. If you apply heat to the copper bar, its density will

Answers

Answer 1

Answer:

Decrease

Explanation:

Density is defined as the mass per unit volume. Density is highly influenced by temperature.

The density of metals and copper is inversely proportional to the temperature, it means density of copper decreases with an increase in temperature or when heated. This is so because when the copper is heated, the copper atoms start vibrating faster that allows the collision of atoms with each other faster and occupying more volume than before. As the copper atoms occupy more volume, the density of copper decreases.

Hence, the correct answer is "On applying heat the density of copper decreases".

Related Questions

A pizza is an example of a heterogeneous mixture. Explain why it is classified as such?

Answers

Answer:

Hi!

So, a homogeneous mixture is when the parts that make up the mixture are all mixed in perfectly evenly, so they're only appearing as one uniform substance.

In a heterogeneous mixture, the pieces are not evenly mixed. A pizza has separate parts, like the crust and toppings, so it's a heterogeneous mixture.

PWEASE REVIEW ME AND ME MATES TEEF

Answers

So the first one is yellow and the other one is white

Which organism on the geologic time scale are now extict

Answers

Answer:The Ordovician and Cambrian Periods are referred to as the "age of invertebrates", with trilobites abundant. In this period, brachiopods became more abundant that the trilobites, but all but one species of them are extinct today.

Explanation:

Which is the larger atom As or P

Answers

Answer:

I think that As is larger

what is the density of if mass equals 4.98 volume is 5

Answers

Answer:

4.98/5 = 0.996 (don't forget to add your units)

Explanation:

Density= Mass/Volume

If your mass is 4.98_ (units of measurement are missing ) and your volume is 5 (units of measurement are missing) You plug the numbers into the equation:

4.98/5= 0.996 (don't forget to add your units)

Describe the “Doppler Effect.” Explain how it is used in Astronomy in term of red shift and blue shift

Answers

Answer:

This apparent change in the pitch (or frequency) of sound is called Doppler shift. ... You see these stretched-out light waves as having a lower frequency. Since red is at the low-frequency end of the visible spectrum, we say that light from a receding star is shifted toward red, or red shifted.

Explanation:

Calculate mass of an object if its density is 22.6 g/cm3 and it occupies volume of 5 cm3.

plz answer quickly if you know the answer... i will mark you brainliest! :)

Answers

Answer:

okay so I'm confused for the 5 cm3 but all you have to do is multiply those 2 numbers

Answer:

it is 113g

Explanation:

the formula you have to use here is mass=density*volume

sooo I multiplied it for u and gave the answer

Phosphorus and molecular oxygen combine to form diphosphorus pentoxide.
Write
a) the word equation
b) the skeletal equation
c) the reactant(s)
d) the product(s)
e) what type of reaction is this?

Answers

Answer:

Explanation:

because I really want to talk to you about it when I get home

The smallest possible particle of an element is a(n)
RE
??

Answers

Answer:

An atom is the smallest particle of an element that still has the properties of that element. Atoms, in turn, are composed of subatomic particles, including negative electrons, positive protons, and neutral neutrons. The number of protons in an atom determines the element it represent

Explanation:

An antacid tablet contains 640.0 mg of magnesium oxide per tablet.
What volume of 0.1000 M stomach acid (HCI) could one tablet neutralize?

Answers

Answer:

317.6 mL

Explanation:

Step 1: Write the balanced neutralization equation

MgO + 2 HCl ⇒ MgCl₂ + H₂O

Step 2: Calculate the mass corresponding to 640.0 mg of MgO

The molar mass of MgO is 40.30 g/mol. The moles corresponding to 640.0 mg (0.6400 g) of MgO are:

0.6400 g × (1 mol/40.30 g) = 0.01588 mol

Step 3: Calculate the moles of HCl that react with 0.01588 moles of MgO

The molar ratio of MgO to HCl is 1:2. The moles of HCl are 2/1 × 0.01588 mol = 0.03176 mol

Step 4: Calculate the volume of 0.1000 M HCl that contains 0.03176 moles

0.03176 mol × (1 L/0.1000 mol) = 0.3176 L = 317.6 mL

Which organelle is marked with an X?

