Answer:
Cold air holds less water vapor than warm air. This is why warm climates are often more humid than cold ones: Water vapor remains in the air instead of condensing into rain. Cold climates are more likely to have rain, because water vapor condenses more easily there.
Explanation:
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What is the volume of 1.2 moles of neon gas at STP
Answer:
26.9 L.
Explanation:
Hello there!
In this case, since the ideal gas equation is able to provide us the volume of neon in 1.2 moles by considering the STP conditions (1.00 atm and 273.15 K) via its mathematical definition:
[tex]PV=nRT[/tex]
We first need to solve for V in the aforementioned equation:
[tex]V=\frac{nRT}{P}[/tex]
So we plug in to obtain:
[tex]V=\frac{1.2mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1.00atm}\\\\V=26.9L[/tex]
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Explain how electronegativity changes as one moves across the third period of the periodic table? 
why do gasses expand more than solid for the same increase in otemparature
solve this .......,..,.,.,..,.,,.,.,.,.,.,.,.,.,..,.,.,.,.z.,.,.,.,..,.,.,.,.,,.,.,.,
Answer: Molecular formula of copper (II) bromide is [tex]CuBr_2[/tex]
Molecular formula of aluminium (III) nitrate is [tex]Al(NO_3)_3[/tex]
Molecular formula of calcium (II) phosphate is [tex]Ca_3(PO_4)_2[/tex]
Molecular formula of iron (III) sulphide is [tex]Fe_2S_3[/tex]
Molecular formula of mercury (II) chloride is [tex]HgCl_2[/tex]
Molecular formula of magnesium (II) acetate is [tex](CH_3COO)_2Mg[/tex]
Explanation:
The name of the ionic compounds is written by writing the name of the cation first followed by its oxidation state in round brackets and then the name of the anion is written without any suffix. Thus the cation is written first followed by the oxidation state and then the anion.
For formation of a neutral ionic compound, the charges on cation and anion must be balanced. Thus they combine and their oxidation states are exchanged and written in simplest whole number ratios to give neutral compound.
Molecular formula of copper (II) bromide is [tex]CuBr_2[/tex]
Molecular formula of aluminium (III) nitrate is [tex]Al(NO_3)_3[/tex]
Molecular formula of calcium (II) phosphate is [tex]Ca_3(PO_4)_2[/tex]
Molecular formula of iron (III) sulphide is [tex]Fe_2S_3[/tex]
Molecular formula of mercury (II) chloride is [tex]HgCl_2[/tex]
Molecular formula of magnesium (II) acetate is [tex](CH_3COO)_2Mg[/tex]
pls help fast answer
Answer:
freezing
Explanation:
when objects are in liquid for, molecules are not moving as rapidly as when an object is in solid form
Answer:
evaporation :)
Explanation:
Copy and complete these equations plz I’ll give brainliest
Answer:
MgSO4 + 6H2O ----> MgSO4.6H2O
2C + O2 -----> 2CO
2CuO + C ------> 2Cu + CO2
C2H6 -----> C2H4 + H2
ZnO + C -----> Zn + CO
NiCO3 ------> NiO + CO2
CO2 + 2H2 ------> CH4 +O2
NaOH + HNO3 -----> NaNO3 + H2O
C2H6 --------> C2H4 + H2
Explanation:
If a radio station transmits on AM 610, how many hertz (Hz) is the frequency of the wave? (Remember that kHz = kilohertz.)
Answer:
610,000
Explanation:
When the radio station transmits on AM 610, so the number of hertz (Hz) is the frequency of the wave is 610,000.
Calculation of the number of hertz:Since radio station transmits on AM 610
We know that
1khz = 1000 hz
So it should be like
= 610 (1000)
= 610,000
hence, When the radio station transmits on AM 610, so the number of hertz (Hz) is the frequency of the wave is 610,000.
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Help me find the IUPAC names please
Answer:
1) 3- idomethyl benzene
2) 3,5 dibromo benzoic
3)4- chloro alanine
What is the number of nitrogen molecules that reacted with excess hydrogen to make 2x10^10 molecules of ammonia
According to stoichiometry and mole concept,1×10¹⁰ molecules reacted with excess hydrogen to make 2 x 10¹⁰ molecules of ammonia.
What is stoichiometry?Stoichiometry is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.
Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample.It is important while balancing chemical equations.
In the given example, as 1 molecule of nitrogen produces 2 molecules of ammonia
∴2 x 10¹⁰ molecules of ammonia will be produced when 2 x 10¹⁰×1/2=1×10¹⁰ molecules .
Thus, 1×10¹⁰ molecules reacted with excess hydrogen to make 2 x 10¹⁰ molecules of ammonia.
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What is the normal pH range of a Base?
