Answer:
I need this one asap
Explanation:
Please
The amount of heat energy that will be absorbed by the water from the copper is 37.1 J
Data obtained from the question Mass of copper = 11.9 gInitial temperature (T₁) = 55 °CEquilibrium temperature (Tₑ) = 47 °CSpecific heat capacity of copper (C) = 0.39 J/g°CHeat absorbed by water =? How to determine the heatHeat lost by copper = heat gained by the water
Thus, we shall determine the heat lost by the copper in order to obtain the heat absorbed by the water
The heat lost by the copper can be obtained as follow:
Mass of copper (M) = 11.9 gInitial temperature (T₁) = 55 °CEquilibrium temperature (Tₑ) = 47 °CChange in temperature (ΔT) = 55 – 47 = 8 °C Specific heat capacity of copper (C) = 0.39 J/g°CHeat (Q) =?Q = MCΔT
Q = 11.9 × 0.39 × 8
Q = 37.1 J
Thus, the heat absorbed by the water is 37.1 J
Learn more about heat transfer:
https://brainly.com/question/6363778
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How much heat do you need to raise the temperature of 300 g of ethanol from 0°C to 20°C?
Answer:
14.6
Explanation:
I just took the test
The amount of heat to raise the temperature is 14.7J.
How do you calculate the heat needed to raise the temperature?The specific heat capacity of a substance is the quantity of heat needed to raise the temperature of a unit quantity of the substance by one degree. Calling the amount of heat added Q, which will cause a change in temperature ∆T to a weight of substance W, at a specific heat of material Cp, then Q = w x Cp x ∆T
By applying the formula, we get
Q = w x Cp x ∆T
Q = 300 * 2.46 * 20/1000
Q = 14.760J
What is heat?
Heat is energy that is transferred from one body to another as the result of a difference in temperature.
Learn more about the heat here: brainly.com/question/13439286
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Which equation shows the mathematical relationship between the frequency
and the period of a wave?
O A. T=2f
B. f = T-1
O C. T=1/f
O D. f =T
Answer:
c... just did it on a.pex
Answer:
O C. T=1/f
Explanation:
The period of a wave is the time taken for the wave to complete a cycle while the frequency of a wave is the number of cycles completed per unit time.
The period (T) is the inverse of frequency (f) and vice versa.
Hence mathematically, i can write;
T=1/f
CH3OH is an example of a ____ hydrocarbon.
a.
complete
b.
substituted
c.
functional
d.
synthetic
Answer:
functional
Explanation:
c is correct
Determine the mass in grams of Avogadro's number of C12H22O11
Answer:
2.059524x10^26 if im not wrong
Explanation:
avogadro's number is 6.022x10^23
During Photosynthesis, what does a producer take in from the air?
FILL IN THE BLANKS!!
GIVING BRAINLIEST!!!
NO LINKS!!!
A) A gene; chromosome; genes
B) DNA, chromosome; nitrogen bases
A chromosome; chromosome; genes
D) A chromosome; gene; DNA molecules
What is the balanced equation for the reaction of a solution of sodium sulfate is mixed with strontium chloride?
Answer:
NaSO⁴(ads) ,ganadicate
What is the approximate total mass of the reactants, and how should it compare with the total mass of the products? Multiple choice question. a. 62 g, which should be less than the total mass of the products b. 62 g, which should equal the total mass of the products c. 372 g, which should be less than the total mass of the products d. 372 g, which should equal the total mass of the products
Answer:
b. 62 g, which should equal the total mass of the products
Explanation:
According to the law of conservation of mass, which states that mass of a substance can neither be created nor destroyed, hence, the mass of the reactants of a reaction must be equal to the mass of the products in that reaction.
As stated in this question, if the total mass of reactants is 62g, then, in accordance to the law of conservation of mass, the total mass of products should also be equal to 62g.
Agente infeccioso procariota cuyo ADN está disperso en el citoplasma"
1 punto
virus
bacteria
hongo
protozoo
helminto
una célula procariota o procarionte es un organismo unicelular sin núcleo cuyo material genético se encuentra disperso en el citoplasma reunido en una zona denominada nucleoide. por el contrario las células que sí tienen un núcleo diferenciado del citoplasma se llaman eucariotas es decir aquellas en las que su ADN se encuentra dentro de un compartimento separado del resto de la célula.
which event is part of a confection current in the air
A.warm air sinks
B.cool air swirls
C.warm air rises
NEED ANSWER ASAP
Answer:
air is cooled by a heat source. Convection currents form when warm air rises and cold air sinks.