Answers

The Lysosome is marked with an x

Will give Brainiest if you can answer fast

Answers

Answer:

280 m/s

Explanation:

1. As an electron in an atom moves from a higher energy state to a lower energy state, the atom
(A) becomes a negative ion
(C) releases energy
(B) becomes a positive ion
(D) absorbs energy

Answers

Answer:

Explanation:

From Bohr's model of the atom, we can understand the energy transitions involved when an electron moves from one energy level to another.

An electron in an energy level has a definite amount of energy associated with it at that level. When electrons change state, they must absorb or emit the exact amount of energy which will bring them from initial to final states. When the electron is excited, it moves from the ground state to an excited state, it must must absorb energy. On returning from an excited state, energy is emitted.

(C) releases energy

From Bohr's model of the atom:

We can understand the energy transitions involved when an electron moves from one energy level to another.

An electron in an energy level has a definite amount of energy associated with it at that level. When electrons change state, they must absorb or emit the exact amount of energy which will bring them from initial to final states. When the electron is excited, it moves from the ground state to an excited state, it must must absorb energy. On returning from an excited state, energy is released or emitted.

Therefore, option C is correct.

Learn more:

brainly.com/question/13822373

is beeswax a mineral, a rock or neither

Answers

Answer:

niether

Explanation:

Beeswax is neither a mineral nor a rock it is supposed to be a heterogenous mixture.

What are minerals?

Minerals are defined as a chemical compound which has a well -defined composition and possesses a specific crystal structure.It occurs naturally in the pure form.

If a compound occurs naturally in different crystal structure then each structure is considered as a different mineral.The chemical composition of a mineral varies depending on the presence of small impurities which are present in small quantities.

Some minerals can have variable proportions of two or more chemical elements which occupy equivalent position in the crystal structure.It may also have variable composition which is split into separate species.

Physical properties of minerals include color,streak, luster,specific gravity and cleavage.

Learn more about minerals,here:

https://brainly.com/question/18078524

#SPJ5

2. Using the following data, calculate the average atomic mass of magnesium (give your answer to the nearest
.01 ) : Show all work!
Isotope: Mg Percent abundance: 78.70%
24
Isotope: 'Mg Percent abundance: 10.13%
25
Isotope:
Mg Percent abundance: 11.17%
26

Answers

Answer:

24.32

Explanation:

From the question given above, the following data were obtained:

Isotope A:

Mass of A = 24

Abundance (A%) = 78.70%

Isotope B

Mass of B = 25

Abundance (B%) = 10.13%

Isotope C:

Mass of C = 26

Abundance (C%) = 11.17%

Average atomic mass of Mg =..?

The average atomic mass of Mg can be obtained as illustrated below:

Average atomic mass = [(Mass of A × A%)/100] + [(Mass of B × B%)/100] + [(Mass of C × C%)/100]

Average atomic mass = [(24 × 78.70)/100] + [(25 × 10.13)/100] + [(26 × 11.17)/100]

= 18.888 + 2.5325 + 2.9042

= 24.3247 ≈ 24.32

Therefore, the average atomic mass of magnesium (Mg) is 24.32

Mass can be changed into energy in a ____ reaction
A)Chemical
B)Nuclear

Answers

b! is the answer please give me a thanks hehehehheheehhehehe

Lily feels tired and weak in the evenings after work. Before starting her chores, she eats dinnner. Which characteristic of life does Lily Exhibit?

Answers

Answer:

cool

Explanation:

she’s being overworked

why is soaking necessary for seed germination

Answers

Answer:

Explanation:

well it needs water like us to stay alive

HELP PLEASE
Describe and illustrate how liquids are different then the other states of matter.

