they both have the atomic (proton number) as they are the same element hence they also they have the same number of electrons. Therefore they have similar chemical properties, as the electrons determine the chemical property of an element.
Explanation: The numbers 35 and 37 are the mass numbers for the two isotopes of chlorine. They both have the same atomic number (proton number ) as they are the same