Hardness is the measure of a mineral's resistance to scratching.

True
False

Answers

Answer 1

Answer:

The answer to the question is true.

Answer 2
the answer is true

Related Questions

The type of potential energy related to an object's height

Answers

Answer:

the answer is gravitational potential energy

Answer:

Since the gravitational potential energy of an object is directly proportional to its height above the zero position, a doubling of the height will result in a doubling of the gravitational potential energy. A tripling of the height will result in a tripling of the gravitational potential energy.

Explanation:

Hope this helps?

A falling ball looses its shape and bounces off the ground because it has...Immersive Reader


Kinetic energy

Potential energy

Elastic energy

Thermal energy

Answers

Potential energy or Kinetic energy

How does shaking or stirring a mixture of solute and solvent affect a solution?
CA. It increases the solubility of the solute.
CB. It increases the rate of dissolving.
C C. It decreases the solubility of the solute.
D. it decreases the rate of dissolving.

Answers

I know this one it’s B

Thermal energy that encounters greenhouse gases cannot escape the atmosphere? Yes or no

Answers

Answer:

Yes

Explanation:

The point of greenhouse gases is that it absorbs and emits radiant energy within the thermal infrared range and causes it to be trapped.

Find a part of the article that describes signals that are sent within Diego’s body. Where does the signal come from, and how does it cause Diego to feel or react?

Answers

Answer:

The sensory receptors send signals to Diego's brain cells. These signals are messages that help Diego figure out what to do next. As Diego thinks, more signals move from one brain cell to another.

The sensory receptors send signals to Diego's brain cells. These signals are messages that help Diego figure out what to do next. As Diego thinks, more signals move from one brain cell to another.

What are sensory receptor?

The capacity to react to stimuli is one of the traits of a living thing. The highly developed sensory system of humans can concurrently analyze thousands of incoming messages.

Dendrites of sensory neurons are specialized for receiving particular types of stimuli and are known as sensory receptors. There are three ways to classify sensory receptors.

Exteroceptors are located at or close to the skin's surface and are responsive to stimuli coming from the outside or the body's surface. These receptors include those for vision, hearing, smell, and taste as well as those for touch, pain, and temperature.

Therefore, The sensory receptors send signals to Diego's brain cells. These signals are messages that help Diego figure out what to do next. As Diego thinks, more signals move from one brain cell to another.

To learn more about sensory receptors, refer to the link:

https://brainly.com/question/3190796

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Copper has a specific heat of 0,900 J(g C). How much energy in kJ is needed to raise the temperature of a 700 g block of aluminum from 30.7°C to 82,1C?(show your steps)

Answers

Answer:

32.4 kJ

Explanation:

Given that:

Specific heat capacity fo copper, c = 0.9

Mass of copper, m = 700 g

Temperature change, dθ ;t2 - t1 = (82.1 - 30.7) = 51.4

Energy required, E = mcdθ

E = 700 * 0.9 * 51.4

E = 32382 J

Energy required on kJ

32382 / 1000

= 32.382 kJ

= 32.4 kJ

3. What is the difference between prodation and competition?
a. Competition is the demand for the same resource, precision is when one
organism eats another
b. Competition is when one organism eats another, predation is the demand for the
same resource
C. Competition always ends with one organismiling another, while predation is
when one organism just harms another
d. None of the above

Answers

B is the answer correct

You pump 100 gas particles in Basketball A and 100 gas particles in Basketball B. both basketballs are at room temperature ¿Which basketball will be more firm? ¿And Why?

Answers

Answer:

I think the answer is probably b

Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, ml, and ms)


2, 2, -1, -1/2


3, 3, 3, 1/2


3, 3, 3, -1/2


5, 4,- 5, 1/2


2, 1, 0, 1/2

Answers

First, since l = n-1,
5,4,-5,1/2 and 2,1,0,1/2 are the only answer choices left.
Next, since ml = -l to l,
2,1,0,1/2
is the answer because in 5,4,-5,1/2, the ml value of -5 is not in the range of -4 to 4, as notes by the value 4 for l.

describe which process in the water cycle the water in each picture will go through next will go through next.

Answers

Answer:

water vapour I guess I the answer of your question

why do you think season will impact the size of a rabbit population​

Answers

They would get out of there burrows in around spring when they are mostly out and the start reproducing

Kevin is working on a model that shows the positions of Earth, the Moon, and the Sun during the phases of
the Moon. How should he position them to show a New Moon?

Answers

Answer:

Explanation:what’s the answer

Answer: A. With Earth between the Moon and the Sun.

Explanation:

How many moles of ethanol are produced starting with 500.g glucose?