Answers

Explanation:

There are four natural states of matter: Solids, liquids, gases and plasma. ... Solids also have a high density, meaning that the particles are tightly packed together. Liquids. In a liquid, the particles are more loosely packed than in a solid and are able to flow around each other, giving the liquid an indefinite shape.

in what and what no energy is used?

Answers

Answer:

Energy is used when someone is climbing while energy is not used when someone is going down the slope

The human eye cannot see anything less than 40 micrometers in size. What is this length in meters?

Answers

Answer:

0.00004

Explanation:

i dont have one its just i know

KEEP GETTING THIS WRONG PLZ HELP

Answers

Answer:

1 224.24242 kg/ m to the 3rd power

What is epithelial tissue characterized by?

closely packed cells

sarcomeres

many cell junctions

an extracellular matrix

Answers

Answer:

closely packed cells

many cell junctions

Explanation:

Answer:

A,B

Explanation:

EDGE2021

Which of these are trends of elements as you go down a group?
a.. The atomic number increases.
b ...The number of electrons in the outermost shell increases.
c ...The number of filled electron shells increases.
d...The mass and size of the atoms increase
e...The elements change from being metallic to non-metallic.

Answers

Answer:

c. the number of filled electrons shells increases

Answer:

the answer is c

As the atomic number of elements increases across a period on the periodic table, the atomic radius

Answers

Answer:

Decreases

Explanation:

Which element in period 5 has the largest atomic radil

Answers

Answer:

francium is the answer

Explanation:

It should be noted that the element in period 5 has the largest atomic radius is Francium.

What is an atomic radius?

It should be noted that an atomic radius simply means the measure of the size of the atom from the center of the nucleus.

In this case, the element in period 5 has the largest atomic radius is Francium while Helium has the smallest radius.

Learn more about atomic radius on:

https://brainly.com/question/15255548

Which is the larger atom S or K

Answers

Answer:

I'm pretty sure k

Explanation:

I'm not for sure I'm trying to help

Answer:

Potassium

Explanation:

Atomic size decreases across a Period, from left to right as we face the Table, and INCREASES down a Group, a column of the Periodic Table.

Freezing point
Where would you place this property in the Venn diagram?

Answers

For the Venn diagram, freezing water should be in the physical category (A)

I would pick A :) :)

Which among the given combinations below represent a set of isotopes?

1.40 protons and 40 neutrons
II. 41 protons and 39 neutrons
3.42 neutrons and 48 protons
4 40 protons and 42 neutrons
V. 41 protons and 40 neutrons

A. I, II, III
B. III, IV
C.1, IV and II, V
D. 1, V and II. V
E.1. V

Answers

Look for the ones with the same number of protons and different neutrons number

In Natural selection, individuals whose unique characteristics are well-suited for an environment tend to survive and produce more offspring. true or false?

Answers

Answer: True

Explanation:

