Please help! At a pressure of 200 atm, water’s melting point is approximately _____ (-2 C, 0 C, 10 C, or 370 C) and its boiling point is approximately ____ (370 C, 10 C, 0 C, -2 C)
Answers
At a pressure of 200 atm, water’s melting point is approximately 0⁰C and its boiling point is approximately 370⁰C.
What is melting point temperature?Melting point is the temperature at which a substance changes into liquid form.
From the chart, at a pressure of 200 atm, water’s melting point is approximately 0⁰C.
What is boiling point temperature?This is the temperature at which a liquid turns into a vapor. It is the temperature at which liquid and vapor co-exist.
From the chart, at a pressure of 200 atm, water’s boiling point is approximately 370⁰C.
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Related Questions
What is the mass of 11.5 moles of lithium
Answers
Answer:
1 moles =6.9g
11.5moles= x
then we have x=79.35g
What is a chemical equation? What does it tell you?
Answers
Answer:
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulas.
Mechanism of cell destruction of Poison oak
Answers
Poison oak (Toxicodendron diversilobum) and its eastern counterpart poison ivy (T. radicans) are two of the most notoriously painful plants in North America. The mechanism is similar to poison oak because it causes the body's immune system to destroy cancerous skin cells.
(1) it takes 40 ml of a 0.25 m naoh solution to neutralize 100 ml of an hcl solution. what is the concentration of the hcl solution?
Answers
Answer:
0.1M
Explanation:
Using Neutralisation formula,
MaVa=MbVb
>>(0.25)(40)=Mb(100)
Mb=0.1M
ICE
OC
TINITIAL
37°C
MWATER
231g
Heat will flow from the warm water into the 0° C ice.
Energy will flow until all of the ice has become water
and has the same temperature as the original warm
water, Tfinal. The amount of energy the warm water lost
(which is equal to the amount of energy the ice gained
in order to melt) can be calculated by the equation we
learned last week.
MICE +
MWATER
2.65 4
-22.5°C
TFINAL
AELost = MWATER * SH WATER (TINITIAL -TFINAL)
Х
Once you make this calculation you will have the
amount of energy that is needed to melt your total
mass of ice, so just divide it by the mass of ice you
melted and you will have the heat of fusion of ice
(Hfus for H,O) in Joules per gram of ice. Remember to
repeat the experiment at least one more time using a
different amount of water, a different amount of ice, and
.
Answers
Answer:
Suppose that several objects composed of different materials are heated in the same manner. Will the objects warm up at equal rates? The answer: most likely not. Different materials would warm up at different rates because each material has its own specific heat capacity. The specific heat capacity refers to the amount of heat required to cause a unit of mass (say a gram or a kilogram) to change its temperature by 1°C. Specific heat capacities of various materials are often listed in textbooks. Standard metric units are Joules/kilogram/Kelvin (J/kg/K). More commonly used units are J/g/°C. Use the widget below to view specific heat capacities of various materials. Simply type in the name of a substance (aluminum, iron, copper, water, methanol, wood, etc.) and click on the Submit button; results will be displayed in a separate window.
Explanation:
how many moles of HCI in 72 gm?
Answers
molecular mass of H=1.0
molecular mass of Cl=35.5
add them up : M(HCl)=36.5
n=72/36.5
One form of energy can transform into another form of energy.
17 Energy in a flashlight's battery changes from ________ energy to electrical energy.
Answers
Answer:
Chemical
Explanation:
Chemical energy is stored in the batteries of a flash light. When the flashlight is used, the Chemical energy that was stored, is then used to make Electrical energy for the flashlight. Then electrical energy is converted to heat in the filament of the flashlight bulb. Some of the heat is lost to the surroundings, and some is converted into light energy.
What reactant concentrations, pressure and temperature conditions would favor the production of the substance that is underlined in each of the following equations. Make sure you address all three of the factors listed above for each equilibrium.
a) 2CO(g) + O2(g) <--> 2CO2 (g) + 167 kJ
b) Cu2+(aq) + 4NH3(aq) <--> Cu(NH3)42+(aq) + 42 kJ
c) 2HI(g) + 12.6 kJ <--> H2(g) + I2(g)
d) 4HCl(g) + O2(g) <--> 2H2O(g) + 2Cl2(g) + 113 kJ
e) PCl5(g) + 88 kJ <--> PCl3(g) + Cl2(g)
Answers
Answer:
a) Increase the pressure, Increase the reactants, Decrease the temperature
b) No effect on pressure, Increase the reactants, Decrease the temperature
c) No effect on pressure, Increase the reactants, Increase the temperature
d) No effect on pressure, Increase the reactants, Decrease the temperature
e) Decrease the pressure, Increase the reactants, Increase the temperature
I had to look up the questions online because you did not underline them properly, but yeah these should be the respective conditions for each equation
Increasing pressure shifts equilibrium to the side with the least amount of gas moles, decreasing pressure does the opposite
Increasing Reactants will cause more products to be made
Increasing temperature in an endothermic reaction will shift equilibrium to the right, and in the opposite direction if the reaction is exothermic (left)
Decreasing temperature in an endothermic reaction will shift equilibrium to the left, and in the opposite direction if the reaction is exothermic (right)
Consider the following statistic. As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 years of operating 104 nuclear power plants. On average, how much waste is produced by each plant on a monthly basis? 0. 8 tons per month 83. 3 tons per month 104 tons per month 866. 3 tons per month.
