A student wants to heat a piece of iron so that its temperature rises by 20 degrees C. What information does she need about the iron to plan the experiment? A.)Temperature.
B.) Mass. C.) Conductivity. D.) Surface area.

Answers

Answer 1
Mass................
Answer 2
The answer would be B: Mass. :-)

Related Questions

In some parts of the world hurricanes are called typhoons. The map below shows where typhoons form and the paths they usually follow. Typhoons do not generally form in the area at X. What is missing in area X that would allow typhoons to form there?

Answers

Answer:c warm ocean water

Explanation:

Answer C salty ocean water

Water waves are surface waves. The energy of the waves moves


only perpendicular to the motion of the wave.


both parallel and perpendicular to the wave.


only parallel to the motion of the wave.

Answers

Answer:

B

Explanation: I don't know but its B

Answer:

B

Explanation:

In what way are liquids different from solids?
Group of answer choices

Liquids do not have a fixed shape; solids do

Liquids are always denser than solids

Liquid molecules are lighter than solid molecules

Liquids are made of atoms: solids are made of molecules

Answers

Answer:

a. Liquids do not have a fixed shape; solids do

Explanation:

I’m really sorry thats the only one I for sure know that is true...

A. Liquids do not have a fixed shape; solids do”

Ill give brainliest and a 5 star review for the best answer Do you think your town or neighborhood has an ecosystem? If you don’t think so, explain why not. If you do think so, what are the producers, consumers, and decomposers in the ecosystem? What roles do humans play in this ecosystem?

Answers

Answer:

it depends if you live by a lake yes fish,bigger fish,biggest fish,then humans eat them. But if not then no ecosystem without food and animals  

Explanation:

factttttttttttssss

In which situation would the atoms in an object begin to move closer together during a phase change?
Group of answer choices

heat is removed as a gas turns into a liquid.

heat is removed as a liquid turns into a gas.

heat is added as a liquid turns into a solid.

heat is added as a solid turns into a gas.

Answers

the 1 st one you said i think

When heat is removed as a gas turns into a liquid. In liquid state molecules are more  closer than in gases. Hence, option a is correct.

What is a phase change ?

The interconversion between states of matter is called phase change. The conversion of solid to liquid, liquid to gas, etc. are examples of phase changes.

In solid state, particles are closely packed and cannot move apart. The strong intermolecular forces can be weaken by applying energy. In liquid state, particles have some more space to low and in gases they are far apart.

When gases phase converts to liquid, the heat is removed from the system and make make the intermolecular forces stronger to bring molecules closer.

Find more on phase changes:

https://brainly.com/question/29427284

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Eukaryotic gene expression is regulated during transcription and RNA processing, which take place in the nucleus, and during protein translation, which takes place in the cytoplasm. Further regulation may occur through post-translational modifications of proteins.

Answers

Answer:

Ok, is this a true and false question? Anyways, yes. the central dogma, from dna transcription to mRNA translation to proteins. and further regulation can occur through post-translational modifications of proteins. it is a true statement

Explanation:

Can someone help me is done at 6m Please help

The variability of living organisms, including within or between species or ecosystems is called?

Answers

Biodiversity I believe I had the same work and the teacher said it was biodiversity so that’s most likely the right one or my teacher lied

Answer:

Biodiversity

Explanation:

Can someone plz help me because i dont know how to do this.

Answers

Answer:

They curve in opposite directions because of one reason(s) latitude and longitude. Because these are different places, they will experience different weather conditions based on how far they are from sea level.

Explanation:

pls i need help with this vocab pls! ASAP

Answers

1. phototropism

2. geotropism

3. tropism

4. biome

5. symbiosis

6. cortex

1. 2. 3. 4.
5. it’s what the person above me said

(NО LINKS,NО TAKEING PОINTS) CОMPLEТE ТHE HOLE THING!!!
1.Which twо of the following оrganisms are prоducers in this fоod web?
Bilberry and brоwn lemming
bilberry and grizzly bear
bilberry and beаr sedge
2. Which animal is а 4th level cоnsumer (аpex predator)?
Earthwоrm
caribоu
rough legged hawk
brown lemming
3.Which animal is a primary consumer?
snоwy оwl
brоwn lemming
shоrt-tailed weasel
lichen
4.Which arrоws shоw matter mоving frоm a prоducer tо a primary consumer?
(choose the answer in the picture below)

Answers

Answer:

1. bilbery and leming

2. brown lemming

3. snowy owl

4. cant see the picture

Explanation:

D,C,D I’m pretty sure

help i'll give brainliest help with number 13 and 14 please

Answers

Answer:

ice:1

iceberg:2

water:3

lake:4

boiling water:5

Explanation:

A galaxy contains stars, gas, and dust. This matter must be held together or the galaxy will break apart. What is responsible for holding the stars, gas, and dust together in a galaxy?

Answers

gravity is responsible !

The octet rule states that atoms will gain, lose, or share valence electrons to get a full outer shell (orbital). Explain in your own words why this is an important rule to determine types of chemical bonds
someone pls help me i need it by today ty :)

Answers

Answer:

In covalent bonding, the octet rule is important because sharing electrons gives both atoms a full valence shell. As a result, each atom can consider the shared electrons to be part of its own valence shell.

np :)

In covalent bonding, the octet rule is important because sharing electrons gives both atoms a full valence shell.

What are chemical bonds?

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds.

The octet rule states that atoms are at their most stable when they have the electron configuration of a noble gas.

This means having eight outer shell electrons. Because of this, atoms tend to try and gain or lose electrons until they have eight electrons in their outer shell.