Other Questions

Sometimes relative location can be more useful than absolute location.Which sentence from the article provides the BEST support for the statement above?(A) Most geographic studies begin with learning the location of places.(B) As one drives along most major highways, there are mileage signs indicating the distance to the nexttown or city.(C)(D)One can also give an address as an absolute location.Still, most of the time it's easier to just display a map or describe the relative location of a place like astate or country. Galileo Galilei discovered that Earth moved around the sun, which was the opposite of what most people believed at the time. What was the response of society's leaders to Galileo's discovery? He was celebrated by society and became a wealthy man. His discovery was ignored by society's leaders. His books were banned and he lived under house arrest. He was asked to change his theory and publish it again. PLEASE HELP QUICKLY: (FIRST ANSWER GETS BRAINLIEST)Alex bought a new television at Christmas. Now that same television costs $200 less than her purchase price. What does this example BEST demonstrate?A. income riskB. interest rate riskC. inflation risk If two angles are complementary, then they are equal to eachother.Is this true, sometimes true, or false? may we consider a person who is caring to be full of values? moral? or bot? 4(2q - 3) = 8q - 12 | one solution, no solution, or many soulutons The specific heat of silver is 0.24 J/gC. How many joules of energy are needed to warm 4.37 g of silver from 25.0C to 27.5C?A. 2.6 JB. 46 JC. 0.14 JD. 0.022 J PLEASE HELPDevinezRead these movie titles and write the subject that you would associate with each one. Remember to include the definite articles.2. Business Triumphs 3.Hidden Figures4.The Temple of the PharaohsCompltezFill in each blank with the appropriate subject or school-related expression.1. Lalgbre, cest ________ Je naime pas les maths.2. J'ai (I have) beaucoup de _____________pour mon cours de physique. Je suis trs occup!3. Aux tats-Unis (United States), 75% est une ___________ moyenne (average) un examen.5. Jadore la _______ On tudie (study) les phnomnes physiques et humains sur Terre (Earth).6.Au lyce, je mange (eat) une pizza la _________7.J'ai six_______Ils sont intressants et les profs sont sympas. Samuel needs to mail a package to his friend in New York. He places an address label with the length represented bythe function l(x) = 3x3 + 2x2 4x + 5 and the width represented by the function w(x) = x + 2.Part A: Find the area of the label.Part B: Which of the following statements are true about the area of the label? Select ALL that apply. A(x) = l(x) + w(x) The resulting polynomial for A(x) will be a 4th degree polynomial l(x) =A(x)w(x) The resulting polynomial for A(x) will have a leading coefficient of 6 A(x) = l(x) w(x) The resulting polynomial for A(x) will have a constant term of 10 need help with spanish WRITE A PARAGRAPH FOR ME PLEASE Read the excerpt from a speech by US Secretary of Education Arne Duncan. What is the speechs purpose?A. to inform the country what students are learning in their local schoolsB. to gain support for a law that would improve student achievementC. to explain the roles of teachers in creating a better learning environmentD. to support a law that requires children to begin learning at a very young age CAN SOMEONE HELP PLEASE!!!!Select the sentence that has the correct punctuation.A. His book, a soggy mass of paper, was barely recognizable.B. His book, a soggy, mass of paper was barely recognizable. Write 2 sentences about Medieval art and/or architecture.15 pointsYour answer Choose one of the formulas, i do not know which one to choose from.Explanation as well please.At the end of week one, a stock had increased in value from $5.75 a share to $7.50 a share.Find the percent of increase at the end of week one to the nearest tenth of a percent.At the end of week two, the same stock had decreased in value from $7.50 to $5.75.Is the percent of decrease at the end of week two the same as the percent of increase at the end of week one?Justify your answer. Before a licensed practical nurse can pursue a career as an advanced practice registered nurse, he or she musttake the additional undergraduate coursework necessary to become a registered nursehave three years' experience in practical nursingreceive the recommendation of at least two registered nursesnone of the above During its first year of operations, Drone Zone Corporation (DZC) bought goods from a manufacturer on account at a cost of $55,000. DZC returned $8,500 of this merchandise to the manufacturer for credit on its account. DZC then sold $43,000 of the remaining goods at a selling price of $69,600. DZC records sales returns as they occur and then records estimated additional returns at year-end. During the year, customers returned goods that had been sold at a price of $7,300. These goods were in perfect condition, so they were put back into DZCs inventory at their cost of $4,500. At year-end, DZC estimated $9,510 of current year merchandise sales would be returned to DZC in the following year; DZC estimates $5,800 as its cost of this merchandise.Required:Prepare journal entries to record DZC's transactions and estimates, assuming DZC uses a perpetual inventory system. so people that want to talk about me please don't been through enough already don't do it thanks A hairstylist schedules 1/4 hour to trim a customer's hair and 1/6 hour to style the customer's hair. The hairstylist plans to work 2 1/3 hours each day for 5 days each week. How many appointments can the hairstylist schedule each week if each customer must be trimmed and styled? What are the three biggest milestones in the evolution of film?