What energy is formed when you put your hands together and rub them up and down rapidly

Answers

Answer 1
Your answer should be heat energy!
Answer 2

Answer:

When you rub your hands together thats mechanical energy. Once you hands warm up its heat energy.


Related Questions

Consider the following reaction: 3Fe(s) + 4H₂O(g) ➞ Fe₃O₄(s) + 4H₂(g). To answer the following question: "How many moles of hot water vapor (steam) must react to produce 275 g of Fe₃O₄?" How many steps will it take to get the answer? *
4 points
1
2
3
4

Answers

Answer: 2

Explanation:

To calculate the moles :

[tex]\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}[/tex]

[tex]\text{Moles of} Fe_3O_4=\frac{275g}{233.5g/mol}=1.18moles[/tex]

[tex]3Fe(s)+4H_2O(g)\rightarrow Fe_3O_4(s)+4H_2(g)[/tex]  

According to stoichiometry :

1 mole of [tex]Fe_3O_4[/tex] are produced by = 4 moles of [tex]H_2O[/tex]

Thus 1.18 moles of [tex]Fe_3O_4[/tex] will be produced by=[tex]\frac{4}{1}\times 1.18=4.72moles[/tex]  of [tex]H_2O[/tex]

Mass of [tex]H_2O=moles\times {\text {Molar mass}}=4.72moles\times 18g/mol=85.0g[/tex]

Thus 85.0  g of [tex]H_2O[/tex] will be required and 2 steps are required to get the answer.

How many total electrons does Fluorine have?

Answers

Answer:

nine electrons

Explanation:

Answer:

There are 9 total electrons. There is always the same number of protons and neutrons so the charge in the atom balances out. The atomic number is the number of protons, and electrons.

Explanation:

20 POINTS!!
Kinetic and Potential Energy

Answers

A ball sitting on the peak of a mountain (potential) then the ball rolling down (kinetic)

Answer:

When a ball is rolled up a hill, it has potential energy that can turned into kinetic energy. The kinetic energy would be the ball rolling down the hill.

Explanation:

Hope this helps!

How many atoms of each element are in the chemical formula Ca(OH)2? ​

Answers

1 calcium, 2 oxygen, and 2 hydrogen. :)
Calcium hydroxide, Ca(OH) 2 consists of one calcium atom (A r = 40), two oxygen atoms (A r = 16) and two hydrogen atoms (A r = 1).

Using the Assignment: Locating the Epicenter, What was the length of the radius of the circle of from the Buenos Aires station? (in cm)
Question 1 options:


3.2 cm


4.8 cm


5.76 cm


8 cm

Answers

It may be 4.8cm? Tell me if i’m wrong or right. I’m so sorry if it’s wrong.

How many liters of NO2 are in 80.0 grams at STP

Answers

Answer: answwer is22.4 L

At STP that is standard temperature and pressure 22.4 liters of NO₂ are present in 80 grams.

What is standard temperature and  standard pressure?

Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements which are established to allow comparison between different sets of data.

Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards but are the ones which are commonly used.

Standard conditions of pressure and temperature are necessary to define standard reference conditions used to express volumes of liquids and gases.

These values are important to physicists, chemists ,engineers ,pilots and navigators.

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a + c = r solve for a

Answers

Answer: A = -c + r

Explanation:

Answer:

a = r-c. its that simple I guess

Which factor can cause acceleration to decrease?

Answers

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

a metal worker uses a cutting torch that operates by reacting acetylene gas, C2H2(g), with oxygen gas, O2(g), as shown in the unbalanced equation below: C2H2(g)=O2(g)= CO2(g) = H2O(g) = heat determine the mass of 25 moles of acetylene (gram-formula mass = 26 g/mol

Answers

Answer:

650 grams

Explanation:

Given that acetylene gas reacts with oxygen to produce caobon dioxide, water and heat and the unbalnced equation is

[tex]C_2H_2(g)+O_2(g) \rightarrow CO_2(g) + H_2O(g)+ heat[/tex]

Gram-formula mass of [tex]C_2H_2= 26[/tex] g/mol

So, mass of 1 mole of acelylene is 26 grams

Therefore, mass of 25 moles of acelylene=25x26=650 grams

Hence, the mass of 25 moles of acelylene is 650 grams

The mass of 25 moles of acetylene has been 0.65 kg.

