Answer:
i think a as well but not sure
Explanation:
What is stored Energy?
Answer: Energy storage is the capture of energy produced at one time for use at a later time to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery.
Explanation:
What is the correct prefix for 6?
O A. Oct-
O B. Hepta-
O C. Nano-
O D. Hexa-
Answer:
Hexa
Explanation:
Enjoy !
Which statement best summarizes the relationship between volume and pressure of gasses?
A)
As one goes up, the other goes up
B)
As one goes up, the other goes down
C)
Volume and Pressure are unrelated
D)
Volume and Pressure only relate to liquids
For 30 points pls help me with this question
Answer:
a put a as you answer you rock do not give up on your dreams
A workman uses a moveable pulley to lift a heavy load of bricks. What is the input force, if the output force is 150 N?
Answer:
the input force would be 75 N
Explanation:
if the output force is 150 N you divide that in half which leaves with 75 N !! :)
Which spot (30° or 90°) on the paper received the greatest amount of energy?
Answer/Explanation: At high angles like 90 degrees, the light doesn't spread out as much and has a more circular shape. As the ... Solar angle influences how much energy is received in an area.
-Bababooeyboy
I will give you a lot of points help me ASAP please I am begging you
Answer:
hope this helps
Explanation:
In a salt synthesis experiment, 13.1 g of sodium reacts with 94 g of chlorine gas, yielding 22.5 g of sodium chloride. 2Na(s) + Cl2(g) →2NaCl(s) What is the percent yield for this experiment?
Answer:
67.58%
Explanation:
First we convert the masses of the reactants into moles, using their respective molar masses:
Na ⇒ 13.1 g ÷ 23 g/mol = 0.570 molCl₂ ⇒ 94 g ÷ 70.9 g/mol = 1.32 molBy looking at the reaction equation, we know that 1.32 moles of Cl₂ would react completely with (2 * 1.32) 2.64 moles of Na. There are not as many Na moles, so Na is the limiting reactant.
Now we calculate how many NaCl moles would have been produced if all the limiting reactant was consumed:
0.570 mol Na * [tex]\frac{2molNaCl}{2molNa}[/tex]= 0.570 mol NaClWe convert those moles to grams:
0.570 mol * 58.44 g/mol = 33.31 g NaClFinally we calculate the percent yield:
22.5 g / 33.3 g * 100% = 67.58%What is the molal concentration of a sucrose (C12H22011) solution whose freezing point is
-2.00 °C? The Kf for water is 1.86 °C/m.
Answer: The molal concentration of sucrose solution is 1.07 m
Explanation:
Depression in freezing point is given by:
[tex]\Delta T_f=i\times K_f\times m[/tex]
[tex]\Delta T_f=T_f^0-T_f=0.00-(-2.00)^0C=2.00^0C[/tex] = Depression in freezing point
i= vant hoff factor = 1 (for non electrolyte such as sucrose)
[tex]K_f[/tex] = freezing point constant = [tex]1.86^0C/m[/tex]
m= molality
Putting in the values:
[tex]2.00^0C=1\times 1.86^0C/m\times m[/tex]
[tex]m=1.07[/tex]
Thus molal concentration of sucrose solution is 1.07 m
A balloon with a volume of 4.00 L is known to contain 0.200 moles of gas. How many moles of gas remain if some of the gas is released and the new volume is 3.25 L. Assume temperature and pressure remain constant.
Please show work, thank you :D.
Explanation:
By Avagadro's Law,
V¹n¹ = V²n², where P and T are constant.
Therefore (4.00L)(0.200mol) = (3.25L)n²,
n² = 0.246mol. (3s.f.)
P.S. n² does not mean the square of n in this case, it is just a subscript.
Ideal gas law is valid only for ideal gas not for vanderwaal gas. Combined Boyle's and Charles' gas law is used here. Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.
