HELP URGENT WILL GIVE BRAIN
A piece of unknown metal with mass 68.6 g is heated to an initial temperature of 100 °C and dropped into 42 g of water (with an initial temperature of 20 °C) in a calorimeter. The final temperature of the system is 52.1°C. The specific heat of water is 4.184 J/g*⁰C. What is the specific heat of the metal?Identify a potential source of error that may have occurred during the calorimetry experiment. Justify your response in two or more complete sentences.

Answers

Answer 1

According to the mass of the metal and the temperature it should be under the average heat of water which is 4.184 but also above it, which brings us back to how much it dropped which means that it goes back and going half way.


Related Questions

Using a periodic table, the symbol Ag stands for: A. Silver B. Cesium C. Potassium D.Gold RIGHT ANSWER GETS BRAINLIES

Answers

A. Silver is the answer

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God bless!

How is the kinetic energy of the particles that make up a substance different
after it changes state?
O A. The kinetic energy is greater after a substance changes from a
plasma to a gas.
O B. The kinetic energy is greater after a substance changes from a
liquid to a solid.
O C. The kinetic energy is less after a substance changes from a liquid
to a gas.
O D. The kinetic energy is less after a substance changes from a gas to
a liquid.

Answers

I believe it is answer A

Answer:

a

Explanation:

i think

Which subatomic particle has a positive charge options:
A. Neutron
B. Electron
C. all of the above
D. Proton

Answers

proton is the answer ur looking for. have a wonderful day :) !!
The answer is D. Proton

Look at this image of a star cluster.
Which type of star cluster is shown?
A .open
b .binary
c .globular
b .eclipsing

Answers

Answer:

The answer is open

Explanation:

its is open  because it's a open  star cluster

The type of star cluster is open. The correct option is A.

What is star cluster?

Star cluster is a large group of stars which are held together by the mutual gravitational attraction. There are two types of star cluster: Open and globular.

The open star clusters have stars arranged in random manner. The globular star cluster have the stars arranged in spherical way.

Thus, the correct option is A.

Learn more about star cluster.

https://brainly.com/question/13788441

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what is santa's average speed when visiting houses if he visits 800 million houses over 48 hours?

Answers

Well, "speed" normally = (total distance covered) / (time to cover the distance).

In this case, we don't know the total distance that Santa has traveled, so the question can be answered only if we're willing to consider some other meaning of "speed".

Maybe we could say that in this case, "speed" means the average rate at which he visits houses. Then ...

Speed of visits = (total houses visited) / (time to visit them).

Speed of visits = (800 million houses) / (48 hours)

Speed of visits = 16.67 million houses per hour.

That's 277.8 thousand houses per minute

That's 4,630 houses per second

The nucleus is found in the center of an atom options: True False

Answers

It’s true all the way. It’s true
The answer is true...

pls help Asapppppppppp.It is due in a little bit.

Answers

C I’m pretty sure !
C , because i’m smart

2 spheres are made from the same material. One is smaller and one is larger. Is the smaller sphere made up of smaller atoms than the larger sphere?​

Answers

no because because they are made up of the same material so that means same size of atoms! I hope this helps

Answer:

No

Explanation:

It’s just made up of less atoms.

ILL MARK BRAINLEIST
Select the ALL correct sentences on the image.

Matthew throws a ball straight up into the air. It rises for a period of time and then begins to drop. At which points in the ball’s journey will gravity be the greatest force acting on the ball?

Answers

Answer:

The ball falling down

Explanation: Because once the ball starts going down it means that the applied force on the ball is no longer higher than the gravitational force on the ball.

Answer:

when the ball reaches maximum height

Explanation:

All known matter is made up of Question 1 options:
A. molecules
B. legos
C. solids
D.atoms

Answers

the answer is (a) molecules

Answer:

D. Atoms

Explanation:

You are made of matter, everything you touch is made of matter if your at a desk thats matter. Therefore the answer is Atoms

GIVING BRAINLIEST FIVE STARS AND 25 POINTS!

In your own words answer the following essay question use 5-7 sentences:
Why does a car’s engine become hot while it is running?

Answers

Answer:

Engines can overheat for many reasons. In general, it's because something's wrong within the cooling system and heat isn't able to escape the engine compartment. The source of the issue could include a cooling system leak, faulty radiator fan, broken water pump, or clogged coolant hose

Explanation:

ASAP HELP PLS

Amy has a mass of 30 kg, and she is riding a skateboard traveling 5 meters per second.

What is her momentum?


​5 kg⋅m/s​


​6 kg⋅m/s​


​30 kg⋅m/s​


​150 kg⋅m/s

Answers

Answer:

A is correct

Explanation:

Momentum is the product of mass and  velocity of the moving object. The momentum of Amy weighing 30 Kg riding with 5 m/s is 150 Kg m/s.