How
many
molecules are in 8.55x10-15 moles of a substance
Answer:
Know this
1mole of a substance contains 6.022x10²³molecules
Now
8.55x10^-15moles x 6.022x10²³molecules/1mole
=5.15x10^9molecules.
what happened to the weather after mount tambora epurted?
Answer:
The eruption of Mount Tambora eventually reduced the average global temperature by as much as 3 °C.
Explanation:
The Mount Tambora eruption was the largest and most destructive volcanic event in recorded history, expelling as much as 150 cubic km (roughly 36 cubic miles) of ash, pumice, and other rock, and aerosols—including an estimated 60 megatons of sulfur—into the atmosphere. As that material mixed with atmospheric gases, it prevented substantial amounts of sunlight from reaching Earth’s surface, eventually reducing the average global temperature by as much as 3 °C.
The gas in a balloon occupies 1.25 L at 298 K. At what temperature in Celsius (C) will the balloon expand to 6.50 L? (Remember to keep the correct place value in your final answer- thousands place)
Answer:
1549.6K
Explanation:
Using Charles law equation;
V1/T1 = V2/T2
Where;
V1 = initial volume (L)
V2 = final volume (L)
T1 = initial temperature (K)
T2 = final temperature (K)
According to the information supplied in this question:
V1 = 1.25 L
V2 = 6.50 L
T1 = 298K
T2 = ?
Using V1/T1 = V2/T2
1.25/298 = 6.5/T2
0.004195 = 6.5/T2
T2 = 6.5 ÷ 0.004195
T2 = 1549.6K
How many liters of water need to be added to 0.5 moles of CaCl2 to make a 0.20 M solution of CaCl2?
Answer:
2.5M
Explanation:
Molarity is the measure of the molar concentration of a solution. It is calculated using the formula below:
Molarity = n/V
Where;
n = number of moles (mol)
V = volume (L)
According to the information about Calcium chloride (CaCl2) provided in this question;
n = 0.5moles
M = 0.20M
Molarity = 0.5/0.2
Molarity = 2.5M
Help me please!!
Two gas samples are stored in a container with a solid barrier separating the gases. Gas A is at 125 °C, and Gas B is at 80 °C.
What will occur when the solid barrier is removed?
The molecules of Gas A will collide and mix with Gas B molecules. Gas A and Gas B molecules will all speed up. The final temperature will be greater than 125 °C.
The molecules of Gas A will collide and mix with Gas B molecules. Gas A molecules will slow down, and Gas B molecules will speed up. The final temperature will be between 80 °C and 125 °C.
The molecules of Gas A will collide but not mix with Gas B molecules. There will be no changes in the temperature of either side of the container.
The molecules of Gas A will collide and mix with Gas B molecules. Gas A molecules will speed up, and Gas B molecules will slow down. The final temperature will be less than 80 °C.
Select the correct answer. Two charged objects, A and B, exert an electric force on each other. What happens if the distance between them is increased? A. The charge on B decreases. B. The charge on B increases. C. The electric force between them decreases. D. The electric force between them increases.
Answer:
The electric force between them decreases
Explanation:
The force between two charged particle is given by :
[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]
Where
r is the distance between charges
If the distance between the charges is increased, the electric force gets decreased as there is an inverse relation between force and distance.
Hence, the correct option is (c) "The electric force between them decreases"
What causes the process of transmutation?
O A. A gamma ray is emitted from an atom's nucleus.
B. Mass is lost due to the formation of a nucleus.
C. Quarks in the nucleus shift between particles.
D. The number of protons in the nucleus changes.
Answer: D. The number of protons in the nucleus changes.
Explanation:
Transmutation occurs due to a change in the number of protons in the nucleus as this will cause the element to either become another isotope of the same element or an entirely new element altogether.
There are two types of transmutation; Natural and Artificial. Natural transmutation happens as unstable elements such as Uranium-238 try to find stability. They decay until they become a stable element. Artificial transmutation happens when atoms are collided with particles that cause them to change.
¿Cuál es la fórmula química del ácido perclórico?
Cuál es la fórmula química del ácido perclórico ?
[tex] \red{Answer}[/tex]fórmula química del ácido perclórico es HClO4.
