Answer:Re3(PO4)2 I think I'm wrong
Explanation:
How many moles are in 12 grams of NH3?
Answer:
molecular weight of NH3 or grams This compound is also known as Ammonia. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles NH3, or 17.03052 grams.
No. of moles present in 12 grams of NH₃ are 0.705 moles.
What is Avogadro’s number?
Avogadro's number is the number of units in one mole of any substance and equals to 6.02214076 × 10²³. The units can be electrons, atoms, ions, or molecules.
No. of moles is defined as a particular no. of particles that we can calculate with the help of Avogadro’s number.
Given,
Mass of NH₃ = 12g
one mole of any substance = 6.02214076 × 10²³
Molar mass NH₃ = 17g
17g NH₃ has = 1 mole
1g NH₃ has = (1÷17) moles
12g NH₃ has = 0.058 × 12 moles = 0.705 moles
Therefore, No. of moles present in 12 grams of NH₃ are 0.705 moles.
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The equation for the synthesis of ammonia is below. How many moles of H 2 are
needed to produce 9.33 moles of NH3?
EQUATION: N2 + H2 = NH3
Answer:
Using the proportions of the amount of the molecules, we can convert from any reagent or product to any other reagent or product. In the context of this reaction, for every mole of N2 and every 3 moles of H2 we obtain 2 moles of NH3.
Explanation:
Hydrogen is the limiting reactant. In other words, Hydrogen will run out before Nitrogen because it takes 3 mole of H2 and just 1 mole of N2 to make 2 mole NH3. What is the greatest amount of MgO (in moles) that can be made with 7.8 moles of Mg and 4.7 moles of
Can somebody plz help answer this short question in only 2-3 sentences..thanks :)
WILL MARK BRAINLIEST WHOEVER ANSWERSS FIRST!
Answer:
Here you go!
Explanation:
Electrons spin around the nucleus in shells. The protons and electrons of an atom are attracted to each other. They both carry an electrical charge.
Answer:
“Atoms are made up of smaller elements, called protons, electrons and neutrons. When electrical and magnetic forces move electrons from one atom to another, an electrical current is formed.”
Hopefully this helps you
0.33 g of hydrosulfuric acid, H25, is added to 50.0 mL of water. What is the concentration (molarity) of [H301 of this solution?
H25 --> 2H +52
2H+ + 2 H20 --> 2 H30* + 2 OH
[Do not include units in your answer]
The concentration (molarity) of [H₃O⁺]=0.776 M
Further explanationWe balance the reaction first so that the number of atoms and the charge of the product and reactant are the same
Reaction(balanced) :
H₂S⇒2H⁺+S²⁻ (eq 1)
2H⁺+6H₂O⇒4H₃O⁺+2OH⁻ (eq 2)
mass of H₂S=0.33 g
mol H₂S (MW=34 g/mol) :
[tex]\tt mol=\dfrac{0.33}{34}=0.0097[/tex]
From equation 1, mol H⁺ = 2 x mol H₂S , so mol H⁺ =
[tex]\tt 2\times 0.0097=0.0194[/tex]
From equation 2, mol H₃O⁺ = 2 x mol H⁺(4 : 2) , so mol H₃O⁺ :
[tex]\tt 2\times 0.0194=0.0388[/tex]
Or simply mol H₃O⁺ = 4 x mol H₂S = 4 x 0.0097 = 0.0388
the molarity of [H₃O⁺] =
[tex]\tt M=\dfrac{n}{V}=\dfrac{0.0388}{0.05~L(50~ml)}=0.776[/tex]
An _______________________ cannot be broken down into any other substance.
element
compound
mixture
solution
Answer:
Solution
Explanation:
Solution
Answer:
Element
Explanation:
An Element cannot be broken down into any other substance or anything smaller. A Element is the Smallest Known Substance in the World.
According to Webster's Dictionary states "Each of more than one hundred substances that cannot be chemically interconverted or broken down into simpler substances and are primary constituents of matter. Each element is distinguished by its atomic number, i.e. the number of protons in the nuclei of its atoms."
Can somebody plz help answer all these true and false questions CORRECT!!
WILL MARK BRAINLIEST :D
Answer:
1-T
2-F
3-T
4-T
Explanation:
big brain
why is an atom electrically neutral
How many atoms of Hydrogen are in the 3 molecules of glucose?
3C6H12O6?
