Answer:
Iconic bond
Explanation:
A form of chemical bond that included electrostatic attraction in the oppositely charged ions. It is one of the main types of bonding along with the covalent and metallic bonding. The substance is crystalline in nature since it melts easily and is solid at room temperature.Is sweat a chemical? I am curious to know! NO LINKS OR TROLLS
Answer:
no
Explanation:
stop troll hate
HELPPPPP ASAP PLSSSS !!!!!!!!!
Answer:
maybe i can help for you where the question
how do you find a mole (i need an example) i hate chem pls help
Answer:
I'm pretty sure its just the mass of the sample divided by the molar mass
for example if I had like 7g of carbon and wanted to find the moles, I would divide the mass I have (7g) by the molar mass (the atomic mass value on your periodic table, in this case for carbon it would be 14g)
moles = [tex]\frac{mass}{molarmass} = \frac{7}{14} = 0.5\ moles[/tex]
Hope this helped
What is the mass of 1.25 x [tex]10^{24}[/tex] atoms of nitrogen?
Answer:
i dont know
Explanation:
trolololololololololololololololol
How many aluminum atoms are in 4.18 g of aluminum?
Answer:
i believe its 91
Explanation:
All atoms of an element are______.
Points: 87
Answer:
Alike
Explanation:
True or False: Passive transport occurs when molecules move from an area of low concentration to high concentration.
give me a answer!!!!!!!!!!!!!!!
Answer: i did the ones i knew
1. thorns
2. smell
6. long roots
8. smell
9. thorns
Explanation:
What is the mass of 0. 513 mol Al2O3? Give your answer to the correct number of significant figures. (Molar mass of Al2O3 = 102. 0 g/mol) 0. 513 mol Al2O3 = g Al2O3.
The mass of a 0.513 mol of Al2O3 is 52.33g.
HOW TO CALCULATE MASS:
The mass of a substance can be calculated by multiplying the molar mass of the substance by its number of moles. That is;
mass of Al2O3 = no. of moles of Al2O3 × molar mass of Al2O3
According to this question, there are 0.513 moles of Al2O3.
Mass of Al2O3 = 0.513 × 102
Mass of Al2O3 = 52.33g
Therefore, the mass of a 0.513 mol of Al2O3 is 52.33g.
Learn more about mass calculations at: https://brainly.com/question/8101390?referrer=searchResults
Calculate the number of moles in 1.622 grams of boron.
Answer:
0.147
Explanation:
Moles equals mass over AR/MR so 1.662 over 11 gives 0.147
How many oxygen atoms
in a molecule of table sugar (C12H22011)?
ОА 45
ООО
В. 22
с 12
Op. 11
SUBMIT
Answer:
6.6242 x 10 ^ 24
Explanation:
This is the correct answer because you know there is 11 oxygen moles in 1 mole of sugar so using dimensional analysis you can solve it. You start will 11 moles of oxygen, and multiply by Avogadro's number(6.022 x 10 ^23) to get the amount of atoms. I don't see it as an answer, but I am confident in this, so I would ask your teacher specifically.
Hope this helps!
what is the name of the compound whose formula is n,i,2o?
Answer:
Explanation:
Dinitrogen pentaoxide is a nitrogen oxide.
...
3.1Computed Properties.
Property Name Property Value Reference
Formal Charge 0 Computed by PubChem
Answer the following;
Pls helppp
Answer:
The answer is A
Explanation:
Answer:
D)All of the above
.The 1" row of the periodic table has which two elements?
On the periodic table, hydrogen and helium are the only two elements in the first row, or period, which reflects that they only have electrons in their first shell. Hydrogen and helium are the only two elements that have electrons exclusively in the 1 s 1s 1s orbital in their neutral, non-charged, state.
A sample of gas occupies 20 mL at -109 degree C. What volume does the sample
occupy at 65 °C?
Answer: V2= 41.2mL
Explanation:
Givens:
* V1= 20ml
* T1 = -109 ⁰C --> K= ⁰C + 273.15 --> 164.15 K
* V2 = ??
* T2= 338.15 K
Use Charles law V1/T1 = V2/T2
Since we are looking for V2 we can rearrange the formula to
V2= (T2 x V1) /T1
V2= (338.15K x 20mL) / 164.15 K
V2= 41.2mL
NOTE:
Temperature should always be in K not in ⁰C or ⁰F
To convert from C to K use
*K= ⁰C + 273.15
Enter your C value in the ( ⁰C ) and you can get K
As you go down group one of the periodic table, the reactions become and more
Answer:
vigorous
Explanation:
As you go down group one of the periodic table, the reactions become and more vigorous.
What does the answer of element 3Na2S2O3?
Answer:
Explanation:
3× 22+2×32+ 6×16=
66+64+96=236
Which of the following is true for a nuclear reaction?
O Electrons are lost
Electrons are gained
O Identity of element changes
Oldentity of element remains same
True statement for a nuclear reactions is that it changes the identity of the element.
