How does the disorder of a gas compare to that of a
liquid or solid?
Answer:The atoms in gases are far apart from each other, so they are much more disordered than either liquids or solids.
Explanation:
C3H8 +5O2→ 3 CO2 + 4 H2O
In the reaction above, what is the total number of moles of reactants consumed when 1.00 mole of CO2 is produced?
a
0.33 mol
b
2.00 mol
c
1.33 mol
d
1.50 mol
Answer:
1.33
Explanation:
sorry if im wrong :(
please answer it ??
Answer:
A is √34
Explanation:
We can solve for the hypotenuse "A" using the Pythagorean theorem.
a²+b²=c²
3²+5²=c²
9+25=c²
34=c²
√c=√34
c=√34 --> A
CH3F
How many total valence electrons?
Answer:14
explanation: For CH3F, we have a total of 14 valence electrons. Hydrogen always goes on the outside of Lewis structures. And then Carbon is less electronegative than Fluorine, so let's put the Carbon in the center and the Hydrogens on the outside there, and the Fluorine on the top. We have a total of 14 valence electrons for CH3F.
MORE HELP ILL GIVE BRAINLY if correct
In two or more complete sentences explain how to balance the chemical equation,
Ca + N2 ⟶ Ca3 + N2 and include all steps.
Answer:
ca +n2 is impossible to get trough a ca3 +n2 so you have to try to find a reasnable question like ca+n2 = ca3n2 then you need witch is the same but the chimacl blanice is off so when mixing the chimcals try to reduce the can2
but also try to make it be a better salution
Explanation:
hope that helps also good luck
Plz help! The best answer will be marked as brainliest!
Make a funny sentence for flammability and compounds for Magnesium
Here is an example for Mercury, it HAS to for Magnesium
“I love to travel but I do corrode aluminum so we won’t be flying off on adventures in airplanes planes anytime soon”
Answer:
I literally just answered this question
Explanation:
Give me a brainliest
Question 1 (1 point)
How many atoms are in 223 g of cesium?
Answer : The correct option is (b) [tex]1.01\times 10^{24}[/tex]
Explanation : Given,
Mass of cesium = 223 g
Molar mass of cesium = 133 g/mole
First we have to calculate the moles of cesium.
[tex]\text{Moles of cesium}=\frac{\text{Given mass cesium}}{\text{Molar mass cesium}}[/tex]
Now putting all the given values in this formula, we get:
[tex]\text{Moles of cesium}=\frac{223g}{133g/mol}=1.67mol[/tex]
Now we have to calculate the number of atoms of cesium.
As, 1 mole of cesium contains [tex]6.022\times 10^{23}[/tex] atoms of cesium
So, 1.67 mole of cesium contains [tex]1.67\times 6.022\times 10^{23}=1.01\times 10^{24}[/tex] atoms of cesium
Therefore, the number of atoms of cesium are [tex]1.01\times 10^{24}[/tex]
Dissolving salt in fresh water to make salt water is Chemical or Physicals
Answer:
chemical
Explanation:
i did that stuff in 5th grade
What is a gift offered to a god by killing or burning something? Plz answer I’ll give brainlist and 50 points for free
Answer:
it is a sacrafice to god so the spirtit can go free
Explanation:
Answer:
I believe it would be a sacrifice or a sacrificial ritual. hope this helped!! <3
6th grade help me pleaseee
Answer:
D hope this helps
Explanation:
Answer:
d. what will happen to the freezing point of the water if salt is added?
If carbon dioxide is an invisible gas, why do we see fog when dry ice sublimes?
Answer:
because it is going from a solid to a gas.
Explanation:
also it's still cold
True or false. The center of gravity and center of mass of an object need to be in the same spot?
True
False
Answer:
i think false
Explanation:
Centre of mass is the point at which the distribution of mass is equal in all directions, and does not depend on gravitational field. Centre of gravity is the point at which the distribution of weight is equal in all directions, and does depend on gravitational field
found it on google so it could be wrong
Answer:
True
Explanation:
I took a quiz and got it right
pls mark as brainliest.