Answer:
36 hydrogen atoms in 3 molecules of glucose
Explanation:
The formula for one molecule of glucose is C₆H₁₂O₆
There are 12 hydrogen atoms in one molecule so in three molecules there would be 36
Please answer I need this to get a good grade. (;
Answer:
94.74 mol NO₂
General Formulas and Concepts:
Chemistry - Stoichiometry
Using Dimensional AnalysisSTP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 KExplanation:
Step 1: Define
3714 L O₂ at STP
Step 2: Identify Conversions
RxN: 7 mol O₂ = 4 mol NO₂
STP: 22.4 L = 1 mol
Step 3: Stoichiometry
[tex]3714 \ L \ O_2(\frac{1 \ mol \ O_2}{22.4 \ L \ O_2} )(\frac{4 \ mol \ NO_2}{7 \ mol \ O_2} )[/tex] = 94.7449 mol NO₂
Step 4: Check
We are given 4 sig figs. Follow sig fig rules and round.
94.7449 mol NO₂ ≈ 94.74 mol NO₂
Find the unit rate for 306 mines in 10 hours
0.03 miles/hour
30.6 miles/hour
306 miles/hour
3,060 miles/hour
Ammonification is the formation of
How can convection in the mantle affect the positions of Earth's continents?
Answer:
Scientists believe that convection circulation within the mantle helps continents to move. As heat from Earth's innermost layer—the core—transfers to the bottom layer of mantle rock, the rock warms, softens, and rises upward. ... This churning motion in the mantle appears to be a major factor in plate movement.
Explanation:
you can estimate the degree to which bond between two atoms is ionic or cavelent by calculating the?
Answer:
difference in the atoms' electronegativites
Explanation:
hope this helps <333
Which statement is true of a
simple machine?
A. Simple machines are used to create friction.
B. Simple machines have many moving parts.
C. Simple machines are very basic and make
work easier.
D. Simple machines are always electrical.
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simple machines
A machine is a physical system that use power to exert forces, regulate movement, and carry out an activity. Simple machines are very basic and make work easier. This statement is true about simple machine. Therefore, option C is correct.
What is machine ?A machine is a physical system that use power to exert forces, regulate movement, and carry out an activity. The phrase is frequently used to describe both natural biological macromolecules, such as molecular machines, and man-made devices, such as those using engines or motors.
Any tool that simplifies work by adjusting a force is a machine. Every time a force pushes an item over a distance, work is done. Work = Force x Distance is an equation that measures the amount of work that is completed. You exert force on a machine when you operate it.
Simple machines are often used to lift big items with a pulley, to ride a bicycle, or to cut with a pair of scissors. It should be noted that a machine cannot be both a force multiplier and a speed multiplier.
Thus, option C is correct.
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Which of the following is a product formed when H2SO4 decomposes?
H2,
SO4,
H2S,
H2O
50 points in total i believe!
Why does chocolate melt when it gets warm?
Answer:
Because it is made of a hardened liquid that is extremely sensitive to heat
Explanation:
Brainliest?
HELP!!!!!! DUE IN 1 HOUR
What group is Fluorine in? What period is it in? How many energy levels will it have? How many electrons will be found in its outermost shell?
Answer:
Group 17, 2, 7, 7 electrons
Explanation:
Mole Conversion: how many moles are in 1.78 x 10^22 atoms of potassium
Answer:
Explanation:
This can most easily be done by using a proportional equation.
1 mol = 6.02 * 10^23 atoms
x mol = 1.78 * 10^22 atoms
1/x = 6.02 *10^23 / 1.78 * 10^22 Cross Multiply
1 * 1.78 * 10^22 = 6.02 * 10^23 x
x = 1.78 * 10^22 / 6.02 * 10^23
x = 0.029568 mols
This really ought to be 0.0296 mols
What is an atomic nucleus?
Answer:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford based on the 1909 Geiger–Marsden gold foil experiment. ... Protons and neutrons are bound together to form a nucleus by the nuclear force.
Explanation:
Answer:
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom
Explanation:
What type of chemical bonds share electrons between atoms?
Answer:
electrons
Explanation:
My question is on the image
Answer:
Top left: RR Top right: Rr Bottom left: Rr Bottom right: rr
Explanation:
if both parents are heterozygous then the table will always look like this. the chances of the offspring being heterozygous are 50%. the offspring has a 25% chance of having two recessive traits and a 25% chance of having two dominant traits.
