Answer: Rocks formed in this way include halite, gypsum, anhydrite, and some limestones. Layers of precipitated rocks are called evaporite deposits because they typically form where evaporation is high in arid regions like the desert southwest and in the eastern Mediterranean.
Explanation:
The three sedimentary rocks form from chemical precipitates and evaporites are halite, gypsum and anhydrite.
What are sedimentary rocks?Pre-existing rocks or bits of once-living animals constitute sedimentary rocks. They are formed by the accumulation of sediments on the Earth's surface.
Halite, gypsum, anhydrite, and various limestones are examples of such rocks. Evaporite deposits are layers of precipitated rocks that occur in arid locations like the desert southwest and the eastern Mediterranean where evaporation is considerable.
Hence three sedimentary rocks are Halite, gypsum and anhydrite.
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If an atom the atomic number 10 and the mass number 12, how many VALENCE electrons does it have?
Calcium carbonate decomposes into
calcium oxide and carbon dioxide.
The mass of calcium carbonate that
decomposes is 57 g. At the end of
the experiment, the mass of the
products were only 45 g. What can
we conclude from this information?
Answer:
The mass of carbon dioxide formed is 12g.
Which structure is found in producers in nearly all ecosystems?
A. stems
B. chloroplasts
C. leaves
D. rhizomes
Based on what you have read about wind turbines and dams, how does a generator work? A loop of Answer spins in a Answer field, producing Answer current. Item
Based on what you have read about wind turbines and dams, how does a generator work? A loop of ______ spins in a ______ field, producing ______ current.
Answer:
Wire
Magnetic
Electric
Explanation:
The generator works on the principle of converting mechanical energy into electrical energy.
For example in a wind turbine generator, the mechanical energy is the wind that pushes the blades of the turbine directly that leads to conversion of this it's linear motion to the rotary motion required to make rotor of the generator to spin. Finally, the harder the wind pushes, the more the mechanical energy applied and consequently, the more electrical energy can be generated.
Now, all generators work because of the effect of the magnetic field moving past an electrical coil.
Thus, the movement of a magnet across a single loop of wire produces a voltage that is induced within the wire loop as a result of the magnetic field produced by the magnet.
As a voltage is induced across the wire loop, electrons begin to flow around the loop thereby generating electric current.
please help i genuinely don’t know what to do
Please Help :))) "A solution with a concentration of 5.7 x 10^-7M would be considered..."
Answer:
The solution is acidic.
Explanation:
To know which option is correct, we shall determine the pH of the solution. This can be obtained as follow:
Concentration of Hydrogen ion [H⁺] = 5.7×10¯⁷ M
pH =?
pH = –Log [H⁺]
pH = –Log 5.7×10¯⁷
pH = 6.2
pH scale reads as follow:
0 to 6.9 => Acidic
7 => Neutral
8 to 14 => Alkaline / basic
The pH of the solution (i.e 6.2) falls between 0 and 6.9 which indicates acidic.
Therefore, the solution is acidic.
object with a mass of 30 kg is observed to accelerate at the rate of 4 m/s2. Calculate the force required
In which type of atom would radioactive decay most likely occur?
Group of answer choices
Radioactive decay will most likely occur in an atom with 26 protons.
Radioactive decay will most likely occur in atoms that have gained or lost electrons to form charged ions.
Radioactive decay will most likely occur in an atom that has more protons than electrons.
Radioactive decay will most likely occur in an atom with an unstable number of protons and neutrons in its nucleus.
Answer:
4
Explanation:
True or False: Once the formulas for the reactants and the products are determined, the subscripts may not be changed.
Answer:
true
Explanation:
tvyvyvtvtvtbbtbb
How many Hydrogen atoms are in the following compound (including the coefficient): 3(NH4)2CO3
Answer:
i believe it would be 12
Explanation:
because 3*4 is 12
During the chemical reaction given below 21.71 grams of each reagent were allowed to react. Determine how many grams of the excess reagent are left over after the reaction is complete. 2SO2()+O2()⟶2SO3()
Answer: 16.32 g of [tex]O_2[/tex] as excess reagent are left.