Answer:
7.35 - 7.45
Explanation:
The pH scale ranges from 0 (strongly acidic) to 14 (strongly basic or alkaline). A pH of 7.0, in the middle of this scale, is neutral. Blood is normally slightly basic, with a normal pH range of about 7.35 to 7.45. Usually, the body maintains the pH of blood close to 7.40.
Hope this helps
Answer:
The normal pH range if a base is more than 7
Explanation:
Basideally the pH range goes from 0-14 in which
Acidic range is :0-7
Neutral :7
Base : 7 - 14
100 g of milk has the following composition:
4.7 g of carbohydrates, 5 g of minerals, 3.8 g of proteins, and 3.3 g of lipids.
1. Calculate the energy value in Kcal of 100 g of milk.
2. Deduce this energy in Kj.
3. Calculate the energy value in 225 g of milk.
Given:
lg of carbohydrate provides 3.75 Kcal.
ig of lipid provides 9 Kcal.
lg of protein provide 4 Kcal.
Answer:
Explanation:
SADOPOAKAWAASDASWDWSDWAA
Which rule concerning oxidation numbers is NOT true?
A. Fluorine always has an oxidation number of –1 in molecules that contain two or more types of atoms.
B. Oxygen has an oxidation number of –2 in molecules that contain two or more types of atoms.
C. If all else fails, assume that the atom’s oxidation number is the same as what it would take on in an ionic compound.
D. Reduction is the process by which an atom gains electrons.
E. Oxidation is the process by which an atom gains electrons.
Answer: no idea
Explanation:
By definition, the option E. is false: Oxidation is the process by which an atom loses electrons.
Oxidation is a reaction where an atom, ion or molecule loses electrons while reduction corresponds to the gain of electrons from an atom, ion or molecule.
Both oxidation and reduction depend on the change in the oxidation state of the atom, that is, on the difference in the charge of the atom in a reaction.
The oxidation and reduction reactions always occur simultaneously for what are generally known as oxidation-reduction reactions or redox reactions.
That is, reduction-oxidation reactions (also known as redox reaction) are electron transfer reactions. This transfer occurs between a set of chemical elements, one oxidizing and one reducing.
The reducer is that chemical element that tends to give electrons from its chemical structure to the environment, leaving it with a positive charge greater than the one it had.
The oxidant is the chemical element that tends to capture those electrons, leaving it with a lower positive charge than it had.
Finally, the option E. is false: Oxidation is the process by which an atom loses electrons.
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https://brainly.com/question/13699873?referrer=searchResultshttps://brainly.com/question/8493642?referrer=searchResultsAsphalt, like the desert, ___ the sun's energy, causing higher temperatures
A.absorbs
B.reflects
Answer: A. absorbs
Explanation:
The water vapor that condenses low to the ground and becomes visible is known as ___________.
Which of the following compounds are held together by ionic bonds? Select all that apply.
O A. CaCl2
OB. CH4
OC. Naci
D. sodium bromide
E. carbon dioxide
F. FeBr3
Answer:
Explanation:
All of above except carbon dioxide
The compound that is held together by ionic bonds are CaCl₂, NaCl, sodium bromide, and FeBr₃. The correct options are A, C, D, and F.
What are ionic bonds?Ionic bonds are electrovalent bonds. These bonds are formed when two or more atoms lose electrons or gain electrons to form an ion. Ions are opposite charges that attract each other. Ionic bonds are formed in both metals and non-metals.
CaCl₂, calcium chloride, is formed between metals and non-metals. Some more examples are NaOH – Sodium Hydroxide, NaHCO₃—Sodium Hydrogen Carbonate, etc.
An example is NaCl, is sodium has 11 atomic numbers. Chloride has 6 electrons in its outermost shell. They will share electrons with each other to make the noble gas configuration.
Thus, the correct options are A. CaCl₂, C. NaCl, D, sodium bromide, and F. FeBr₃.
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In the decomposition of iron(III) oxide, four moles of iron are produced for every two
moles of iron(III) oxide decomposed. If four moles of iron(III) oxide decompose, how
many moles of iron are produced?
Answer: 8 moles of Fe
Explanation:
If 2 moles oxide give 4 moles Fe, so 4 moles oxide gives 8
the number of particles of 0.2
mole
Answer:
There are 1.205x10²³ particles in 0.2 moles.
Explanation:
In order to convert from moles to number of particles we need to use Avogadro's number, which states the number of particles contained in 1 mol:
0.2 mol * 6.023x10²³ particles /mol = 1.205x10²³ particlesThus, there are 1.205x10²³ particles in 0.2 moles.
question is in picutree eee eee e e
Answer:
its is a or c I'm more confident in a though
Have you ever eaten a coin?
Answer:
yes
Explanation:
bc i wanted to know how they taste btw they taste like metal not good 5/10
might try again but not recommended
my favorite one is a quarter probably
Classify the following as either an anion or a cation.