C6H12O6 → 2 C2H5OH + 2 CO2

Answers

Answer:

5.55 mol C₂H₅OH

General Formulas and Concepts:

Math

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Chemistry

Atomic Structure

Reading a Periodic TablesMoles

Stoichiometry

Using Dimensional AnalysisAnalyzing Reactions RxNExplanation:

Step 1: Define

[RxN - Balanced] C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂

[Given] 500. g C₆H₁₂O₆ (Glucose)

[Solve] moles C₂H₅OH (Ethanol)

Step 2: Identify Conversions

[RxN] 1 mol C₆H₁₂O₆ → 2 mol C₂H₅OH

[PT] Molar mass of C - 12.01 g/mol

[PT] Molar Mass of H - 1.01 g/mol

[PT] Molar Mass of O - 16.00 g/mol

Molar Mass of C₆H₁₂O₆ - 6(12.01) + 12(1.01) + 6(16.00) = 180.18 g/mol

Step 3: Stoichiometry

[DA] Set up conversion:                                                                                 [tex]\displaystyle 500 \ g \ C_6H_{12}O_6(\frac{1 \ mol \ C_6H_{12}O_6}{180.18 \ g \ C_6H_{12}O_6})(\frac{2 \ mol \ C_2H_5OH}{1 \ mol \ C_6H_{12}O_6})[/tex][DA} Multiply/Divide [Cancel out units]:                                                         [tex]\displaystyle 5.55001 \ mol \ C_2H_5OH[/tex]

Step 4: Check

Follow sig fig rules and round. We are given 3 sig figs.

5.55001 mol C₂H₅OH ≈ 5.55 mol C₂H₅OH

what grade percentage is developing, proficient, exceeding, and emerging?​

Answers

Answer:

Grade A is the best percentage that is developing, proficient, exceeding, and emerging

What is the purpose of the scientific method?

A. To use an experiment to test a scientific theory

B. To make a guess in order to prove a hypothesis

C. To remove any source of bias in an experiment

D. To provide a reliable answer to a specific question

Answers

Answer:

B. To make a guess in order to prove a hypothesis.

Explanation:

D. To provide a reliable answer to a specific question

What does Ra Ra Ah Ah Ah Ro Ma Ro Ma Ma Ga Ga O La La mean?

Answers

Answer:

They are symbols of elements.

Ra is the symbol of the element Radium

Ah is the symbol of the element Arrhenium

Ma  is the symbol of the element Molybdenum

Ga  is the symbol of the element Gallium

La  is the symbol of the element Lanthanum

Answer:

Ra is the symbol of the element Radium

Ah is the symbol of the element Arrhenium

Ma  is the symbol of the element Molybdenum

Ga  is the symbol of the element Gallium

La  is the symbol of the element Lanthanum

Explanation:

They are elements

PLEASE HELP ME PLEASE!!

Answers

Answer:

1: f 2: b 3: d 4: e 5:a 6:c

Explanation:

Which materials allow electrons to flow through them?
A. Insulators only
B. Semiconductors and conductors
C. Conductors only
D. Semiconductors and insulators

Answers

The materials which allow electrons to flow through them are Semiconductors and conductors. Hence Option (B) is correct.

What are conductors ?

A conductor, or electrical conductor, is a substance or material that allows electricity to flow through it.

In a conductor, electrical charge carriers, usually electrons or ions, move easily from atom to atom when voltage is applied.

Therefore, The materials which allow electrons to flow through them are Semiconductors and conductors. Hence Option (B) is correct.

Learn more about Conductor here ;

https://brainly.com/question/8426444

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Answer:semiconductors and conductors

Explanation:

Question 2 (1 point)
(02.01 LC)
Which scientist proposed the model of an atom as a solid sphere? (1 point)

John Dalton

Niels Bohr

Ernest Rutherford

William Crookes

Answers

Answer:

John Dalton

Explanation:

Both John Dalton and Democritus thought that the atom was an indivisible sphere until J.J. Thompson came out with the plum pudding model. Hope I helped!


One of the following is not a physical property of iron.
Mark only one oval.
malleability
magnetism
rusting
color

Answers

Answer:

Rusting

Explanation:

Rusting is oxidizing iron, which would be a chemical property.

I need help please with the drop down menus

Answers

Answer:

When the archer releases the arrow, the elastic potential energy in the bowstring transforms into kinetic energy for the arrow.

Explanation:

When the string of a bow and arrow is pulled from equilibrium, the elastic potential energy in the bow is converted to kinetic energy of the arrow when the string is released.

hi, if your looking for extra points (50+) and brainiest here is ur chance, answer this question correctly plz

Answers

Answer:

Answer choice 'C'

Explanation:

As the ball slows after kicking generates maximum Kinetic Energy, the ball slows due to its Kinetic Energy being transferred to surroundings because of atmospheric and surface friction until it stops in a state of static equilibrium.

either c or a
sorry if im wrong, but im sure its either one.

Increased concentrations of greenhouse gases will lead to HIGHER global temperatures.