Answer:
pls can I get a translation
What is the number of moles in 10.62 L of H2S gas at STP?
Answer:
0.474 moles
Explanation:
divide 10.62 by 22.4.
Ionic compounds are held together with ionic bonds between ions. The ions are formed when valence electrons are
Answer: Electrovalent bonds are produced when electrons are transferred from atoms of one element to atoms of another element, producing positive and negative ions. The bond which is formed by the transfer of electrons between the atoms is called electrovalent bond or ionic bond. Electrovalent bonds are only formed between metals and non-metals. Electrovalent bonds are not formed between two non-metals.
In simple words electrovalent bond involves the transference of a certain number of electrons to another dissimilar atom which has a tendency to gain electrons so that both acquire stable inert gas configurations. The electrostatic attraction always tends to decrease the potential energy. Hence, the potential energy of the system is much less than it was before the formation of an ionic bond.
Explanation: An Ionic bond is the bond formed by the complete transfer of valence electron to attain stability.
This type of bonding leads to the formation of two oppositely charged ions – positive ion known as cations and negative ions are known as anions.
The presence of two oppositely charged ions results in a strong attractive force between them. This force is an ionic or electrovalent bond.
Ionic bonds form between atoms with large differences in electronegativity, whereas covalent bonds formed between atoms with smaller differences in electronegativity.
The compound formed by the electrostatic attraction of positive and negative ions is called an ionic compound.
When the heat wave passes and temperatures
become mild, electrical demand decreases. What
needs to be done to reduce electricity output in
response to this decreased demand?
the answer: lowering the control rods
Answer:
lowering the control rods
Explanation:
(hurry pls)Carl plugs in a lamp that has 0.67 of resistance and 8.1 volts running through it. What is the amount of current running through the lamp? C 543 A C 0.08 A C 12.09 A C743 A
Answer:
C)12.09 Ampere
Explanation:
V= IR
Where I= current of the system
R= resistance= 0.67 ohm
V= potential difference=8.1 volts
Substitute the values
8.1= I× 0.67
I= 8.1/0.67
=12.09 Ampere
An electric current transports 0.20 kC of charge in 14.0 minutes. Calculate the size of the electric current.
Be sure your answer has the correct unit symbol and the correct number of significant digits.
A solution has a [OH−] of 1 × 10−12 M. What is the [H3O+] of the solution?
1 × 10−14 M
1 × 10−2 M
2 M
14 M
Answer: The awnser is B
Explanation:
examples of type of matter that_ through the environment are carbon, nitrogen, and water
Answer:
examples of type of matter that circulate through the environment are carbon, nitrogen, and water
If the pressure of a gas is 1.01 atm and the temperature is 25°C, then if the pressure is increased to 1.10, what is the new temperature?
Answer:
T2 = 51.6°C
Explanation:
Given:
P1 = 1.01 atm
T1 = 25°C + 273 = 298K
P2 = 1.10 atm
T2 = ?
P1/T1 = P2/T2
Solving for T2,
T2 = (P2/P1)T1
= (1.10 atm/1.01 atm)(298K)
= 324.6 K
= 51.6°C
where Tc = Tk - 273
what are fossil fuels made from
Answer:
Coal, crude oil, and natural gas are all considered fossil fuels because they were formed from the fossilized, buried remains of plants and animals that lived millions of years ago. Because of their origins, fossil fuels have a high carbon content.
Explanation:
What is the pressure if 3 mol of gas has a volume of 2.3 L at 15°C?
Answer:
30.84atm
Explanation:
Using the ideal gas formula:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas law constant (0.0821Latm/molK)
T = temperature (K)
According to the provided information in this question,
P = ?
V = 2.3 L
n = 3 mol
T = 15°C = 15 + 273 = 288K
Using PV= nRT
P = nRT/V
P = (3 × 0.0821 × 288) ÷ 2.3
P = 70.9344 ÷ 2.3
P = 30.84atm
What is conservation of matter? What is matter??
PLEASEEE HEELPPP
Answer:
matter is anything that occupies space and mass
Answer: In physics and chemistry, the law of conservation of mass or principle of mass conservation states that for any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.
Explanation: Hope this help :D
A hot object will have ___ kinetic energy
Answer:
More/ Alot? I think is what you are looking for?
Explanation:
It will definitely have some but I'm not sure on what word you are looking for.