Explanation:
To calculate the moles :
[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]
[tex]\text{Moles of} SO_2=\frac{21.71g}{64g/mol}=0.34mol[/tex]
[tex]\text{Moles of} O_2=\frac{21.71g}{32g/mol}=0.68mol[/tex]
[tex]2SO_2(g)+O_2(g)\rightarrow 2SO_3(g)[/tex]
According to stoichiometry :
2 moles of [tex]SO_2[/tex] require = 1 mole of [tex]O_2[/tex]
Thus 0.34 moles of [tex]SO_2[/tex] will require=[tex]\frac{1}{2}\times 0.34=0.17moles[/tex] of [tex]O_2[/tex]
Thus [tex]SO_2[/tex] is the limiting reagent as it limits the formation of product and [tex]O_2[/tex] is the excess reagent.
Moles of [tex]O_2[/tex] left = (0.68-0.17) mol = 0.51 mol
Mass of [tex]O_2=moles\times {\text {Molar mass}}=0.51moles\times 32g/mol=16.32g[/tex]
Thus 16.32 g of [tex]O_2[/tex] as excess reagent are left.
Please help me with this homework
Answer:
Explanation:
Melting example:
Melting chocolate
Freezing example:
Freezing water to ice
Boiling example:
Water boiled in a kettle
Condensation example:
Steam from your bath/shower condenses onto the mirror
Hope this helps :)
In a polar bond, ____
are not shared equally between atoms.
Explanation:
Polar Covalent Bonds. A polar
covalent bond exists when
atoms with different
electronegativities share
electrons in a covalent bond.
Consider the hydrogen chloride
(HCI) molecule. Each atom in
HCI requires one more electron
to form an inert gas electron
configuration.
Can someone double check my work? (Ideal Gas Law Equation)
I am solving for the amount of moles in two gases.
For one, it was 4.75mL at 0.5C (273.65K) and 1.2atm.
n=(1.2*4.75)/(0.0821/273.65)=(5.7/22.456)=0.25361653 moles
For the other gas, it was 4.6mL at 0.5C and 1.2atm.
n=(1.2*4.6)/(0.0821/273.65)=(5.52/22.456)=0.24581403 moles
Please double check these for any errors in math or whatever. Thank you.
I did not see any errors, i may be wrong but what i can see is that it is correct
is it true or false?
Answer:
The rainforest is teeming with animals and insects, so you would hear humming. Frogs and birds make some of the loudest rainforest sounds.
howler monkeys, are the loudest so i think that its false cause lost of animals are there but some can be quiet
Which ion concentration does the pH scale measure? How long is the scale?
The wave pictured represents a sound wave. Which label along the wave represents a sound with the LOWEST energy?
A)
A
B)
B
o
C
D)
D
Answer:
21
Explanation:
sffbhvvfcycuxcydghcdeGf you've ydhgc yfyff ygg TX church Uruguay t vitrified
The wave which is having higher frequency is associated with higher energy. In the given wave, the part B is labelling the lowest energy sound.
What are sound waves ?Sound waves are longitudinal mechanical waves passing through a medium. In a longitudinal wave the oscillation of particles is in a direction along the wave propagation.
A sound wave is composed of rarefactions and compressions. The area where, the particles have some separation with lower pressure is called rarefactions.
The area of high pressure where, the oscillating particles are closely packed is called compression of the wave. As the frequency of the wave increases, its energy increases, Therefore, the less frequency part B represent lowest energy sound.
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Just help please
And does anybody know Johnny from NCT
Help on 2 and 3 due tomorrow pls help
Answer:
2
b= they are grouped differently, but all the atoms are still there.
A solute can be obtained from a solution by...
Answer:
Evaporating the solvent
Explanation:
Please help :)
It’s a science thing for 7th grade
Answer: The first question is chemical The second one is Physical
Explanation:
HELP ASAP !!! PLS ITS DUE IN LIKE 4 MINUTES
Answer:
they have the same structures in common
How many moles of ammonia, NH3, are in 51 grams of NH3?
Answer:
grams NH3 is equal to 0.058718113128665 mole.
Explanation:
Answer:
3 moles
Explanation:
Use the mole = mass/mr equation
so, mole = 51/17 = 3 moles
True or false: When adding acid to base the phenolphthalein indicator changes colour from colourless to pink at the end of the titration.
