Answer:
See explanation
Explanation:
To convert from atm to mmHg
1 atm = 760 mmHg
0.799 atm = 0.799 atm * 760 mmHg/1 atm = 607.24 mmHg
To convert from atm to torr
1 atm = 760 torr
0.799 atm = 0.799 atm * 760 torr/1 atm = 607.24 torr
A case of paper has a mass of 2000 g. A case of paper contains 10 reams of paper. One ream of paper is 500 sheets. What is the mass, in grams, of 50 sheets of paper?
Answer:
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Balancing chemical equation:
_Na+_MgF2—>_NaF+_Mg
Na= ? Na= ?
Mg= ? Mg= ?
F= ? F= ?
2Na + MgF2 → 2NaF + Mg
The diffusion of matter and energy in a liquid is slower than diffusion in a gas
True
O False
A tall plant (Tt) is crossed with a short plant (tt). What percent will be short?
Group of answer choices
75%
0%
100%
50%
25%
it should be 50/50 percent
so 50%
hopefully this is right !
how are three of the properties
Answer:
chemical weathering
physical weathering
biological weathering
Explanation:
biological weathering it when the plants grow the root move into the rocks to cause break down
In the reaction 2 FeBr3 + 3 Cl2 → 2 FeCl3 + 3 Br2, how many grams of bromine gas are produced from 2.50 moles of FeBr3?
Answer:
but iron is 2 and 3 by its valance how could it be possible
CaC2 + 2H2O ⟶ C2H2 + Ca(OH)2
How many moles of water are needed to produce 56.8g C2H2?
Amount of moles of water is 4.36 mol
Explanation: M(C2H2) = 2·12.01 + 2·1.008 = 26.036 g/mol
Amount of substance is n= m/M= 56.8 g / 26.036 g/mol= 2.18159 mol
Water is needed 2·2.18 mol = 4.36 mol
How many moles of ammonia gas can be formed from 14.0 L of hydrogen gas 300 K and a pressure of 2.0 atm
Answer:
n = 1.14 mol
Explanation:
Hello there!
In this case, according to the ideal gas law:
[tex]PV=nRT[/tex]
It is possible to solve for the moles of the gas given the volume, temperature and pressure:
[tex]n=\frac{PV}{RT}[/tex]
Thus, we plug in 14.0 L, 300 K and 2.0 atm to obtain:
[tex]n=\frac{2.0atm*14.0L}{0.08206\frac{atm*L}{mol*K}*300K}\\\\n=1.14mol[/tex]
Best regards!
What is the correct formula for the missing product from the equation below:
Na2CO3(aq)
+
CaCl2 (aq)
> NaCl +
Answer:
CaCO3 (s)
Explanation:
This equation is a double replacement equation, which means that since Na and Cl and paired, Ca and CO3 will be paired.
Then, you look at the charge of each element and balance
Ca has a 2+ charge
CO3 has a 2- charge
The 2+ charge and the 2- charge will cancel so there is no need for a subscript or to balance the equation
The complete equation will be Na2CO3 (aq) + CaCl2(aq) -> NaCl (aq) + CaCO3 (s)
I hope this helps and have a great day!
What is the name of this hydrocarbon?
Answer:In the given molecule the methyl group is attached at the second carbon atom of the parent chain. Therefore the name of hydrocarbon is 2-methylbutane.
Explanation:
Why do power plants emit such a high percentage of pollutants?
They burn fossil fuels, which releases huge amounts of sulfur dioxide and nitrogen oxide that pollute the air. ... Two thirds of all sulfur dioxide and more than one third of all nitrogen oxides that pollute the air.
Why do the more complex sugar disaccharides store more energy than
monosaccharides?
Answer:
Because Disaccharides have more chemical bonds.
Explanation:
Someone help please ...
Answer:
Yes
Explanation:
Which of the following statements is true about the molecule shown below?
