What are the
invisible lines
revealed by the
Iron fillings
surrounding a
magnet called?

Answers

Answer 1

Answer:

At each end of a magnet is a pole. These lines of flux (called a vector field) can not be seen by the naked eye, but they can be seen visually by using iron fillings sprinkled onto a sheet of paper or by using a small compass to trace them out.

hope it's help

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Answer 2
A magnetic field is the area around a magnet, magnetic object, or an electric charge in which magnetic force is exerted.” ... The invisible area around a magnetic object that can pull another magnetic object toward it or push another magnetic object away from it is called a magnetic field.

Related Questions

K(s)+H2SO4(aq)
——>_____+______

Answers

K2SO4 + H2

Reason :Potassium is highly reactive

Answer:

K2SO4 + H2 this is the reaction.

(Help would be greatly appreciated) What is the molarity of a solution made from 325.4g of AlCl3 with enough water to make 500.0mL?
1. 4.88g
2. 4.88M
3. 2.440M
4. 2.44M

Answers

Answer:

4.88 M

Explanation:

M = number moles/Volume (L)

MM AlCl3 = 133.34 g/mol

Volume = 500 mL = 0.5 L

number moles = mass/MM = 325.4/133.34 = 2.44 moles AlCl3

M = 2.44/0.5 = 4.88 M

1. A sample of naproxen has 6.022x10^23 naproxen molecules. How many moles is this?​

Answers

Answer:

0.99997661 moles

Explanation:

Answer:

ysys7sbssiej hsbed hdbd hdbd

Please help me on this.

Answers

True will end up being the answer

Answer: true

Explanation:

i hope this helps

Which of these compounds has the largest percentage by mass of nitrogen? NO N2O NO2 N2O3

Answers

N203 is the answer, if i am wrong im sorry!

The largest mass percentage of nitrogen in NO. Therefore, option (A) is correct.

What is the mass percentage?

The percentage by mass of an element in a chemical compound can be described as the number of parts by mass of the element contained in 100 parts by mass of a chemical compound.

The mass percentage of an element can be determined in two steps:

First, calculate the molar mass of the compound and then the percentage of each element by dividing the total mass of the element present in the compound by the molecular mass of the compound multiplied by 100.

Given, the molecular formula of the compound is NO.

The molecular mass of the NO = 30 g/mol

The mass percentage of the Nitrogen = (14/30) × 100 = 46.67 %

the molecular formula of the compound is NO₂.

The molecular mass of the NO = 46 g/mol

The mass percentage of the Nitrogen = (14/46) × 100 = 30.4 %

the molecular formula of the compound is N₂O.

The molecular mass of the NO = 44 g/mol

The mass percentage of the Nitrogen = (14/44) × 100 = 31.81 %

the molecular formula of the compound is N₂O₃.

The molecular mass of the NO = 76 g/mol

The mass percentage of the Nitrogen = (28/76) × 100 = 36.84 %

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which of the following has more particles
6.02x10(small numbers)23 molecules CO2
9 moles PF2
10 mole NaCI
18 g H2O

Answers

Answer:

A mole is Avogadro's number of items: 6.022 × 1023.

Explanation:

At equilibrium at 2500K, [HCl]=0.0625M and [H2]=[Cl2]=0.00450M for the reaction H2+Cl2 ⇌ HCl.
a. Determine the balanced equation and write the equilibrium expression
b. Determine the K eq
c. Will this process favor the reactants or products at equilibrium?

Answers

Answer:

a. [tex]H_2+Cl_2 \rightleftharpoons 2HCl[/tex]

b. K = 192.9

c. Products are favored.