Answers
Answer: A
Explanation:
short paragraph about volcano and its features.
Answers
ABOUT VOLCANO
A volcano is am opening in the earth’s crust through which lava, volcanic ash, and gases escape. Volcanic eruptions are partly driven by pressure from dissolved gas, much as escaping gases force the cork out of a bottle of champagne. Beneath a volcano, liquid magma containing dissolved gases rises through cracks in the Earth’s crust. As the magma rises, pressure decreases, allowing the gases to form bubbles. How the magma (lava) behaves when it reaches the surface depends on both its gas content and chemical composition. Lavas with low silica contents have low viscosities and flow freely, allowing any gas bubbles to escape readily, while lavas with high silica contents are more viscous (resistant to flow), so that any trapped gases cannot escape gradually
FEATURES OF VOLCANO
The main features of a volcano include the magma chamber, vents, craters and slopes. The diagram below shows the main features of a volcano. The magma chamber is a large underground pool of magma. Under pressure, the magma in the chamber can rise up the main vent, which is the central tube through the volcano.
Which of these statements is false? The least reactive elements are in the far right column. Elements at the bottom of a column have more protons than elements at the top of a column. Elements on the left side of a row always have higher atomic mass than elements on the right side of that row. Elements along the steplike line have some properties of metals and some properties of nonmetals.
Answers
Answer:
Elements on the left side of a row always have higher atomic mass than elements on the right side of that row.
Explanation:
the answer I have above should be correct because it’s false so it’s the right answer.
Why do some cells make food molecules?
Answers
Answer:
All living cells release energy from food molecules through cellular breathing and/or fermentation. Some cells make food molecules using light energy through the process of (making food from light).
Making food from light- Photosynthesis
Breathing- Respiration
All living units give out power for a given time from food small complex units through formed of small units breathing and or fermentation. Some units make food small complex units using light power for a given time through the process of (making food from light).
What are some reasonable safety precautions for conducting field investigations
in polar climates?
Answers
Answer:
warm clothing hiking sticks safter gear. food water. the basics
Which salt is produced when sulfuric acid and calcium hydroxide react completely.
Answers
Answer:
calcium sulphate and water
Suppose a particular electron has only two allowed energy levels. How many different wavelength photons (spectral lines) would result from all electron 3 transitions between these levels
Answers
Energy levels are the fixed places from the nucleus to the electrons of the atoms. Three possible wavelength photons are possible from the transitional levels.
What are spectral lines?Spectral lines are the dark or light uniform spectrum caused by the surplus or insufficient photons in the atom. They absorb and emit light in a certain frequency range.
Photons are transmitted from one energy level to another level of lower energy, three transitions from levels 1 - 2, 1 - 3, and 2 - 3 are possible.
Therefore, 3 spectral lines are possible.
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NEED HELP ASAP!
What is the frequency of a wave that has a wavelength of 28m? Remember that c = 2.998 x 10^8 m/s
A.) 10 Hz
B.) 1.07 x 10^7 Hz
C.) 10.7 Hz
D.) 2.3 x 10^7 Hz
Answers
Answer:
Frequency = Speed/wavelength
Frequency = 2.998 x 10^8 m/s ÷ 28m
Frequency = 1.07 x 10^7 Hz
Short Essay!
Explain how scientists have used the concept of metallic bonding to account for many of the physical properties of metalssuch as electrical conductivity and malleability .
PLS HELP!!
Answers
Answer:
Explanation:
Because electrons are delocalized around positively charged nuclei, metallic bonding explains many properties of metals. Electrical conductivity: Most metals are excellent electrical conductors because the electrons in the electron sea are free to move and carry charge.
find the iupac name for this question
Answers
Answer:
3 - Methylpent-2-yn-1-ol
If I have 340 mL of a 1.5 M NaBr solution, what will the concentration be if I add 560 mL more water to it?
Answers
Answer:
0.5667 M ≅ 0.57 M.
Explanation:
It is known that the no. of millimoles of a solution before dilution is equal to the no. of millimoles of the solution after the dilution.
It can be expressed as:
(MV) before dilution = (MV) after dilution.
M before dilution = 1.5 M, V before dilution = 340 mL.
M after dilution = ??? M, V after dilution = 340 mL + 560 mL = 900 mL.
∴ M after dilution = (MV) before dilution/(V) after dilution = (1.5 M)(340 mL)/(900 mL) = 0.5667 M ≅ 0.57 M.