What is ideal gas equation?Ideal gas equation is the mathematical expression that relates pressure volume and temperature.
Mathematically the relation between Pressure, volume and temperature can be given as
PV=nRT
where,
P = pressure of ideal gas
V= volume of ideal gas
n =number of moles of ideal gas
T =temperature of ideal gas
R = Gas constant = 0.0821 L.atm/K.mol
By Avagadro's Law,
V₁n₁= V₂n₂, where P and T are constant.
V₁×n₁= V₂×n₂,
(4.00L)(0.200mol) = (3.25L)n²
n₂ = 0.246mol.
Therefore, 0.246mol of gas remain if some of the gas is released and the new volume is 3.25 L.
To learn more about ideal gas equation, here:
https://brainly.com/question/14826347
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how many moles are in 1.51 x 10^26 atoms of xenon? will mark brainlyest
0.94Answer:
Explanation:
TO find the number of moles in a substance given its number of
entities we use the formela
2. Which WHMIS symbol would require gloves? A ventilator? A gas mask?
Answer:
Ventilator
Explanation:
What is the WHMIS 1988 classification? ... Symbol for Class D1 ... Direct contact with the liquefied gas can chill or freeze the skin (frostbite). ... Take precautions to ensure your own safety before attempting rescue (e.g. wear ... Increase ventilation to area or move leaking container to a well-ventilated and secure area.
So B. is the Right Choice!
(IMAGE ATTACHED)
I dont know what this is asking me, anyone know how to do this?
Answer:
Oh, you need to get the blue dots, and move them to the table or graph to plot them!
Hope that makes sense!
If you have 6.00 x 10^24 molecules of oxygen how many moles of oxygen would you have?
36.00 moles of oxygen
9.96 moles of oxygen
12.02 moles of oxygen
1.02 moles of oxygen
Answer:
9.96 moles of oxygen
Explanation:
Given data:
Number of molecule of oxygen = 6.00×10²⁴ molecules
Number of moles of oxygen = ?
Solution:
1 mole contain 6.022 ×10²³ molecules
6.00×10²⁴ molecules × 1 moles of oxygen / 6.022 ×10²³ molecules
0.996×10¹ moles of oxygen
9.96 moles of oxygen
The number 6.022 × 10²³ is called Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
If the theoretical yield of a reaction was calculated to be 42.6 grams and when the
experiment was conducted the amount produced was 20.7 grams, the what is the percent
yield of the experiment?
Answer:
48.59%
Explanation:
theoretical yield = 42.6g
actual yield = 20.7g
% yield = 20.7/42.6 x 100 = 48.59% (2 d.p.)
Which has a density that is greater than 1.00 g/ml? Cole or Diet Coke?
Answer:coke
Explanation:
Coke contains more sugar making it more dense
Susie wants to make lemonade on a hot summer day. She mixes lemon juice, water, and sugar in a large container. Which of the following happens as she combines the ingredients?
They mix together to form a new compound
They mix together to form a homogeneous solution
The stirring motion causes them to break down into elements
The heavier items will not completely dissolve, creating a suspension
Answer:
They mix together to form a new compound
Explanation:
I hope its correct if not I'm sorry!
Magnetic fields all have the same or equal strength .
true or false ?
The _energy of the baseball is the sum of the kinetic energy and _energy of the particles that make up the baseball
Answer:
Mechanical energy
Kinetic energy
Explanation:
The mechanical energy is the sum of the kinetic and potential energy of the particles that make up the baseball.
Mechanical energy is made up of kinetic energy and potential energy. When the baseball is in motion, the particles make use of the kinetic energy, also known as motion energy and when the ball is not in motion the particles make use of the potential energy, also known as stored energy.
The team of scientists measured the salinity and density of seawater at points throughout the North Atlantic Ocean. Their data is shown on the graph below. What conclusion can you draw about the correlation between salinity and density of seawater?
Answer:
As the salinity of seawater increases, the density of the water also increases.