Moles are the count of a number of molecules in an entity and the mass based on the formula mass. 1 mole of a substance has [tex]\rm 6.023\;\times\;10^2^3[/tex] molecules.

The moles can be calculated as:

Moles = [tex]\rm \dfrac{weight}{molecular\;weight}[/tex]

Given, mole of acetylene = 25 mol

molecular mass of acetylene = 26 g/mol

Mass of acetylene = moles [tex]\times[/tex] molecular weight

Mass of acetylene = 25 [tex]\times[/tex] 26

Mass of acetylene = 650 grams

1000 grams = 1 kg

650 grams = 0.65 kg.

The mass of 25 moles of acetylene has been 0.65 kg.

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True or false
Equal forces acting on one object in opposite directions are called balanced forces

Answers

Answer:

True

Explanation:

Forces, equal in magnitude and opposite in direction, and cancel each other out are called Balanced Forces.

Balanced Forces DO NOT cause any change in the velocity of the object, but the Object may correspond to a change in shape or size.

Example :

Blasting a balloon by compressing it tightly with both hands, roughly with an equal force, is a practical example of Balanced Forces. In this case, the balloon before the burst stays at a state of rest and same after the burst. But the burst or the compression, causes a change in the shape of the balloon.

Many ladybird beetles live in Pedro's garden. He observed them one summer for a science project. Pedro noticed that all the ladybird beetles had red shells. Some of the beetles had many dark spots, some had only a few dark spots, and one or two beetles had no dark spots at all. Around the same time, Pedro's father replanted the garden using just red flowers. A few years later, Pedro observed the ladybird beetles again. This time he noticed that almost all the ladybird beetles had shells with more red visible. They had few or no dark spots on their shells. Pedro concluded that replanting the garden with red flowers caused a change in the ladybird beetle population. Which best explains Pedro's observations?

Answers

Answer:

No.

Explanation:

No, Pedro's observations does not suggest that replanting the garden with red flowers caused a change in the ladybird beetle population because the colour of flower has no effect on the change in the population of ladybird beetle, it must be occur due to the dominant genes present in the population of ladybird beetle. This dominant genes is responsible for the presence of more red colour on the ladybird beetles shells.

PLEASE I NEED THIS ANSWER ASAP :(
Impurities that evaporate easily and travel with the water vapor are not removed when using this type of distillation. Explain the reason for this.

Answers

Answer:

Please add as brainlist

Explanation:

Distillation is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation. Distillation may result in essentially complete separation (nearly pure components), or it may be a partial separation that increases the concentration of selected components in the mixture. In either case, the process exploits differences in the relative volatility of the mixture's components. In industrial applications, distillation is a unit operation of practically universal importance, but it is a physical separation process, not a chemical reaction.

If a metal donates or loses an electron it becomes a..
A. Ionic
B. Covalent
C. Metallic

Answers

Answer:

c

Explanation:

Answer:

the answer to your question is c

Whar is the innermost par of the bone called

Answers

Answer:

If it's what I think you're talking about, it's called marrow.

Explanation:

Hope this helped! :)

The innermost part of the bone is called bone marrow

Science hmk due tmr morning need help!! pls answer all 3 and number which one is which for example...
1.j
2.j
3.j

Answers

1) C because potential energy is always at the top first and has to most energy to speed down more.
2)A because potential energy is always at the top first
3)B because kinetic energy is when it starts to drop; so the perfect word for that is moving.

A boundary between air masses that don't move possibly causing rain for several days.

Answers

Answer:

A Front

Explanation:

A Front is a boundary between two air masses of different density, moisture, or temperature

The __________________ is the process by which gases in the atmosphere absorb and reradiate heat.