Explanation:

Hello!

a. In this case, according to the unbalanced chemical reaction we need to balance HCl as shown below:

[tex]H_2+Cl_2 \rightleftharpoons 2HCl[/tex]

In order to reach 2 hydrogen and chlorine atoms at both sides.

b. Here, given the concentrations at equilibrium and the following equilibrium expression, we have:

[tex]K=\frac{[HCl]^2}{[H_2][Cl_2]}[/tex]

Therefore, we plug in the data to obtain:

[tex]K=\frac{(0.0625)^2}{(0.00450)(0.00450)}\\\\K=192.9[/tex]

c. Finally, we infer that since K>>1 the forward reaction towards products is favored.

Best regards!

Why is chemistry important? i need 2 paragraph please

Answers

It is important because 1 plus one is 2 and 2 plus 2 is 4

Which statement describes the differences between chemical reactions and nuclear decay rates? Chemical reaction rates vary, but nuclear decay rates are constant. Both chemical reaction rates and nuclear decay rates vary. Nuclear decay rates vary, but chemical reaction rates are constant.

Answers

Answer:

Answer the last one Nuclear decay rates vary, but chemical reaction rates are constant

Explanation:

Correct me if im wrong

Answer:

Chemical reaction rates vary, but nuclear decay rates are constant.

Explanation:

gradepoint

Which of the following statements is true?

Answers

the answer is the third one

Explanation:

it just is I think

Does liquid detergent conduct electricity?

Answers

Answer:

Yes, it is a good conductor of electricity.

Explanation:

They allow electric particles to pass through them (the bases).

(Hope this made sense)

Which of the following factors would affect the rate at which the stages of death happen

A.Humidity
B.Temperature
C.If the person was sick
D.All of the choice would affect the rate

Answers

All of the choices would affect the rate
D. all of the choices

The battery gets it's energy from the​

Answers

Essentials. A battery is a device that stores chemical energy and converts it to electrical energy. The chemical reactions in a battery involve the flow of electrons from one material (electrode) to another, through an external circuit. The flow of electrons provides an electric current that can be used to do work.

If I touch a hot object, my hand gets hot through which type of heat transfer?

Answers

Answer:

Thermal Transfer.

Explanation:

If you touch a hot object, the heat is transferred from the object to your hand through conduction. (This is the actual answer.)

specific heat is defined as the amount of heat in what

Answers

Answer:

Specific heat is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature.

Explanation:

Answer:

Specific heat is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature.

Explanation:

Give examples which indicate that nylon fibres are very strong.​

Answers

Explanation:

is used for making ropes, used for climbing rocks and for making parachutes. Their usage shows that nylon fibres have high tensile strength

True or false The force of gravity acting on an object is measured by weight.

Answers

Answer:

true

Explanation:

we need gravity to stay on ground

Answer:

True.

Explanation:

Weight in a physics or scientific sense is defined mathematically as "mass times gravity." It is literally a measure of the force of gravity pulling mass downward towards Earth (or whatever object you're considering).

Which equation would be used to calculate the rate constant from initial
concentrations?

Answers

Answer: B

Explanation: I just did it

The equation for calculation of rate constant from initial concentration will be k= rate / [tex][A^{m}] [B^{n}][/tex]

What is rate constant?

The proportionality variable in the expression represents the link between both the rate of a reaction as well as the concentrations of the reacting components often called the rate constant, sometimes specific rate constant.

What is equation?

A chemical reaction is represented by a word equation that uses the identities of the substance present.

The equation for calculation of rate constant from initial concentration will be k= rate / [tex][A^{m}] [B^{n}][/tex].

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Which statement about the organisms whose fossils are found in the rock is correct?
A.) Organism W existed much before Organism Y.
B.) Organism Y existed over the longest period of time.
C.) Organism Y and Organism U were alive over the same time span.
D.) Organism W existed over a shorter period of time than did Organism X. The table below shows the fossils of organisms found in various layers of an undisturbed rock:

Answers

Answer:

a?

Explanation:cause if organism w is a fossil and organism y is a rock the rock is way older than a fossil so a

Answer:

the answer is C

Explanation:

just did the test and Y, and U are in the same layer...so both were alive over the same time span.