What is momentum?

Momentum is a physical quantity measuring the product of mass and velocity of a body. There are both linear momentum and angular momentum. Angular momentum is the momentum associated with a rotating body.

Momentum of a body increases with increase in mass and velocity.

The mass of the girl is given 30 Kg riding with a velocity of 5 m/s. Thus her momentum can be calculated as:

p = m v

  =  30 Kg × 5 m/s

  = 150 kg m/s.

Therefore, the momentum of  Amy is 150 Kg m/s.

To find more on momentum, refer here:

https://brainly.com/question/24030570

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how is mitochondria like the digestive system?

Answers

The mitochondia takes in nutrients and then breaks it down like the digestive system.

Explanation:

it’s the power house of the cell and the digestive system is where all our food and bacteria goes and decomposes so in a way they are the same because the digestive system is almost like the powerhouse of the body

help please fill in the blank
When you look at the Sun through a filtered telescope, the visible portion of the Sun appears blotchy.
These blotches are called (BLANK)
. The layer of the Sun where these occur is called the (BLANK)
.

Answers

Answer:

sunspots; photosphere

Explanation:

sun spots and photosphere.

how far can i throw a child in a walmart

Answers

Very far I’m guessing- try it out
As far as you want :D just don’t get caught

how can light from the sun cause skin cancer .​

Answers

Too much UV radiation from the sun or sunbeds can damage the genetic material (the DNA) in your skin cells. If enough DNA damage builds up over time, it can cause cells to start growing out of control, which can lead to skin cancer

PLZ ANSWER FAST WILL GIVE BRAINILEST TO FIRST PERSON WHO ANSWERS:P



Read this excerpt from Through the Looking-Glass by Lewis Carroll.

“That would never do, I'm sure,” said Alice: “the governess would never think of excusing me lessons for that. If she couldn't remember my name, she'd call me ‘Miss!’ as the servants do.”

“Well, if she said ‘Miss,’ and didn't say anything more,” the Gnat remarked, “of course you'd miss your lessons. That's a joke. I wish YOU had made it.”

“Why do you wish I had made it?” Alice asked. “It's a very bad one.”

But the Gnat only sighed deeply, while two large tears came rolling down its cheeks.

“You shouldn't make jokes,” Alice said, “if it makes you so unhappy.”

Then came another of those melancholy little sighs, and this time the poor Gnat really seemed to have sighed itself away, for, when Alice looked up, there was nothing whatever to be seen on the twig, and, as she was getting quite chilly with sitting still so long, she got up and walked on.

Question:
How does Lewis Carroll’s use of opposites appear in this excerpt?

Answers:
1#. Alice says that her governess would never excuse her from her lessons, even if she 2#. did not have a name.

3#. The gnat jokes that Alice would have to miss her lessons if the governess called her “Miss.”

4#. The gnat makes jokes, but they seem to cause him unhappiness rather than joy.

5#. The gnat disappears after he lets out one last sigh and Alice looks up at the tree.

Answers

Answer:

4

Explanation:

Answer:

D

Explanation:

How did the iron filing patterns show attractive forces between magnetic poles?

Answers

When the magnet is placed on the glass, it is attracted to the iron filings. The pattern of the iron filings shows that the lines of force that make up the magnetic field of the magnet. Also, The lines of force of north and south poles attract each other whereas those of two north poles fend off each other.

Answer:

When the magnet was placed on the glass, it attracted the iron filings. The pattern of the iron filings shows the lines of force that make up the magnetic field of the magnet. ... The lines of force of north and south poles attract each other whereas those of two north poles repel each other.

Explanation:

Hope it's answer you plz mark as breinlist !!!

PLSSSS ANSWER!!!!!!!!!!!!!
how does a balanced chemical equation represent the conservation of matter in a chemical reaction?


a. the type of matter in the products is different from the type of matter in the reactants.


b. there are more atoms in the reactants than in the products.


c. there are fewer atoms in the reactants than in the products.


d. the number of atoms of each element in the reactants equals the number of atoms of each element in the products.

Answers

Answer:

d

Explanation:

PLS HELP!!!
I HAVE 20 MINS!!
A science teacher shows his students an image of a volcanic mountain range and informs them it was created by the movement of Earth’s tectonic plates. He asks his students to explain how this occurred. Which student’s explanation is best?





Student A

An oceanic plate converged with an oceanic plate. Both plates subducted, forcing lava upward towards the surface of the Earth causing a volcanic eruption which created the mountains.

Student B

A continental plate converged with a continental plate. Neither plate subducted so lava was forced upward towards the surface of the Earth causing a volcanic eruption which created the mountains.