Answers

Answer:

I am sure it is the greenhouse effect

Explanation:

Answer:

the greenhouse effect

I think this is the answer. Pls correct me if I'm wrong.

Why packaging lemons in cans might not be a good idea?

Answers

it might explode and the lemon might get in your eyes or face, which I heard it hurts a lot thanks to tv shows when I was growing up.

When a candle burns, the reaction produces:
• oxygen and water
• carbon dioxide and wax
• wax and oxygen
• carbon dioxide and water vapor

Answers

Answer:

B

Explanation:

Hope this helps you

Advantages and disadvantages of solar power

Answers

Answer:

Advantakes= it is a renewable source, you can but it anywhere with sunlight

disatvantage= it cost a lot to place/replace, it uses a lot of different materials

Which is a component of John Dalton’s atomic theory?
The ratio of atoms in a compound is fixed.
The atoms of different elements are the same.
An atom is a small particle of matter that can be broken down.
A reaction can create or destroy atoms as well as rearrange them.

Answers

Answer: lol the answer is A

Explanation:

i’m just smart like that , thought i should give y’all a clue

Answer:

The ratio of atoms in a compound is fixed.

Explanation:

its a

The rate of a chemical reaction is NOT affected by which of the following:
A.temperature
B.particle size (surface area)
C.concentration
D.All of these affect reaction rates

Answers

Answer:

Option B

Explanation:

Option (B) Particle size

What are the characteristics of a neutron

Answers

Answer:

The no. Of neurons are equal to the number of protons

A long thin sample of a substance is easily bent. When the substance is placed in a n electric circuit and the switch is closed, and LED light turns on. What type of bonding holds the particles of the substance together?

Answers

Answer:

A metallic bonding holds the particles of the substance together

Explanation:

The unknown substance is a metal:

It is easily bent: This means it is ductile, as it is the case with a thin metallic metallic wire."When the substance is placed in a n electric circuit and the switch is closed, and LED light turns on." This means it easily conducts electricity. Metals are good conductors.

Yule logs are commercially available that burn with a red and green flame. What two chemicals could produce this effect?

Answers

Answer:

Strontium chloride: Makes a red flame.

Strontium sulfate: Makes a green flame.

Copper salts (such as copper sulfate or copper chloride) and barium salts (such as barium chloride or barium nitrate) can produce a red and green flame when burned.

The colors of flames are often determined by the presence of specific chemicals or elements that emit characteristic wavelengths of light when heated. In the case of red and green flames, copper and barium salts are commonly used.

Copper salts, particularly copper sulfate or copper chloride, can produce a green flame when burned. This is due to the emission of specific wavelengths of green light by excited copper ions in the flame.

Barium salts, such as barium chloride or barium nitrate, can produce a red flame when burned. The red color is caused by the emission of specific wavelengths of red light by excited barium ions in the flame.

When these two chemicals are combined in a yule log or firework formulation, they can create a visually appealing display of red and green flames. The copper and barium ions are heated and excited by the flame, releasing their characteristic colors of light. It is important to note that the production of colored flames should be done with caution and adherence to safety guidelines to ensure proper handling and disposal of chemicals.

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what happen when the nitrate of an alkali metal is heatad?

Answers

answer

Gives brown colour gas

Most nitrates tend to decompose on heating to give the metal oxide, brown fumes of nitrogen dioxide, and oxygen.

Write the name for the compound Al₂S₃

Answers

Answer:

Uh Joe stinky?

Explanation:

Answer:

Aluminum(2)sulfur(3)

Explanation:

Balance the following equations:
i. N2 + …..H2 → ….. NH3
ii. P4 + …….O2 → ….P2O5
iii. ……NaF + Br2 →…….NaBr + F2
iv. …..ZnS + …..O2 → …..ZnO + …..SO2
v. Pb(NO3)2 + …..NaCl → ……NaNO3 + PbCl2​

Answers

Hey There!_____________________________________Answer:_____________________________________

(I) [tex]N_{2} + 3H_{2} --> 2NH_{3}[/tex]

(II) [tex]P_{4} + 5O_{2} --> 2P_{2} O_{5}[/tex]