Answer:Anion: CN-, CrO42-, CI-
Cation: H3O+, Cu+, C7H7+, Na+
Explanation:
how many atoms are in 1.7 mols of CHF3
Given :
Number of moles of CHF₃ is 1.7 .
Solution :
We know, 1 mole of any complex contains 6.022 × 10²³ molecules.
Let, 1.7 moles of CHF₃ contains n numbers of molecules.
So, n = 1.7 × 6.022 × 10²³ molecules
n = 10.2374 × 10²³ molecules
n = 1.0237 × 10²³ molecules
Hence, this is the required solution.
What is the mass number of an atom that has 35 electrons, 45
neutrons and 35 protons?
Answer:
Answer is 80
Explanation:
Mass number is equal to the number of protons + neutrons = 45 + 35 = 80
explain how liquid can enter the gas phase without reaching its boiling point
If 10.0g of oxygen reacts with 10.0g of hydrogen, how many grams of water can be
produced?
H2 + O2 ->
--> H2O
Answer:
the answer is 90g
Explanation:
2g of H2 produce 18g of H2O/10.0g of H2 to produce x the answer is 90g
I would like to get some examples of Newtons 1st,2nd, and 3rd Law
Answer:
Explanation:
Newtons 1st law:
If you slide a hockey puck on ice, eventually it will stop, because of friction on the ice. It might also stop if a hockey player places their stick in front of it.
Newton's 2nd law:
If the mass of an object is 20 kg and it's acceleration is 5 m/s, the force acting upon it is (m*a or 20*5) 100 N.
Another example that proves that force is dependent upon mass is that if you were to move a car and a truck (that were both previously stationary) at the same speed, the car would take less force/effort to move than the truck.
Newton's 3rd law:
If a book on a table, the table is exerting a force on it that is equal and opposite to the force of gravity.
If two soccer balls of the same mass collide, one moving and one stationary, then they would both apply an equal and opposite force onto each other, causing the moving ball to stop and the previously stationary ball to move at the speed of the previously moving ball.
there is no such thing as a universal solvent- explain? I’ll mark brainiest!!!
Answer:
A true universal solvent does not exist. Although water is considered to be a the "universal solvent" it only dissolves other polar molecules. It does not dissolve nonpolar molecules, including organic compounds such as fats and oils. It is only called so because it can dissolve many more than other liquids.
The diagram below shows the different phase transitions that occur in matter. Three bars are shown labeled Solid, Liquid, and Gas. They are connected by arrows labeled 1 to 6. Arrow 1 points from liquid to gas; arrow 2 from solid to liquid, arrow 3 from solid to gas, arrow 4 from gas to liquid, arrow 5 from liquid to solid, and arrow 6 from gas to solid. Which arrow would most likely represent the phase change that involves the same amount of energy as arrow 1? 2 3 4 5
Answer:
4
Explanation:
Got it right edge 2021
Answer:
4 or C
Explanation:
i took the quiz
What is the symbol for the following ion electronic structure: 1s^ 2 2s^ 2 2p^ 6 3s^ 2 3p^ 6 3d^ 10 4s^ 2 4p^ 6 4d^ 10 5s^ 2 with an atomic number of 50?
Answer:
Symbol is Sn
Explanation:
From the periodic table, the element that has an ionic number of 50 and electronic structure of 1s² 2s² 2p^(6) 3s² 3p^(6) 3d^(10) 4s² 4p^(6) 4d^(10) 5s² is known to be Tin.
The symbol for Tin is written as Sn
Answer:
The atomic number is 48 and Tin has an electron of 48 which means 2 electrons were donated during the chemical reaction.
The element is referred to as Tin(Sn) and the symbol is Sn²⁺
Tin is referred to as a metal . All metals lose or donate electrons to become positively charged because their outermost shells are usually very far from the nucleus.
On the other hand non metals accept or gain electrons to become negatively charged as their outermost shells are closer to the nucleus.
Tin however donated two electrons as a metal and became positively charged hence the symbol Sn²⁺
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How did Dmitri Mendeleev arrange the periodic law?
a. Each set of elements was arranged in special columns based on their mass.
b. Each set of elements was arranged in special columns based on their diameter.
c. Each set of elements was arranged in special periods based on their qualities.
d. Each set of elements was arranged in alphabetical order.
Answer:
a. Each set of elements was arranged in special coloumns based on their mass.
What does the 2 represent inH2
Answer:
dihydrogen monoxide. The 2 is the subscript for H symbolises the presence of 2 Hydrogen atoms.
Explanation:
Answer: If we want to represent two atoms of hydrogen, instead of writing H H, we write H2.
Explanation:
The subscript "2" means that two atoms of the element hydrogen have joined together to form a molecule. A subscript is only used when more than one atom is being represented. ... Some more common molecules and their chemical formula.