Classify: Heat that is transferred in a circular motion with warm particles rising and cool
particles sinking in a gas and liquid is called____
Convection
Conduction
Radiation
Answers
hello bro please set instar
What are some differences between pure substances and mixtures?
Answers
Answer:
. a pure substance consists only of one element or one compound.
. a mixture consists of two or more different substances, not chemically joined together
3. related to the amount of energy a wave carries and is
measured from the top or bottom of the wave to the middle
a. frequency
b. wavelength
c. amplitude
Answers
Answer:
c
Explanation:
because is the measurement of amplitude
Amino acids are monomers for which biochemicals? nucleic acids polysaccharides lipids polypeptides
Answers
Answer:
polypeptides in other words proteins.
Amino acids are monomers for polypeptides. Therefore, the correct option is option D.
The chemical substances known as amino acids are what make up proteins. They are crucial for the development, upkeep, and repair of our body's cells and tissues. The distinctive structure of amino acids, which consists of a core carbon atom joined to an amino group, a carboxyl group, a hydrogen atom, and a side chain known as the R-group that varies between different amino acids, is what makes them stand out from other compounds. There are 20 different amino acids that are frequently present in proteins, each of which has a unique configuration of atoms in its R-group.
Therefore, the correct option is option D.
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For the reaction: P4 + 6C12 – 4 PC13
What mass of PCl3 forms in the reaction of 75.0 g P4 with 275 g Cl2?
Answers
Answer:
332.3g
Explanation:
hope this helps loves x
For each reaction below, use the drop-down menus to select which compound will form a precipitate. Note: It is possible that no precipitates form.
Na2S + Cd(NO3)2 → CdS + 2NaNO3
FeCl3 + 3KOH → 3KCl + Fe(OH)3
Na2CO3 + Ba(NO3)2 → BaCO3 + 2NaNO3
Answers
Answer:
1. Cadmium sulfide
2. Iron (III) hrydroxide
3. Barium carbonate
1. Cadmium sulfide
2. Iron (III) hydroxide
3. Barium carbonate
These three will form a precipitate in the respective reactions.
What is a precipitate?
In chemistry, a solid is formed by a change in a solution, often due to a chemical reaction or change in temperature that decreases the solubility of a solid.
[tex]Na_2S + Cd(NO_3)_2[/tex] → [tex]CdS + 2NaNO_3[/tex]
cadmium sulfide will form a precipitate.
[tex]FeCl_3 + 3KOH[/tex]→ [tex]3KCl + Fe(OH)_3[/tex]
iron (III) hydroxide will form a precipitate.
[tex]Na_2CO_3 + Ba(NO_3)_2[/tex] → [tex]BaCO_3 + 2NaNO_3[/tex]
barium carbonate will form a precipitate.
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Find the final temperature when 10 grams of aluminum at 130 c mixes with 200 grams of water at 25 c. assume no water is lost as water vapor. specific heat values (c) for aluminum= 0.901 j/g c and water 4.18 j/g c
Answers
Answer:
About 26.12 C°
Explanation:
Following q = mc∆t, assuming q is the same
(10g)(130 - T)(0.901j/g*c) = (200.0g)(T - 25)(4.18j/g*c)
T = 26.12
The joining of two smaller nuclei to form one larger nucleus is called...
Select one:
a. alpha decay.
b. beta decay.
c. nuclear fusion.
d. nuclear fission
Answers
How do you think the light would travel if the laser pointer was 1000 meters away?
Answers
It is entirely dependent on the laser power (mW). The light's divergence is affected by it.
What exactly is a laser?A laser is a device that produces a powerful beam of coherent monochromatic light by stimulating the emission of photons from excited atoms or molecules.
A laser is generated when electrons in optical materials such as glass, crystal, or gas absorb energy from an electrical current or light.
We can see a 5mW 650 nm laser glowing on a white surface in full darkness from 500 to 1 kilometer away.
As a result of the divergence, the predicted dot 1 km away will be a massive dot with a diameter of 20–30 m30 m and will be exceedingly dark.
As a result, it is entirely dependent on the laser.
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If 321.5 grams of phosphorus chloride are made, how many grams of phosphorus were consumed?
Answers
If 321.5 grams of phosphorus chloride are made, then 168.235 grams of phosphorus were consumed.
What is the relation between mass & moles?Relation between the mass and moles of any substance will be represented as:
n = W/M, whereW = given massM = molar massMoles of phosphorous chloride = 321.5g / 74.55g/mol = 4.315 mole
Given chemical reaction is:
2K + Cl₂ → 2KCl
From the stoichiometry of the reaction:
2 moles of KCl = produced by 2 moles of K
4.315 moles of KCl = produced by 4.315 moles of K
Mass of potassium = (4.315mol)(39g/mol) = 168.235 g
Hence required mass of phosphorous is 168.235 g.
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Which hydrocarbon is unsaturated?