The chemical equation below represents a reversible reaction.

H2PO4- + H2O ↔ H3PO4 + OH-

Which pair represents an acid and its conjugate base?

Answers

Answer:b

Explanation:

bc

In the given chemical equation, H₃PO₄ is an acid while it's conjugate base is OH⁻.

What is chemical equation?

Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.

A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .

The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.

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According to Banquo, the King "Sent forth great largess to your offices." What
gift does King Duncan bring for Lady Macbeth?

Answers

Answer:

Diamond

Explanation:

The answer is gotten from Act 2, Scene 1 of the play by Shakespeare titled "Macbeth". In this scene, we see that Banquo met Macbeth late in the night where they had a profound conversation about the gift of diamond which king Duncan had given to Banquo to deliver to Macbeth.

Please help me on this exsam question ASAP!!! Please

Answers




Well insulated houses use less energy to keep them warm. This means that less carbon dioxide, a greenhouse gas, is released into the atmosphere from burning of fossil fuels (coal, oil and gas) in our power stations and central heating boilers. Global warming is occurring because large volumes of greenhouse gases – including carbon dioxide – are accumulating in the Earth’s atmosphere. This causes the planet’s average air and ocean temperatures to increase and sea levels to rise, resulting in increasingly severe weather conditions. This effect is called climate change and it’s already happening. By improving the insulation of your home, you will be playing your part in reducing the effect of global warming.

what would happen if organ systems failed to work together​

Answers

Answer:

If the organ systems do not work together, then homeostasis is not maintained. If homeostasis is not maintained, the cells of the body will not work properly. As a result, the body will not work properly.Feb 4, 2017

Explanation:

Answer:

If the organ systems do not work together, then homeostasis is not maintained. If homeostasis is not maintained, the cells of the body will not work properly. As a result, the body will not work properly.

Explanation: Edge 2020 :)

It late, I need help quick

Answers

Answer:

what is late ? there is no attachment ?

Answer:

For people asking for the questions

Explanation:

I need help! Please & Thank you!

Answers

Answer:

I think it is B

Explanation:

SCIENCE QUEASTION I PUTED IT IN CHEMISTRY BECAUSE BRAINLY HAS NO SCIENCE WILL MARK BRAINLIEST
Pls Help With these 2

#1 Which description most accurately describes what weather is?

The long term average of temperatures at a location
or
The condition of the atmosphere at a certain time and certain place

#2 When air reaches 100% relative humidity or the point of saturation, what does that mean? *

The rate of evaporation is GREATER THAN the rate of condensation
or
The rate of evaporation is EQUAL to the rate of condensation
DONT POST LINKS

Answers

#1: Weather is best described by the second option—“the condition of the atmosphere at a certain time and certain place.”

#2: When air is saturated (that is, the relative humidity is 100%), the rates of evaporation and condensation are equal. Thus, the second option would be correct here.

Question 1
Which of the following is a false​

Answers

Answer:

1.A 2.C 3.B

4. d

Explanation:

What is a disadvantage for reasons undergoing asexual reproduction

Answers

Answer: All the offspring are genetically identical and may not have the genetic variation to survive in new or different conditions.

Elements in a convolent bond are called ?

Answers

Answer:

A covalent bond is formed by an equal sharing of electrons from both the participating atoms. The pair of electrons participating in this type of bonding is called shared pair or bonding pair. The covalent bonds are also termed molecular bonds.

Which of the following is an example of acceleration?
A. A boat sits on a boat trailer.
B. A car moves in a straight line at 60 km/hr.
C. A plane moves in air at a steady speed of 850 km/hr.
D. A bus moves on a straight road and then
makes a right turn.

Answers

Answer:

it's either B. or C.. hope this helps!

Explanation:

Answer:

D. A bus moves on a straight road and then  makes a right turn.

Explanation:

Acceleration is a change in direction or speed. All of the other examples involve straight lines or constant speed.

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