Explanation:
Edmentum answer
Answer:
The salinity of seawater increases, the density of the water also increases.
Explanation:
Please help me out with this assignment
Answer:
1. 7 meters
2. gullet
4. Not sure about this
6. strong
7. digestive
8. starch
12. Not sure about this either
14. Water
15. Jejunum
19. teeth
Hope this helps!
. In a full paragraph, tell what would you do to remove the kudzu from your property forever and what steps you will take to ensure your land and the native species on it are not being harmed. pls answer now
Efforts to control kudzu infestations have included the following methods: cutting, grazing, digging, disking, prescribed burning and application of herbicides. Roots of mature plants grow too deeply to be affected by freezing. Burning will kill only the very young plants.
Ideally, simply pulling out the heavy vines would prevent the kudzu from returning. However, you still need to kill each of the rooted stems at their crowns. Mowing or cutting back the vegetation to the ground provides the first step in removal. Then it’s time to bring out the big guns in the form of chemical herbicides.
Lead melts at 328 ℃. How much heat is required when 23.0 g of solid lead at 297 K condenses to a liquid at 702 K?
Heat = 1.74 kJ
Further explanationGiven
melts at 328 ℃ + 273 = 601 K
mass = 23 g = 0.023 kg
initial temperature = 297 K
Final tmperature = 702 K
Required
Heat
Solution
1. raise the temperature(297 to 601 K)
c of lead = 0.130 kJ/kg K
Q = 0.023 x 0.13 x (601-297)
Q = 0.909 kJ
2. phase change(solid to liquid)
Q = m.Lf (melting/freezing)
Q = 0.023 x 23 kj/kg = 0.529 kJ
3. raise the temperature(601 to 702 K)
Q = 0.023 x 0.13 x (702-601)
Q = 0.302 kJ
Total heat = 1.74 kJ
7. Which of the following elements is more electronegative than carbon? *
Answer:
c. Cl
Explanation:
plsss help me with thiss
b) NaOH + HCl =
c) Na2O + H20 =
d) P + O2 =
e) S + O2 =
f) Na + H2O =
i have 9 protons, 10 neutrons, and 5 electrons. what is the charge of my nucleus?
Answer:
+4
Explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match the sequences with the mutations that occurred in them.
deletion translation inversion duplication
translocation
inversion
duplication
Answer:
Yall are coming after that person above me when theres no diagram!!!! HELLO????????????? crazy
Explanation:
Write one benefit of fungi
Answer:
below
Explanation:
Environmental Benefits. Fungi feed on dead organic matter which includes leaf litter, soil, dung, wood and dead animals.
1
Which of the following is an example of a body fossil?
А
A perfect mold of a dinosaur bone
B
A carbon print left by a leaf
C
The skull of a mammoth that fell into a tar pit
D
A dinosaur footprint
Answer:
A perfect mold of a dinosaur bone
_NaHCO(s) --> _CO2+_NaCO(s)+_H2O
balance the equation
The balanced equation :
2NaHCO₃⇒CO₂ + Na₂CO₃+H₂O
Further explanationGiven
Reaction
NaHCO(s) --> _CO2+_NaCO(s)+_H2O
Required
The balanced equation
Solution
Maybe the equation should be like this :
NaHCO₃⇒CO₂ + Na₂CO₃+H₂O
Give a coefficient
NaHCO₃⇒aCO₂ + bNa₂CO₃+cH₂O
Make an equation
Na, left=1, right=2b⇒2b=1⇒b=1/2
H, left=1, right=2c⇒2c=1⇒c=1/2
C, left=1, right=a+b⇒a+b=1⇒a+1/2=1⇒a=1/2
The equation becomes :
NaHCO₃⇒1/2CO₂ +1/2Na₂CO₃+1/2H₂O x2
2NaHCO₃⇒CO₂ + Na₂CO₃+H₂O