Does acid rain make new substances?
Answer:
Over the past few decades, humans have released so many different chemicals into the air that they have changed the mix of gases in the atmosphere. ... In addition, the exhaust from cars, trucks, and buses releases nitrogen oxides and sulfur dioxide into the air.
How many atoms are in 0.075 mol of titanium?
O 4.5 x 1022
O 1.2 x 10-25
O 6.4 x 102
O 2.2 x 1024
Answer:
The answer is
4.5 × 10²²Explanation:
To find the number of atoms of titanium , given it's number of moles we use the formula
N = n × Lwhere n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
n = 0.075 mol
We have
N = 0.075 × 6.02 × 10²³
We have the final answer as
4.5 × 10²²Hope this helps you
Mention 5 uses of methane
Answer:
Used as rocket fuel, is a fertilizer ingredient, used in cooking, used to provide lighting, and used in production of other compounds
Explanation:
Hope this helps!!!
PLEASE HELP AND THANKS
Answer:
torque =force*distance
Which is the most polar molecule?
1. CF4
2. BF3
3. Ar
4. H2O
5. CO2
6. CH
The largest ruby in the world is 10.9 cm long, 9.10 cm wide, and 5.80 cm thick, giving it an overall volume of 575 cm3. If the density of ruby—a form of aluminum oxide—is 3.97 g/cm3, what is the mass of the largest ruby?
Given parameters:
Volume of the ruby = 575cm³
Density of the ruby = 3.97g/cm³
Unknown:
Mass of the largest ruby = ?
Solution:
Density is the mass per unit volume of a substance. It is an intrinsic property of matter that is unique to each of them.
Mathematically;
Density = [tex]\frac{mass}{volume}[/tex]
Since mass is the unknown;
Mass = density x volume
Input the parameters and solve;
Mass = 3.97 x 575 = 2282.75g
The mass of the largest ruby is 2282.75g
If you are calculating the grams to mL ratio, you are trying to find the object’s…
Answer:
Density
Explanation:
The ratio of mass to the volume of an object is called its density. Unit of mass is grams and that of volume is mL.
Density = mass/volume
[tex]\text{Density}=\dfrac{\text{grams}}{\text{mL}}\\\\=\text{grams/mL}[/tex]
If you are calculating the grams to mL ratio, it means that we are trying to find the object's density.
Weighted averages, help please
Answer:
Average atomic mass of Cl = 35.48 amu
Average atomic mass of B = 10.8 amu
Average atomic mass of Ag = 107.96 amu
Explanation:
1)
Given data:
Abundance of Cl-35 = 75.8%
Abundance of Cl-37 = 24.2%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (75.8×35)+(24.2×37) /100
Average atomic mass = 2653 + 895.4 / 100
Average atomic mass = 3548.4 / 100
Average atomic mass = 35.48 amu
2)
Given data:
Abundance of B-10 = 19.8%
Abundance of B-11 = 80.2%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (19.8×10)+(80.2×11) /100
Average atomic mass = 198 +882.2 / 100
Average atomic mass = 1080.2 / 100
Average atomic mass = 10.8 amu
3)
Given data:
Abundance of Ag-107 = 52%
Abundance of Ag-109 = 48%
Average atomic mass = ?
Solution:
Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass) / 100
Average atomic mass = (52×107)+(48×109) /100
Average atomic mass = 5564 +5232 / 100
Average atomic mass = 10796 / 100
Average atomic mass = 107.96 amu
PLEASE HELP ASAP!!
If an element has the atomic number of 13 and a mass number of 27, what
is that element?
-cobalt
-aluminum
-silicon
What is the last step in the scientific method?