What are nuclear reactions?Nuclear reactions are those reactions in which changes in the nucleus of atoms take place in the form of fission and fussion.
As it is said that changes are taking place in nucleus so the electrons are not gained or lost in this reactions.Identity of the element changes as atomic number of element changes due to change in the number of protons.Hence identity of element changes.
To know more about nuclear reactions, visit the below link:
https://brainly.com/question/984564
A sample of a compound contains 1.65 × 10²³ atoms of C, 0.552g of H, and 4.39g of O. What is the molecular formula and molar mass of the compound?
Answer:
C1 H2 O16
Explanation:
Pls some one help
1 mark question
Answer:
See below
Explanation:
Helium belongs to group VIII of the periodic table "Noble gases". It has only 1 electronic shell and that too contains 2 electrons according to the accommodation of the shell. Hence, it's electronic shell is complete. This is the reason, Helium is chemically unreactive.
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Desperate Please Hurry
What was the evidence that Earth was round before there were photos from space?
Answer:
Explanation:
Are there any awnser choices?
Can anyone pls answerrrrt
Answer:
wdym
Explanation:
hmm
1. what property of gas does not change?
2. Name two gases besides oxygen found in Earth's atmosphere
Answer:
hydrogen and nitrogen or something?
Explanation:
Answer:
nitrogin and i forgot the other one srry!!
Explanation:
Why are unbalanced equations NOT useful in
chemistry?
Answer:
If the numbers of each type of atom are different on the two sides of a chemical equationExplanation:
7. Balance the following reaction under basic conditions: Al (s) + Cr2O72- (aq) -> Al3+ (aq) + Cr3+ (aq)
8. What is the ^o of the following balanced redox reaction (use the reduction potentials provided in Table 11.1
below)?
Fe3+ (aq) + Au (s) -> Fe (s) + Au3+ (aq)
9. What is G for the reaction below – calculate it from the ^o ?
Fe (s) + Au3+ (aq) -> Fe3+ (aq) + Au (s)
The free energy change of the reaction; Fe (s) + Au3+ (aq) -> Fe3+ (aq) + Au (s) is calculated to be -443.83KJ/mol.
For the reaction shown in question 7, we can divide it into half equations as follows;
Oxidation half equation;
6 Al (s) -------> 6Al^3+(aq) + 18e
Reduction half equation;
3Cr2O7^2-(aq) + 42H^+(aq) + 18e -----> 6Cr^3+(aq) + 21H2O(l)
The balanced reaction equation is;
6Al(s) + 3Cr2O7^2-(aq) + 42H^+(aq) -----> 6Al^3+(aq) + 6Cr^3+(aq) + 21H2O(l)
The E° of this reaction is obtained from;
E° anode = -0.04 V
E°cathode = +1.50 V
E° cell = +1.50 V - (-0.04 V) = 1.54 V
Given that;
ΔG° = -nFE°cell
n = 3, F = 96500, E°cell = 1.54 V
ΔG° = -(3 × 96500 × 1.54)
ΔG° = -443.83KJ/mol
Learn more: https://brainly.com/question/967776
1. How many centimeters are in 13.4 inches?
34.036 Thats how many
Answer:
34.036
Explanation:
There are 2.54 centimeters in one inch so you multiply 13.4 and 2.54 to get 34.036.
How can you find each of the 4 blood vessels when dissecting?
Answer:
that's a weird question
Explanation:
why do you need to know that?
What is the minimum uncertainty in a simultaneous measurement of the y-component of the proton's velocity?.
Answer: c
Explanation:
what is the strongest interparticle force in a sample of so2?
Answer:
The strongest intermolecular force in sulfur dioxide is dipole-dipole forces.
Explanation:
The interparticle force in [tex]SO_{2}[/tex] (sulfur dioxide) is the dipole-dipole interaction.
What is dipole-dipole interaction?
Dipole-dipole interaction is a type of intermolecular force that occurs between polar molecules. Polar molecules have a permanent dipole moment, which means they have a partial positive charge on one end and a partial negative charge on the other end. This creates an electrostatic attraction between the partial charges of neighboring molecules. The stronger the dipole moment of a molecule, the stronger its dipole-dipole interaction will be with other polar molecules.
Dipole-dipole interactions are responsible for a variety of physical properties of substances, including their boiling and melting points. Substances with strong dipole-dipole interactions tend to have higher boiling and melting points than substances with weaker interactions. In addition, the strength of dipole-dipole interactions can affect solubility, as polar substances tend to dissolve better in other polar substances due to their ability to form dipole-dipole interactions.
Learn more about dipole-dipole interaction, here:
https://brainly.com/question/30510859
#SPJ2
When magnesium ium is left in moist air for several hours, the metal Sur face taanishes?why
Answer:
due to the formation of an oxide or hydroxide layer
Explanation:
magnesium is a reactive metal...when left in air it reacts with oxygen to form an oxide layer of MgO and it can react with moisture to form Mg(OH)2 LAYER ON THE SURFACE.
