Answer:
fdsfesd
Explanation:
fesdfes
What forms of energy might you encounter while strolling along the beach on a clear day?
Please help!! any inappropriate answers will be reported
Which of the below best explains the relationship between the surface area of a solid solute and the dissolution (rate it dissolves) in a solvent
Question 3 options:
As the surface rate decreases the solid dissolves faster
As the surface area increases the solid dissolves faster.
As the surface area increases the solid dissolves slower.
Surface area has no affect on the dissolving rate of the solid.
what are the formulas for the following elements?
-Beryllium fluoride
-Barium fluoride
-Strontium sulfide
-Titanium(II) chloride
-Iron(II) sulfate
-Vanadium(III) cyanide
Answer:
Beryllium fluoride - BeF2
Barium fluoride - BaF2
Strontium sulfide - SrS
Titanium(II) chloride - TiCl2
Iron(II) sulfate - FeSO4
Vanadium(III) cyanide - V( CN )3
Photosynthesis is an example of an __
process.
What is the density of tellerium tribromide at 743.5 torr and 23.2 °C
Answer: The density of tellerium tribromide is 14.8 g/L
Explanation:
The relation between density and Molar mass:
[tex]d=\frac{PM}{RT}[/tex]
P = pressure of gas = 743.5 torr = 0.98 atm (760torr=1atm)
M = Molar mass = 367 g/mol
R = gas constant =[tex]0.0821Latm/Kmol[/tex]
T = temperature =[tex]23.2^0C=(23.2+273)K=296.2K[/tex]
[tex]n=\frac{PV}{RT}[/tex]
[tex]d=\frac{0.98atm\times 367g/mol}{0.0820 L atm/K mol\times 296.2K}=14.8g/L[/tex]
The density of tellerium tribromide is 14.8 g/L
Your car burns gasoline as you drive up a large mountain. What energy
transformation is the car performing?
O A. Chemical energy to kinetic energy and gravitational potential
energy
B. Kinetic energy to chemical energy and light energy
C. Chemical energy to kinetic energy and nuclear energy
D. Gravitational potential energy to sound energy and nuclear energy
SUBNI
Answer:
chemical energy to kinetic energy
Explanation:
Answer:
A. Chemical energy to kinetic energy and gravitational potential
energy
Explanation:
Balance the equation
C2H6O+O2 ——> CO2 + H2O
Is farting an example of an exothermic reaction?
*for real though I have never heard of a cold fart
Answer:
i would assume i mean who has cold farts
Explanation:
Yes, farting is an example of an exothermic reaction.
What is an exothermic reaction?A reaction that is chemical in nature and is characterized by the release of energy in the form of heat or light is called an exothermic reaction.
Farting is a normal part of digestion that reflects the activity of the bacteria in your gut.
Yes, farting is an example of an exothermic reaction.
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Which of the following aqueous solutions would boil at the highest temperature?
A) 100 g of NaCl in 125 g of water
B) 100 g of NaCl in 250 g of water
C) 100 g of NaCl in 500 g of water
D) 100 g of NaCl in 1000 g of water
How many particles are in 1 mole of CO2?
In the Haber reaction shown below, _______?is the
limiting reactant if equal moles of each reactant are used.
3H2 + N2 -> 2NH3
Answer: hydrogen
Explanation:
Describe what happens to the light between when it first enters a raindrop and when it comes out of the raindrop. Support your answer with evidence from the text.
When sunlight enters a raindrop in the air, the light splits into a multitude of colors. This light then reflects off the back of the raindrop and re-emerges in the direction in which the light first entered. The light emerging from many raindrops creates a rainbow.
How can you tell if an ion is a polyatomic ion if all you have is the name?
I can't seem to figure this out! Please help me out!
:)
Answer:
All the elements on the periodic table start with a capital letter and only some of them have a second letter that is lower case. So if you see two capital letters together in a ion then you will know that it is a polyatomic.
Answer: All the elements on the periodic table start with a capital letter and only some of them have a second letter that is lower case. So if you see two capital letters together in a ion then you will know that it is a polyatomic.
Explanation:
What does the root “thermal” mean?
Please Help
I will give you Brainliest
Answer:
If it has to do with heat, it's thermal. ... The Greek word therme, meaning “heat,” is the origin of the adjective thermal. Something that is thermal is hot, retains heat, or has a warming effect.
Explanation:
hope it helps :)
define funtional unit?
Answer:
The functional unit of a product system is a quantified description of the performance requirements that the product system fulfils. The functional unit should as far as possible relate to the functions of the product rather than to the physical product.
Explanation:
Based on the data what can be inferred about the biotic factors of this religion
Answer:
I would say the answer is D
Explanation:
the difference between objects that are sources of light and objects that reflect light.
Answer:
Explanation:
sun is the main source while the other object reflect light on the sun
Determine how many moles of water (H2O) are formed from the combustion of 7.50 x 1023 molecules of propane (C3H8). 1 C3H8 (g) + 5 O2 (g) ⟶ 3 CO2 (g) + 4 H2O (g)
Answer:
4.98 moles of H₂O
Explanation:
The balanced chemical equation for the combustion of propane is:
C₃H₈ (g) + 5 O₂ (g) ⟶ 3 CO₂ (g) + 4 H₂O (g)
That means that 1 mol of propane (C₃H₈) produces 4 moles of water (H₂O).