A. Make an observation
B. Form a hypothesis
C. Test your hypothesis
D. Form a conclusion
Answer:
D
Explanation:
Because do all of that and then you do a conclusion
Which physical property of aluminum allows it to be formed into thin sheets?
O A. Electrical conductivity
O B. Thermal conductivity
O C. Malleability
O D. Density
Answer:
C. Malleability
Explanation:
The malleability of aluminum allows it to be formed into thin sheets.
Physical properties tells us about what a substance is when no change is occurring to its constituents.
Aluminum like some other metals can be drawn into sheets. This is due to the metallic bonds joining atoms of metals and alloys together. The physical properties of metals are due to metallic bonds. The metallic bond is actually the attraction between the positive nuclei of all closely packed atoms in the lattice and the electron cloud jointly formed by all the atoms by losing their outermost shell electrons.Answer:
C
Explanation:
Write the complete electron configurations with spaces between the sublevels. If you do not format correctly your answers will all be incorrect.
For example:
1a1 2b2 3c3 4d4
The ion configuration for an O-2 ion is (answer)
Answer:
O
2−
:
Explanation:
The atomic number of O=8=number of electrons
Number of electrons in O
2−
are 8+2=10
Electronic configuration will be 1s
2
2s
2
2p
6
Give two differences between the properties of iron and sodium
Answer:
Iron have 26 atomic and sodium have 11 atomic
Explanation:
The sodium is a non-transition metal. Its melting point is low and boiling points and is a soft metal, whereas iron is a transition metal with very high melting and boiling points, It is a hard metal.
What is transition metal ?The term transition metal is defined as any of various metallic elements such as chromium, iron, and nickel that have valence electrons in two shells instead of only one.
Between the s-block and p-block elements in the periodic table are transition metals. As a result, they are known as d-block elements.
Sodium is soft, has a much lower melting point than water, and reacts with it violently, producing heat and hydrogen or even exploding. Additionally, sodium and water react to create a hazardous compound.
Thus, these are difference between the properties of sodium and iron.
To learn more about transition element, follow the link;
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Four substances have the physical properties shown.
Which substance is an ionic solid?
melting point
1 °C
boiling point
1°C
electrical
conductivity
of solid
electrical
conductivity
of molten
substance
electrical
conductivity
of aqueous
solution
A
-115
-85
poor
poor
good
B
660
2470
good
good
insoluble
с
993
1695
poor
good
good
D
1610
2230
poor
poor
insoluble
Answer:
the answer is the location of the WORLD is the same as the answer to the answer
When the earth formed, do you think it was the way you see it now? Explain your answer.
Answer:
No
Explanation:
I do not know
Explanation:
No because when it was formed it was a rocky lava wasteland
How many electrons do carbon and oxygen share?
I-0-I
:0:
Intro
Done
oxygen has 6 valence electrons and 2 electrons and carbon has 4 electron
Answer:
4!!!!!!!!!!
Explanation:
i got it right
You have a rock with a a volume of 15cm3 and a mass of 45 g. What is its density
Answer:
3 g/cm3
Explanation:
d=m/v
=45/15
= 3 g/cm3
Answer:
2.46621 cm
Explanation:
i used the formula p = m/V
The people on this website are the only reason I'm passing!
N e ways, help?
A sample of oxygen gas at STP is depicted in the diagram in the picture (4) of the image attached.
What is an oxygen molecule?An oxygen molecule is a diatomic molecule, which is a molecule made up of just two atoms of the same element. The oxygen molecule in this instance is made up of two oxygen atoms.
If you have a lot of oxygen atoms at STP, they will spontaneously combine to produce O₂ because double bonds between oxygen atoms make their structure more stable.
If we carefully examine the figure in the attached image, we will see that it depicts a molecule made up of two atoms of the same element, which perfectly matches the definition of the oxygen molecule.
Therefore, this is shown in diagram (4), spontaneously combine to produce O₂ because double bonds between oxygen atoms make their structure more stable.
Learn more about molecules, here:
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