Answer:
B. The bonds are polar and the molecule is nonpolar.
Explanation:
Each bond in the molecule is polar, as indicated by the partial charges on the atoms of the molecule. However, the four atoms are arranged symmetrically around the central atom. In this case, the effects of the partial charges on opposite sides cancel out. As a result, the molecule as a whole is nonpolar. If exposed to an electric field, the molecule will not orient itself in any particular direction.
Purpose Question:
If you have a headache, which medicine is the best choice to take?
Your choices are Aspirin, Tylenol or Ecotrin (coated aspirin)
Answer:
I will take Aspirin if I had a headache
heeeeeeeeeeeeeeelpheeeeeeeeeeeeeeelp
Answer:
the mirror forms a virtual inlarged image
Explanation:
two different people run a race the graphs track their distance vs. times during the race. Explain the difference between the two runners motions. use words like speed and acceleration.
Answer:
Runner A is moving at a constant speed, therefore has a positive acceleration.
Runner B is moving at a constant speed, stopping, then speeding up again.
Explanation:
The Earth's early atmosphere consisted of what
Which characteristic of a planet describes whether the planet has a thick or thin layer of gas?
Atmosphere
Moons
Rings
Surface composition
Answer:
Atmoshphere!
Explanation:
I took the test and got a 100%! :) Hope this helps, plz mark brainliest!
Give one example of
a) Homogeneous mixture of two elements
Answer:
honey
Coffee
blood
Explanation:
These components are uniformly distrubuted and these cannot be seperated unlike heterogeneous
Can someone help, please...?
I really can't understand this...
explain what is the difference between bohr and rutherford atomic models
Answer:
The Rutherford Model shows an atom with electrons orbiting a fixed, positively charged nucleus in set, predictable paths. The Bohr model shows electrons travel in defined circular orbits around the nucleus.
in today's pandemic,how can you protect our ozone depletion?
Answer:
if you want to protect our ozone depletion you have aerosol products that don't contain HCFCs and CFCs as stimulus or incitement
Explanation:
why you should use aerosol because when the liquid mixture is freeded or released from the aerosol the liquid propellant becomes a gas so this can easily break up the product into a fine haze or a mist hope its helpful have a good luck
2. Calculate the mass of Kool-Aid needed to make 0.1 L solutions at the following concentrations: a. 0.1 M b. 0.2 M c. 0.3 M d. 0.4 M e. 0.5 M
After reading that a solution is a homogeneous mixture, Hala wondered about her favorite
morning drink, grape juice. Which statement about the solution that makes up grape juice is
true? *
1Sugar is one of the solvents, and grapes are one of the solutes.
2Grapes are the solvent and water is one of the solutes.
3Water is the solvent, and sugar is one of the solutes.
4Sugar is the solvent, and water is one of the solutes.
Determine if the following would be a buffer system.
H3PO4 and NaH2PO4
H3PO4 and Na2HPO4
sorry i dont know Explanation:
What is the density of a book with a mass of 60g and a volume of 20 cm3? *
Answer:
[tex]3 g/cm^{3}[/tex]
Explanation:
Density is a measure of a substance's mass over its volume.
d = m/v
Therefore d = 60g/20cm3 = 3 g/cm3
Which statement correctly describes the relationship between air temperature and air pressure?
-Warm air rises, creating an area of low pressure.
-Cool air sinks, creating an area of low pressure.
-Warm air sinks, creating an area of low pressure.
-Cool air rises, creating an area of low pressure.
Answer:
-Warm air sinks, creating an area of low pressure.
Explanation:
Heat will weigh more, than cool air!
Please help will mark brainiest as well.!!
What is the chemical name for CO?
Answer:
Carbon monoxide, (CO), a highly toxic, colourless, odourless, flammable gas produced industrially for use in the manufacture of numerous organic and inorganic chemical products; it is also present in the exhaust gases of internal-combustion engines and furnaces as a result of incomplete conversion of carbon or carbon
Explanation:
Answer:
why joy deleting my answer
Explanation: