Answer:
P2 = 2.25 atm
Explanation:
Given:
V1 = 1.5 L. V2 = 2.0 L
P1 = 3.0 atm. P2 = ?
Use Boyle's law and solve for P2:
P1V1 = P2V2
or
P2 = (V1/V2)P1
= (1.5 L/2.0L)(3.0 atm)
= 2.25 atm
Pls hurry
Light is the fastest known entity in our universe.
O True
O False
Mark this and return
Save and Exit
Answer:
True
Explanation:
Answer:
true
Explanation:
source(s): trust me bro
What did the Fish and Wildlife Service (FWS) do to bring back black-footed ferrets from extinction?
The FWS moved mating pairs from the Wyoming population to over 8 western states and Mexico to begin new colonies.
The captive breeding program was implemented too late to save the black-footed ferret.
The FWS monitored a Wyoming population and captured enough individuals to start new populations.
The FWS use a captive breeding program to start populations in 8 states.
Answer:
The FWS use a captive breeding program to start populations in 8 states
Explanation:
I just took a quiz and got this answer right.
Answer:
The FWS use a captive breeding program to start populations in 8 states
Explanation:
an evacuated cylinder has a volume of 50 liters. if 20 liters of nitrogen fas and 20 liters of oxygen gas are pumped into this evacuated cylinder, how much of the cylinder is filled with the two gasses?
The nitrogen gas and the oxygen gas will both occupy 50 liters.
Volume of a gasLet us recall form the kinetic theory of gases that a gas is in constant random motion. The gas does not have a specific volume but takes on the volume of the container since it will expand and fill the container.
The volume occupied by the two gases will be the same as the volume of the container. Hence, the nitrogen gas and the oxygen gas will both occupy 50 liters.
Learn more about volume of a gas: https://brainly.com/question/4519953
Answer:
B. The entire container because gases will expand to fill it.
Explanation:
I took to test, plus it directly says this in the lesson
Since a light year is a unit of astronomical distance equal to the distance light travels in one year, which phrase best completes the sentence? The distance from the sun to Earth would be ___________.
Question 3 options:
exactly one light year
less than one light year
more than one light year
any number of light years
Which words best completes the sentence? The universe is made up of __________ of galaxies and the number of starts you would find in a galaxy would be in the _________.
Question 1 options:
one galaxy, hundreds of stars
thousands of galaxies , billions of stars
several galaxies , thousands of stars
5 galaxies, millions of stars
NO LINKS NO VIDS NO WEBSITES NO FILES REAL ANSWER ANS PLZZZ HELP ASAP
Answer:
Thousands of galaxies , billions of stars
Explanation:
I can't answer the first question but I can answer the second.
"They form clusters that are light years away from other clusters."
"Which statement best describes how galaxies exist in the universe?"
There's another answer to one of the questions on the quiz.
Answer:
less than one light year
thousands of galaxies , billions of stars
Explanation:
the distance from the sun to Earth is 0.00001581 light years
i might be a little late but i hope this helps :D
Which is NOT a characteristic of mixture Help please
A. Elements in a mixture are combined without creating a chemical reaction
B. Each substance in a mixture retains its own chemical identity
C. A chemical change occurs within a mixture
D. Two or more elements are combined with one another
Answer:
Its C let me know if its wrong!
what kind of compound is an acid?
Answer:
Molecular Compounds.
Explanation:
They are Molecular Compounds.
Imagine that you meet with the team of scientists who assembled the graphs in part B. What questions would you ask the team about the data presented?
Answer:
They made this graphics, how they measured the gas and how this affected the climate change horribly.
They created these images to show how the gas was measured and how the climate change was adversely affected the greenhouse gases.
What is greenhouse gases?A greenhouse gas is a gas that produces the greenhouse effect by both absorbing and emitting radiant energy at thermal infrared wavelengths. The five main greenhouse gases in the atmosphere of Earth are ozone, carbon dioxide, methane, and water vapor.
The gases that trap heat in the earth's atmosphere are referred to as greenhouse gases. The earth's surface warms during the day when the light beams through the atmosphere.
The earth's surface cools at night, redistributing heat into the atmosphere. However, part of the heat is captured by the atmosphere's greenhouse gases.
Therefore, how the climate change was adversely impacted the greenhouse gases must ask the team.
Learn more about greenhouse gases, here:
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23)
A reaction between an alcohol and an organic acid is classified as
A)
fermentation
B)
saponification
C)
esterification
D)
substitution
Answer:
it's esterification reaction
2
CuCl2 +4KI -> 2 Cul + 4 KCI + 12
Answer:
Explanation:
This is an example of a limiting reactant question, and is very common as a general chemistry problem.
We first see the balanced equation, that is:
2CuCl2+4KI→2CuI+4KCl+I2
We first need to find the limiting reactant
We see that 0.56 g of copper(II) chloride (CuCl2) reacts with 0.64 g of potassium iodide (KI) . So, let's convert those amounts into moles.
Copper(II) chloride has a molar mass of
134.45 g/mol . So in 0.56 g of copper(II) chloride, then there exist
0.56g134.45g/mol≈4.17⋅10−3 mol
Potassium iodide has a molar mass of
166 g/mol . So, in 0.64 g of potassium iodide, there exist
if it wrong i am sorry
(NEED HELP ASAP) Which statement best describes a key difference between a solar and lunar eclipse?
A.
During a lunar eclipse, the moon passes through Earth’s shadow; during a solar eclipse, the moon's shadow moves across Earth.
B.
During a lunar eclipse, the moon’s shadow falls on Earth’s surface; during a solar eclipse, the moon passes through Earth’s shadow.
C.
Solar eclipses happen once every ten years while lunar eclipses occur with every new moon.
D.
Solar eclipses occur with every new moon while lunar eclipses happen every five to six years.
Answer:
a
Explanation:
Helppppppppp DON’T GUESSS
Answer:
A. For every mole of carbon dioxide consumed, one mole of water is consumed
Explanation:
The photosynthetic equation is given as follows:
6CO2 + 6H2O → C6H12O6 + 6O2
The coefficient in front of each reactant and product is used to represent the number of moles needed for each compound/element in the reaction.
Based on this, this means that 6 moles of CO2 (carbon dioxide) needs to react with 6 moles of H2O (water) to form the products.
In a simpler form, this also means that for every 1 mole of carbon dioxide (CO2) consumed, one (1) mole of water (H2O) is consumed.
In what way is psychology connected to the natural sciences and different than other social sciences?
a. It explores the influences of society on individuals and their behavior.
b. It explores the influences of society on group behavior.
c. It explores biological explanations for human behavior.
d. It proved that human behavior is the result of biology
which element dissolves readily in water to form an alkaline solution?
pls help
Answer:
An alkaline solution can be formed when a metal oxide is dissolved in water. An acidic solution can be formed when a non-metal oxide is dissolved in water. For example, magnesium oxide dissolves to form alkaline solutions.
A certain kind of fish in the ocean eats only algae a seal Easter fish then a bear eats the seal when the bear dies, it is recycled by bacteria. The second consumer in this scenario is the.
Answer:
The seal
Explanation:
This question depicts a typical food chain, which is the linear relationship that shows the transfer of energy from one organism to another. Every food chain consists of organism in trophic levels. One organism in each trophic level. The food chain starts with a PRIMARY PRODUCER, which is the algae in this case.
The fish is the PRIMARY CONSUMER because it feeds directly on the algae (producer). The secondary consumer is the SEAL, which feeds on the fish. The summarized food chain is as follows;
Algae → Fish → Seal → Bear → Bacteria
0.500 mile of potassium oxide is dissolved in enough water to make 2.00 L of solution. Calculate the molarity of this solution (plz help!) plz no links
The correct question is as follows: 0.500 moles of potassium oxide is dissolved in enough water to make 2.00 L of solution. Calculate the molarity of this solution (plz help!)
Answer: The molarity of this solution is 0.25 M.
Explanation:
Molarity is the number of moles of a substance divided by volume in liter.
As it is given that there are 0.5 moles of potassium oxide in 2.00 L of water so, the molarity of this solution is calculated as follows.
[tex]Molarity = \frac{moles}{volume(in L)}\\= \frac{0.5 moles}{2.00 L}\\= 0.25 M[/tex]
Thus, we can conclude that molarity of this solution is 0.25 M.
A child receives a balloon filled with 47 L of helium from a vendor at an amusement park. The temperature outside is 320 K. What will the volume of the balloon be when the child brings it home to an air-conditioned house at 295 K? Assume that the pressure stays the same. Answer in units of L.
Answer:
43.3 L
Explanation:
Applying,
V/T = V'/T'................... Equation 1
Where V = Initial volume of the ball0on, T = Initial temperature of the balloon, V' = Final volume of the balloon, T' = Final Temperature of the balloon.
make V' the subject of the equation
V' = VT'/T................ Equation 2
From the question,
Given: V = 47 L, T = 320 K, T' = 295 K
Substitute these values into equation 2
V' = (47×295)/320
V' = 43.3 L
what is the proper formulanGaseous Butane (C4H10) that reacts with Gaseous Oxygen (O2) in a combustion reaction to form Carbon dioxide Gas and Gaseous Water (Dihydrogen monoxide).
Answer:
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Explanation:
The balanced equation for the reaction between butane and oxygen to produce carbon dioxide and water can be written as follow:
C₄H₁₀ + O₂ —> CO₂ + H₂O
Next, we shall balanced the equation. This is illustrated below:
C₄H₁₀ + O₂ —> CO₂ + H₂O
There are 4 atoms of C on the left side and 1 atom on the right side. It can be balance by writing 4 before CO₂ as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + H₂O
There are 10 atoms of H on the left side and 2 atoms on the right side. It can be balance by writing 5 before H₂O as shown below:
C₄H₁₀ + O₂ —> 4CO₂ + 5H₂O
There are 2 atoms of O on the left side and a total of 13 atoms on the right side. It can be balance by writing 13/2 before O₂ as shown below:
C₄H₁₀ + 13/2O₂ —> 4CO₂ + 5H₂O
Multiply through by 2 to express in whole number ratio.
2C₄H₁₀(g) + 13O₂(g) —> 8CO₂(g) + 10H₂O(g)
Thus, the equation is balanced.
What are the parts of the glowstick? What are the chemicals inside?
In which location would a free neutron from a decaying U-235 atom be most likely to cause another atom to split?
there you go. giving answers to most questions on the chem test (10th grade)
Answer:
The appropriate option would be B . Explanation: This is due to the reason enriched U has insignificant polluting influences. Along these lines, the U -235 particles focuses together and the possibilty of high energy neutron bombarding another Uranium -235 molecule in the region is high.
Explanation:
Answer:
thank u so much for the answers ! !! How do u get the answers???
Explanation:
[check out their questions for the answers guys chem final]
How will nuclear fusion change as the sun ages?
Answer:
It won't be good.
Explanation:
In the core of the sun, hydrogen is produced by nuclear fusion. when the sun ages, it starts to run out of the hydrogen. when it runs out, nuclear fusion can't generate heat, and then the sun expands, becoming a red giant.
help please this is a major grade (my birthday is next week) if i dont pass i wont celebrate my birthday please help!
Answer:
The answer to the question is C
How does the difference in air pressure masses affect wind speed? When low air pressure and high air pressure masses are far apart, air moves quickly from low to high pressure areas. When low air pressure and high air pressure masses are far apart, air moves quickly from high to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from high pressure to low pressure areas. When low air pressure and high air pressure masses are close together, air moves quickly from low to high pressure areas; this creates stronger wind speeds.
Answer:
it is from the currents the movements cause
Explanation:
Answer:The greater the difference in pressure, the faster the winds. When a high- and a low-pressure air mass are far apart, air moves slowly from high to low pressure. When a high- and a low-pressure air mass are far apart, air moves quickly from high to low pressure.
Explanation:
8.) If 396 g of Carbon Dioxide (CO2) are produced, what mass of Oxygen
(02) reacted? *
Answer:
264g
Explanation:
C + O2 -> CO2
_g + _g -> 396g
396÷3=132
C (132g) + O2 (264g) -> CO2 (396g)
Which statement best explains what causes the phase change from solid ice to liquid water?
a.Heat is released as ice turns into liquid water.
b.The mass increases when ice turns into liquid water.
c.Heat is absorbed as ice turns into liquid water.
d.The hydrogen bonds prevent the absorption of heat.
I really need help please.
NaOH + AlCl3 --> Al(OH)3 + NaCI.
How many grams of AlCl3 are needed to produce 100.0 g NaCl?
Answer:
Grams of AlCl₃ ~ 80 grams (1 sig. fig.)
Explanation:
Write and balance given equation.
Coefficients should be in smallest whole number ratios. => called ‘The Standard Equation’ and is assumed to be at 0˚C & 1atm. pressure.
3NaOH + AlCl₃ => Al(OH)₃ + 3NaCI
Write below compound what’s given and what’s needed, i.e., to be calculated.