(III) [tex]2NaF + Br_{2} -->2NaBr + F_{2}[/tex]

(IV) [tex]2ZnS + 3O_{2} --> 2ZnO + 2SO_2[/tex]

(V) [tex]Pb(NO_3)_2 + 2NaCl --> 2NaNO_3 + PbCl_2[/tex]

_____________________________________Best Regards,'Borz'

i really need help please will give brainliest

Answers

Answer:

Astatine is a halogen, Nitrogen is a nonmetal, Krypton is a Nobel gas, Chlorine is a halogen and Sulfur is non metal

Explanation:

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12. Which neutral atom would most likely form an ion with a 3- charge?

Answers

Answer:

phosphorus

Explanation:

it reacts by gaining three electrons in its outermost shell to be stable

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Acolon can be used to do all of the following exceptlink two complete sentences togetherexpress a ratio of two numbersfollow the name of a person in business correspondence |separate individual items in a list Please select the correct conjugation of the verb cenar ("to dine/eatdinner") to go in the blank.Alfredo en un restaurante.cenocenacenamoscenanFill in da blank Which of the following protects the rights of the accused? a. The guarantee of a speedy trial b. The right to vote cannot be denied because of gender c. The right to sign a petition d. The right to keep and bear armsNote: I think it is a. WILL GIVE FREE BRAINLY AND 20 POINTS!!! You are at an amusement park with several friends. When it is time to leave, a friends brother offers to give you a ride. You believe you smell alcohol on his breath. What should you do and why? Identify the graphed linear equation. A) y = 5x + 2 y = 5x + 2 B) y = 5x - 2 y = 5x - 2 C) y = -5x + 2 y = -5x + 2 D) y = -5x - 2 y = -5x - 2 When a strong unity of command is present, employes are assigned to more than one manager.TrueFalse I need to know some good riddles. Can you help me out? 5. AGHI is an isosceles triangle with a vertex angle HIf the M A 12 N net force is applied to an object as it moves a distance of 3.0 m: Use theWork-Kinetic Energy Theorem to determine the object's change in kinetic energy.Enter your answer in Joules. What is the slope for the line 8x-4y=24 Even when maintaining open communication, you should not discuss ______.a.Your work habitsb.Your workloadc.Your personal lifed.Your filing system Which pair of polygons is congruent 1 and 2 3 and 4 3and 5 and 1 and 4 The diagram represents a triangle that is reduced by a scale factor of 0.4.A rectangle has a base of 6 inches and a height of 2 inches.What is the height of the original triangle? 0.8 inches2.4 inches5 inches8 inches Appliances at Discount City Store are on sale for 55% off of the original price. If the original price of a washing machine is $500, what does it cost after being reduced by 55% (before tax)? Which of these functions are linear?Choose all that apply.Ay+ 4 = 2xBy=3-x?X01234-1-0.5o-0.5-1DX-22.5wlo13.2523.52.75E-51-22F PLEAS HELP MERead the passage from a story about harvesting maple syrup. Son, I hate to leave you with those maple trees, but you know they hold half our familys income. Your brother and I are counting on you. Can you do it? James nodded solemnly, who knew what this meant, swallowed hard, and assured his father that he could manage. But he knew before it spoiled that the task of gathering and processing thousands of gallons of sap would be all but impossible. Which answers correct errors with placement of dependent clauses in the passage? Select all that apply. o James, who knew what this meant, nodded solemnly o But he knew that the task of gathering and processing thousands of gallons of sap before it spoiled o knew what this meant, swallowed hard, that he could manage assured his father o they hold half our familys income you know they hold half our familys income you know A game show awards 30 points for each correct answer and deducts 50 points for each in correct answer. A contestant answers 2 questions incorrectly and 3 questions correctly. What is his final score? Harry bought 25 pens for 1.00. Find the unit rate write point slopecan someone help me with this plz will mark brainliest and 20 points A boat travels at 15 m/s in a direction 45 east of north for an hour. The boat then turns and travels at 18 m/s in a direction 5 north of east for an hour.