Answer: false
Explanation: I don’t know why but I just had this question and gussed false and I was right so false is therefore the right answer. Your welcome.
what is the mass number for an atom that has 36 protons 36 electrons and 40 neutrons
Answer:
76
Explanation:
Mass number = number of protons plus the number of neutrons
So, 36 + 40 = 76
What is defined as the plants and animals and the physical surroundings, including the sun, air, soil, and water?
Answer:
Ecosystem
Explanation:
The answer is ecosystem because the ecosystem includes the community such as living things and the enviornment of nonliving things such as the sun!
Answer:
ecosystem I'm pretty sure
How do you explain the ability of nonmetals to attract electrons to themselves?
Answer:
When these chemical bonds form, atoms of some elements have a greater ability to attract the valence electrons involved in the bond than other elements. Electronegativity is a measure of the ability of an atom to attract the electrons when the atom is part of a compound. Electronegativity differs from electron affinity because electron affinity
HOPE IT HELPS
Explanation:
Answer:
it is electronegativity and it increases as you move up and to the right on the periodic table and nonmetals are situated to the top right of the periodic table
Explanation:
4. A girl walked for 30 minutes. She noticed that she traveled farther in the first 15 minutes of
her walk than in the second 15 minutes,
What can she conclude about her walk?
A she walked over many hills
B
her average speed was faster during the first part of her walk
C. she walked in two different directions
D. she was walking at a constant speed
When a strontium atom loses two electrons to form an Sr2+ ion, the electrons are lost from the
a. 5s orbital. c. 3d orbital.
b. 5p orbital. d. 4f orbital.
Answer:When a strontium atom loses two electrons, it becomes a(n) cation with a charge of 2+. when any neutral atom loses an electron it becomes cation that is positively charged ions and an ion gets the charge according to the number of electrons loses.
you are very welcome but I may be inaccurate.
2. How will the equilibrium shift if the following changes are made? State if the reaction will shift
to the left or right and explain why it will shift in that direction.
PCl5 () + heat ⇌ PCl3 () + Cl2 ()
a. Temperature is increased
b. pressure is increased
Cl2 is added
d. PCl3 is removed as it is formed
3. How will the equilibrium shift if the following changes are made? State if the reaction will shift
to the left or right and explain why it will shift in that direction. (10 points each. 5 points for
correct answer, 5 points for correct explanation)
H2 () + Cl2 () ⇌ 2HCl() + heat
a. Heat is removed
b.Cl2 is added
d. PCl3 is removed as it is formed
3. How will the equilibrium shift if the following changes are made? State if the reaction will shift
to the left or right and explain why it will shift in that direction.
H2 () + Cl2 () ⇌ 2HCl() + heat
a. Heat is removed
b.HCl is added
c. H2 is added
d. Pressure is decreased
Use the reaction below to answer the following questions.
2NO2 ()⇌N2O4 ()
a. What is the expression for the equilibrium constant, Keq, for the reaction?
b. If there are 0.400 moles of N2O4 and 0.500 moles of NO2 in a 1.00 L flask at equilibrium at 20°C, what is the Keq?
Please give me brainleist. :)
Answer:
2a. If the temperature is increased, the reaction will shift to the right in an attempt to release some of the heat. As the forward reaction loses heat while the reverse would create more heat.
2b. If the pressure is increased, it would shift to the left to counteract the increase in pressure as the left side will have fewer molecules.
2c. If Cl2 is added the reaction will shift to the left in order to remove the stress of the extra Cl2 and favor the production of more reactant.
2d. If PCl3 is removed, the reaction will shift to the right. When part of the equation is removed the reaction learns to adapt to the loss by trying to make more Pcl3 and counteract the effects of losing the PCl3.
3a. The reaction will shift to the right to produce more heat and counter the negative effects of losing the heat.
3b. It will shift to the left to get rid of the excess HCl being produced and form more reactant from the breakdown of the HCl.
3c. It would shift to the right in order to get rid of the excess form products from it.
3d. If pressure is decreased there will be no effect on the shift of the reaction because there is an even amount of moles of gas on each side.
4a. K=[N2O4(g0] / [NO2(g)]2
4b. (Below)
K=[N2O4(g)] / [NO2(g)]2
0.4 / 0.5(2)
0.4/0.25 = 1.6
Keq= 1.6