True
or
False

Answers

Answer:

[tex]\huge\boxed{\sf True}[/tex]

Explanation:

If the concentrations of greenhouse gases keep increasing, They will absorb more and more long wave energy coming from the sun and radiating from the earth's surface and thus will cause an increase in temperature.

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on nine comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you

a furnace is thermal energy

A. True
B. False

Answers

Answer: true

Explanation:

Thermal efficiency of process heating equipment

A. True
It is thermal energy because it is used to heat air which it’s forced into system of ducts and registers.

Rock is driven underground and changed by heat and pressure. This describes
what?
a. Igneous changing to sedimentary
b. Metamorphic changing to sedimentary
C. Sedimentary changing to metamorphic
d. Sedimentary changing to igneous

Answers

Answer:

Explanation:

metamorphic

B is the answer I think

State the coefficient required to correctly balance the following chemical equation:
__KCI + __Fe —-> __FeCI2+ __K

Answers

Answer:

2KCl+Fe---->FeCl2+2K

Explanation:

You can observe that the no.of atoms in reactant side is equal to that of products side of each element.

find the number of molecules in 35.20 g of nitrogen dioxide

Answers

Answer:

4.584*10^23 molecules

Explanation:

Find molar mass of nitrogen and oxygen on periodic table.

find molar mass of nitrogen dioxide

use this to find moles of nitrogen dioxide

multiply by avagadros number

find molar mass by dividing grams by molar mass of nitrogen dioxide, then multiple by avogadro’s number to find number of molecules. 4.61 x 10^23 molecules. 3 sf

4. What is the specific heat of a substance if 5800 joules is
released in a 250 gram sample that will cool the substance from
60 degrees to 45 degrees?

Answers

Answer: 23.2

Explanation:

HELPPP HURRY FIRST GET BRAINLEST The rusting of steel wool occurs when the iron in the steel wool combines with what substance?

carbon dioxide
hydrogen
nitrogen
oxygen

Answers

Answer:

iron oxide. aka. oxygen

Explanation:

Rust is the result of a chemical reaction between iron and oxygen, otherwise known as iron oxide. Since steel wool -- and steel in general -- is largely made of iron, steel wool is prone to rust if it doesn't have a rustproof coating on it. The actual reaction that creates rust happens when two iron atoms mix with three oxygen atoms in water; the oxygen bonds to the metal, and a new compound is formed.

which is the best explanation for why organisms must meet their needs for resources?
a. So they can have more entertainment.
b. So they can survive and reproduce.
c. So they can continue sleeping all day.
d. So they can swim and fly faster.

Answers

Answer:

B

Explanation:

A isnt correct because animals have no emotions

C isnt correct because animals dont sleep all day

D isnt correct because not all organisms can swim or fly

B makes the most sense

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Graph the linear equation. Find threepoints that solve the equation, thenplot on the graph.3x - 4y = -18 who is the speaker of "give me life or give me death" If you know about this and know the answer than answer plz if not don't answer :)how does the trail of Death change Equa-Ke-Sec's life? Divide 144g in the ratio 7: 11 Use A=Pe^rt to solve Find the accumulated value of an investment of $3000 at 4% compounded annually for 12 years.A) $4618.36B) $4320.00C) $4440.00D) $4803.10 Reread this sentence from paragraph 7. Click on thedefinition that gives the correct connotation of the word strove.Humans had been instrumental in driving George'ssubspecies close to extinction and then strove to doeverything thay could to save it.A) tried for the first time or began anattemptB) tried as an experiment or test tosee what would happenC) tried with great effort againstdifficultiesD) tried in an attempt to prove thatsomething is true The probability that Jessica will strike oil is 18%. If she drills 14 wells, find the probability that she will make exactly 4 strikes. Yes thats right. MORE TRIG :) Which statements are true about the function? Question 5 of 25The image shows devices that convert solar energy into electrical energy.What is one advantage of using these devices in place of a nuclear powerplant?A. They have lower greenhouse gas emissions.B. They are more reliable, C. They take up less space,D. They produce less hazardous waste.Activat Please help me!!! Im really struggling! 20% of __ is 15 pls help lol what is the answer to this[tex]72 \div 9[/tex] i got a 100% in health on my test The value of y varies directly with x, and y = -2 when x = -4. Find y when x = 8. The above painting is Michelangelo Buonarroti's, Last Judgement. What is/was the source of inspiration forpainting? What does the painting depict?Save and ExitNext Please give me the correct answer.Only answer if you're very good at math.Please don't give a link to a website. 9) When you convert units, the unit in thenumerator of the first fraction needs to gointo the of the second fraction,(A) denominator B) numerator helppppppppppppppppp A data set has these values: 7,9,9, 11, 11, 11, 11, 13, 13, 15. A histogram ofthe distribution is shown.4Which statement does not describe the data set?3Frequency2A. It has a range of 16.B. It has a median of 11.06 8 10 12 14 16c. It has a mode of 11.OD. It is symmetric.