Rxn: 3NaOH + AlCl₃ => Al(OH)₃ + 3NaCI
Given: --------- (?g) -------- 100.0g
Rxn Moles: 3 moles 1 mole 1 mole 3 moles
Calc’d Moles: --------- (? Moles) -------- 100.0g/58g∙molˉ¹
= 1.724 mol NaCl
Calculate moles AlCl₃ needed using mole ratios:
(? moles AlCl₃/1 mole AlCl₃) = (1.724 moles NaCl/3 moles NaCl)
=> ? moles AlCl₃ = (1.724 moles NaCl x 1 mole AlCl₃) / (3 moles NaCl)
=> ? moles AlCl₃ = (1.724 x 1 / 3) mole AlCl₃ = 0.575 mole AlCl₃ needed
Convert moles AlCl₃ needed to grams AlCl₃ needed:
Grams AlCl₃ needed = calculated moles AlCl₃ x formula wt. AlCl₃
= 0.575 mole AlCl₃ x 133.34 grams AlCl₃/mole AlCl₃
= 76.6705 grams AlCl₃ needed (calculated answer)
Express answer in appropriate number of sig. figs.
Number of sig. figs. for answer = the given measured data having the least number of sig. figs.In this case, grams of NaCl = 100.0 grams (measured data) contains only 1 sig. fig. (Do not use conversion factors or universal constants)Therefore the final answer => Grams of AlCl₃ ~ 80 grams (1 sig. fig.)What traits are beneficial in specific climate regions?
⇄Climate features also include windiness, humidity, cloud cover, ⇆ atmospheric pressure, and fogginess. Latitude plays a huge factor in determining climate. Landscape can also help define regional climate.⇆
Yes Like Deserts, Tropical Places! ∠/.'/≤
The traits that are beneficial in specific climate regions are windiness, humidity, cloud cover, atmospheric pressure, and fogginess.
There are basically five main climate types on Earth:
Tropical
Dry
Temperate
Continental
Polar
India typically has tropical monsoon climate. The word tropical is used to describe the regions between the Tropic of Cancer and Tropic of Capricorn.
Therefore, The traits that are beneficial in specific climate regions are windiness, humidity, cloud cover, atmospheric pressure, and fogginess.
Learn more about climate, here:
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How much heat is released when 233 grams of water at room temperature (25C) is frozen into ice at -15C?
Answer: The amount of heat released when 233 grams of water at room temperature (25C) is frozen into ice at -15C is 17253.65 J.
Explanation:
As water converts into ice at [tex]0^{o}C[/tex]. So, the change in temperature is taking place from [tex]25^{o}C[/tex] to [tex]0^{o}C[/tex] and then from [tex]0^{o}C[/tex] to [tex]-15^{o}C[/tex].
So, amount of heat released by water is as follows.
[tex]q_{1} = m \times C \times (T_{2} - T_{1})\\= 233 g \times 4.18 J/g^{o}C \times (25 - 0)^{o}C\\= 24348.5 J[/tex]
m = mass of substance
C = specific heat of water = [tex]4.18 J/g^{o}C[/tex]
[tex]C'[/tex] = specific heat of ice = [tex]2.03 J/g^{o}C[/tex]
The amount of heat released by ice is as follows.
[tex]q_{2} = m \times C' \times (T'_{2} - T'_{1})\\= 233 g \times 2.03 J/g^{o}C \times (-15 - 0)^{o}C\\= -7094.85[/tex]
Now, total heat released during this change is as follows.
[tex]\Delta H = q_{1} + q_{2}\\= 24348.5 J + (-7094.85) J\\= 17253.65 J[/tex]
Thus, we can conclude that heat released when 233 grams of water at room temperature (25C) is frozen into ice at -15C is 17253.65 J.
what is the atomic radius of sulfur?
Answer:
16
Explanation:
Atomic mass: 32.065 u
Electrons per shell: 2,8,6
Symbol: S
Which is a possible excited state configuration for Nitrogen?
A. 1-5-2
B. 2-5
C. 1-6
D. 2-5-1
If I have 0.070 moles of gas at a pressure of 0.20 atm and at a temperature of 8.00°C,
what is the volume of the container that the gas is in?
Answer:
PV=nRT
0.20×v = 0.070×8.00
0.20V= 0.56
0.20v÷0.20v = 0.56÷0.20v
= 2.8