How many total valence electrons are available for the Lewis Dot structure of H2S?
Answer:
8 Valence Electrons
Explanation:
There are 2 atoms of Hydrogen and 1 atom of Sulfur in the compound. Each Hydrogen atom has 1 electron (which is the valence electron).Sulfur has six valence electrons. Therefore, there is a total of eight valence electrons in H2S.What is kinetic energy related to?
Answer:
Kinetic energy is directly proportional to the mass of the object and to the square of its velocity: K.E. = 1/2 m v2.
Explanation:
i looked it up
Answer:
Kinetic energy, form of energy that an object or a particle has by reason of its motion. If work, which transfers energy, is done on an object by applying a net force, the object speeds up and thereby gains kinetic energy
Explanation: PRESS THE CROWN
Whats the equation and answer
Answer:
[tex]distance = speed \: \times time[/tex]
D = S × T
Explanation:
[tex]distance = 3.5 \times 5 \\ = 17.5 \: m[/tex]
Why is an ecosystem still healthy although there's still a lot of consumers in it?
Answer:
because it is a sign that there are more producers for the consumers.
Explanation:
An ecosystem consist of the abiotic or inorganic components, the animals[consumers], the plants[producers] and the decomposers. An ecosystem simply means the environment of organisms that are living together and the way these organisms interact with another.
The producers that is the plants are the ones manufacturing food by themselves either by photosynthesis or chemosynthesis and the consumers are the ones relying on the producers for food.
The ecosystem is still healthy even when there's still a lot of consumers in it because it shows that there are come producers that is to say the producers are more also. If this is not the case, then the ecosystem will not be healthy as the consumers will eat the producers until the producers will not be enough.
You leave gasoline in an open can and it vaporizes. What type of change is this?
Answer:evaporation
Explanation:
Will mark brainliest
Take your time to tell me what the answer is also please tell me how you know that is the answer and do not copy from the internet tell me how you know like I took the test or something like that I will mark Brainliest to the one who tells me correct answer and if no one has the right answer I will pick the first one who puts effort and or the first one !!!!
Studying energy involves determining the amount of energy an object has. This energy can be kinetic or potential, or it could be a combination of both. Consider a 2-kg bowling ball sits on top of a building that is 40 meters tall. It falls toward the ground. Think about the amounts kinetic energy the bowling ball has as it falls, select the when the ball would have the most kinetic energy from the choices given.
Question 1 options:
as it is just about to hit the ground from a fall off a building that is 40 meters tall and traveling 28 meters per second.
as it sits on top of a building that is 40 meters tall.
after it hits the ground and is no longer moving.
as it is half way through a fall off a building that is 40 meters tall and traveling 19.8 meters per second.
Thank you for your effort of helping me !will mark brainliest take your
Answer: l believe “as it is just about to hit the ground from a fall off a building that is 40 meters tall and traveling 28 meters per second.” is when the bowling ball will have the most kinetic energy because kinetic energy is all about energy that something has while it’s in motion and with the bowling ball traveling at 28 meters per second it has the greatest energy out of the rest of the options.
What is the difference between kinetic energy and
potential energy?
А
Potential energy is the energy of objects at rest; kinetic
energy is the energy of objects in motion.
B
Kinetic energy is the energy of objects at rest; potential
energy is the energy of objects in motion.
C
Potential energy has to do with chemistry; kinetic energy
has to do with physics.
D
Kinetic energy has to do with chemistry; potential
energy has to do with physics.
the answer is A: Potential energy is the energy of objects at rest; kinetic
energy is the energy of objects in motion.
Answer:
A
Explanation:
using your personal feelings to explain or describe is being..
Answer:
deep ............................
Answer:
( A Heart) fragile clueless of what love is then one day... somebody comes, somebody comes and you get a feeling a feeling of happiness a feeling of pure love not like any crush! Then one day... you lose them, you lose them and they are gone at first you feel cold like a piece of you just left the person that mad you feel this joy! You were just having another normal day but then you met then after that day you were happy but that one person! That one person made you So happy if you lost them you cant imagine how you could go what was life Before. so the second they leave it feels like your heart lost a piece that could only be filled with love! over the days your'e heart starts to feel numb and feel so lost you wonder and wonder. ( The heart)
Explanation
HELP CHEMISTRY ASAP !!!!!!!!! PICTURE IN HERE
Answer:
All of the above
Explanation:
^^^^^