We know that 1 mol is equal to 6.022 x 10²³ molecules. So, we convert the molecules of propane to moles as follows:
7.50 x 10²³ molecules C₃H₈ x 1 mol/6.022 x 10²³ molecules = 1.245 mol C₃H₈
Now, we use the stoichiometric ratio 4 mol H₂O/1 mol C₃H₈ derived from the chemical equation to calculate the moles of water produced:
1.245 mol C₃H₈ x 4 mol H₂O/1 mol C₃H₈ = 4.98 mol H₂O
A 7.0 L sample of gas begins at 2.5 atm and 320. K. What is the new pressure if the temperature is changed to 273 K and the volume remains constant at 7.0 L?
Answer:
2.1 atm
Explanation:
We are given the following variables to work with:
Initial pressure (P1): 2.5 atm
Initial temperature (T1): 320 K
Final temperature (T2): 273 K
Constant volume: 7.0 L
We are asked to find the final pressure (P2). Since volume is constant, we want to choose a gas law equation that relates initial pressure and temperature to final pressure and temperature. Gay-Lussac's law does this:
[tex]\frac{P_{1}}{T_1} =\frac{P_{2}}{T_2} \\[/tex]
We can rearrange the law algebraically to solve for [tex]P_{2}[/tex].
[tex]{P_{2}} =\frac{(T_2)(P_{1} )}{T_1} \\[/tex]
Substitute your known variables and solve:
[tex]P_2 = \frac{273K(2.5atm)}{320K} = 2.1 atm[/tex]
pls help what’s the answer?
What are the layers of earth including the lithosphere and the asthenosphere?
Answer:
The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth's structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below
Explanation:
They are, in order from the exterior to the interior – the crust, the mantle, the outer core, and the inner core.
PLLZZZZ HELPPPP IT IS A TIME ASSIGNMENT !!!
Answer:
plato is the answer
Explanation:
that what i think it it is
A solution has a volume if 259 mL and contains 0.70 mol MaCl. What is its molarity
Answer:
2.8 m
Explanation:
:)
13. An organic compound is found to contain 77.42% of C, 7.53% of H and
nitrogen. The mass of 1.12L of its vapour at NTP is 4.65g. Determine
the
empirical and molecular formula of the compound.
Answer
7.53% 97% if you divide it you can get the answer
Explanation:
Calculate the heat absorbed when 68.8 g of ice at -30.0 c is converted to steam at 160 c
Answer: 219 kJ
Explanation:
A B C D ............
Answer:
I think gamma, I'm not sure tho
5.
Primary succession occurs when pioneer species move into an area that has no plants. Which organisms are common pioneer species?
A Conifer trees and tall grasses with roots that loosen the soil
B. O Mosses and lichens that can grow on rocky surfaces
c. Grasses and weeds that arrive as seeds carried by the wind and then germinate in rich soil
D. O Vines and shrubs that help prevent the erosion of shallow soil
No
Answer:
C
Explanation:
Primary succession occurs when pioneer species move into an area that has no plants. This happens because of Mosses and lichens that can grow on rocky surfaces and the correct option is option B.
What is Primary Succession?Primary succession refers to the establishment of a community in an uninhabited area such as rocks.
It is a type of ecological succession (the evolution of a biological community’s ecological structure) in which plants and animals first colonize a barren, lifeless habitat.
Species that arrive first in the newly created environment are called pioneer species, and through their interactions they build a simple initial biological community.
Therefore, Primary succession occurs when pioneer species move into an area that has no plants. This happens because of Mosses and lichens that can grow on rocky surfaces and the correct option is option B.
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As the water molecules re-freeze, what happens to the salt ions that are mixed in with the water?
Answer:
Explanation:
Since salt is composed of two ions Na+ and Cl- it will attract to the opposite poles of the water and form a ion-dipole bond. This will cause the phenomenon freezing point depression where as the name states it will take a lower tempertature to freeze it. So instead of freezing at 0 degrees c it will freeze at a negative 2 or so on.
The salt ions end up slowing the growth of ice as the water molecules re-freeze.
What is Depression at the freezing point?Freezing point depression can be defined as the decreasing of the freezing point of pure solvents upon the addition of different kinds of solutes.
Depression in the freezing point can be defined as a colligative property that is proportional to the molality of the solution.
As liquid water gets colder and colder, the motions of water molecules become slower and slower. When salt is added to water, the saltwater solution is composed of both water molecules and dissolved salt ions.
As a result, salt ions can easily replace some of the water molecules. Saltwater freezes more slowly than pure water due to many of the water molecules would be "crashing" into the ice's surface in pure water and are replaced by salt ions.
Therefore, the salt water will freeze at a lower temperature than the pure water.
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The atom has 2 different types of subatomic particles.
True or False
Answer:
False
Explanation:
There is three
Without changing temperature, how could you increase the pressure of a gas a hundredfold? (100 times greater)?
Answer:
yes 100 greater
I HOPE THIS HELPS