Student C

An oceanic plate converged with a continental plate. The more dense, continental plate sank below the less dense oceanic plate causing magma to rise up through a weak spot in Earth’s crust to create volcanic mountains.

Student D

An oceanic plate converged with a continental plate. The more dense, oceanic plate sank below the less dense continental plate causing magma to rise up through a weak spot in Earth’s crust to create volcanic mountains.



A.
Student B

B.
Student A

C.
Student C

D.
Student D

Answers

Answer:

Student B

Explanation:

I think

Answer:

student b

Explanation:

Does cereal actually make you taller?

Answers

Answer: no I don’t think so

Explanation:

Answer:

unfortunately no, cereal itself won’t help you too much with height...but it does if added with milk..since milk helps :D

An ice cube melting into water is an example of: options:
A. physical change
B. nuclear change
C. chemical change

QUESTION 2
Non-metals are found where on the periodic table?
A. Everywhere
B. Center
C. Lower left side
D. Upper right side

Answers

A. physical

D. Upper right

Answer:

1.) A, a physical change

2.) D, Upper right side

Explanation:

1.) Changing states does not atomically change the chemical build up of any object. Water is still water whether as liquid H2O, ice, or water vapor. Since it is only changing how an object looks and not the chemically make up, melting and freezing constitutes as physical changes

2.) Non-metals are elements that do no share the traits and characteristics of a metal. Most non-metals classify as a gas. This includes : helium, hydrogen, oxygen, carbon, nitrogen, and sulfur just to name a few.

Where are all these elements found on the table? The right sides of the periodic table.

What property describes the ability of a material to be flattened into thin sheets by hammering? options:
A. flammability
B. boiling point
C. ductility
D. malleability

Answers

D. malleability is the ability to bend or form something ? like if something is malleable you can bend it

Answer:

d. malleability

Explanation:

i think

what does the world sunlight map tell you about how much sunlight Australia gets compared to Brazil.​

Answers

Answer:

well i think that Australia has more sunlight than Brazil based on the map and the colors and numbers that show on the bottom  also Australia has more direct normal irradiance and has more solar coverage than other continents checks out and the sun hits Australia more cause Australia is facing the sun more i think cause for example Antarctica is very cold cause that place is not facing the sun as much as Africa, Australia and other places.

Explanation:

You focused on Brazil and Australia because the two countries receive the same amount of sunlight, but have different rates of skin cancer.

Saturn isn’t the only planet with rings, but they are the most beautiful ones.
Fact or Opinion?

Answers

Answer:

opinion

Explanation:

i could call somthing beautiful ex. a bird but call another bird ugly

How many atoms of oxygen are in the molecule: H2O2
ANSWER I WILL GIVE YOU BRAINLIES
A. 4
B. 0
C. 2.
D. 1

Answers

Answer:

C their is 2

Explanation:

Answer:

The answer is 2.

How does Earth's gravity affect the motion of the moon and satellites

Answers

Answer: well it keeps the international space station in orbits around the earth and gravity keeps the moon keep orbiting the earth

Explanation:

Answer

Gravity keeps the International Space Station in orbit around the Earth. Gravity keeps the Moon orbiting around the Earth. Gravity keeps the Earth orbiting around the Sun.

hope this helps and have a wonderful day :)

Breaking a pencil in half is an example of: options:
A. nuclear change
B. physical change
C. chemical change

Answers

b physical change :))) have a great day
b. physical change .

Read this excerpt from Through the Looking-Glass by Lewis Carroll.

“This must be the wood,” she said thoughtfully to herself, “where things have no names. I wonder what'll become of MY name when I go in? I shouldn't like to lose it at all—because they'd have to give me another, and it would be almost certain to be an ugly one. But then the fun would be trying to find the creature that had got my old name! That's just like the advertisements, you know when people lose dogs—‘ANSWERS TO THE NAME OF “DASH”: HAD ON A BRASS COLLAR’—just fancy calling everything you met ‘Alice,’ till one of them answered! Only they wouldn't answer at all if they were wise.”


What is being compared in the simile from this excerpt?

ANSWERS:

A. Alice is comparing the idea of finding a creature with her name to a missing dog poster.

B. Alice is comparing the wood where things have no names to the woods from her old world.

C. Alice is comparing losing her old name to gaining her new name.

D. Alice is comparing having a nice name to having an ugly name.

Answers

Answer:

A

Explanation:

The answer is A. :)

helpppp meeeee i'll give brainliest

Answers

answer
the second one from right to left austria- hungary
explanation
i searched it up lol

hope this helps and have a wonderful day:)
Austria Hungary I can’t give an explanation I just remembered my teacher said that once
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