As a result, each atom can consider the shared electrons to be part of its own valence shell.

Learn more about the chemical bonds here:

https://brainly.com/question/6071754

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Water travels through many different pathways within the hydrologic cycle. For example, water vapor in the atmosphere could condense into clouds, fall to Earth’s surface as precipitation, and then accumulate in a pond. If a horse drinks the water in the pond, which of the following is a likely next step for that water in the hydrologic cycle?

A.
The water will be permanently trapped and reused inside the horse's body.
B.
The water will be absorbed by the horse's skin and turned into carbon dioxide.
C.
The water will evaporate from the horse's stomach into the air.
D.
The water will leave the horse when the horse sweats or urinates.

Answers

It would most likely be D because that’s how most of the things would be processed but sorry if I’m wrong.

Answer:

D

Explanation:

it's probably D because that what happens with every living creature. The other options don't make sense.

Hope it helps :)

The Earth's Layers

Options


Inner Core


Outer Core


Lithosphere


Mantle


Oceanic Crust


Asthenosphere


Continental Crust

Answers

Continental Crust,Mantle,Oceanic Crust,Outer Core

9.Inner core
10. Outer Core
11. Lower Mantle
12. Upper Mantle
13. Crust

Plants and animals that survive in their environment reproduce and pass on their genes. In their turn, their offspring that survive will reproduce and pass on their genes. What is this concept called?

Answers

It’s called the Evolution
answer is evolution

Water travels through many different pathways within the hydrologic cycle. For example, water vapor in the atmosphere could condense into clouds, fall to Earth’s surface as precipitation, and then accumulate in a pond. If a horse drinks the water in the pond, which of the following is a likely next step for that water in the hydrologic cycle?

A.
The water will be permanently trapped and reused inside the horse's body.
B.
The water will be absorbed by the horse's skin and turned into carbon dioxide.
C.
The water will evaporate from the horse's stomach into the air.
D.
The water will leave the horse when the horse sweats or urinates.

Answers

I feel like that answer would be d because that’s how most of the things would be processed but sorry if I’m wrong. Lol

What are substances made of?

Answers

Answer:

Explanation:

A substance is a pure form of matter that is only made up of one type of atom.

Plz help, asap, no links and don't put answer if you don't know. Explain also!
True or False: Ice caps in Greenland are composed of salt water.
True or False: Over time, the average ocean salinity has decreased.

Answers

Answer: D

Explanation: Since one of the snakes food sources is the shrew, cutting it off would limit the snake's food causing the population to decrease.

Which is a better thermal conductor?
1. Wood
2. Metal
3. Glass
4. Plastic

Answers

Answer:

2. metal

Explanation:

metal makes a good thermal conductor

Metal because it’s the best thermal conductor

Please help i need this as soon as possible

Answers

Answer:

1. 1, 3, 2

2. 2, 2, 3

3. 2, 1, 2, 1

4. 2, 1, 2

Three examples of physical change are ______________.
Group of answer choices

pond freezing, breaking glass, a burning candle

boiling water, a nail rusting, a melting candle

applying lipstick, making lemonade, baking bread

melting ice, mowing the lawn, carving a statue

Answers

It’s the 1st, 2nd, and 5th answers
A pond freezing is definitely one

help i'll give brainliest! help with 15 just make the answer clear please

Answers

Answer:

A thermal battery could help a solar power plant generate electrical energy 24 hours per day by storing the energy the solar power plant made so that when it's either a cloudy day or night the energy that the thermal battery collected can be released and used at night or on that cloudy day.

Explanation:

Answer:

A thermal battery could help a solar power plant generate electrical energy 24 hours per day by storing the energy the solar power plant made so that when it's either a cloudy day or night the energy that the thermal battery collected can be released and used at night or on that cloudy day.

this is correct my teacher accepted this as the answer.

Explanation:

Darwin was one of the first scientists to express the idea that organisms change over time and that all modern species developed from earlier kinds of life. What is this theory called?

Answers

It’s called the Natural selection

How many atoms of each element are chemical formula: 3K2O3.
How many atoms of each element are chemical formula: 2H3NCH3Br.
How many atoms of each element are chemical formula: 4Ar2CO3.
Each of them are different questions pls help me!!! I need to get this right to bring my grade up from a C to an A!!!

Answers

Answer:

In 3K2O3 - 6 K atoms, 9 O atoms

In 2H3NCH3Br - 12 H atoms, 2 N atoms, 2 C atoms, 2 Br atoms

In 4 Ar2CO3 - 8 Ar atoms, 4 C atoms, 12 O atoms

Explanation:

All you need to do is multiply the coefficient by the number of each atom in the compound. For example, H3NCH3Br has 1 nitrogen, 1 carbon, 1 bromine, and 6 hydrogens. If you have 2H3NCH3Br, just multiply all those numbers by 2.

3k2o3 = 15

2h3nch3br = 17

4ar2co3 = 24

How to grow geodes crystals?

Answers

Answer:

They will need to be just a touch larger than your eggshells. We loved the glass bowls because it was so much easier to watch the growth process. Carefully crack several eggs and scramble the innards for lunch. Take your shells and wash them gently under warm water.

Explanation:

Explanation:

Pour about a half cup of hot tap water into a cup.

Stir in alum until it stops dissolving. ...

Add food coloring, if desired. ...

Set your eggshell or plaster geode inside a cup or bowl. ...

Pour the alum solution into the geode, allowing it to overflow into the surrounding container and eventually cover the geode.

it takes 15 hours to complete

help please an btw this isn't a test ill give brainliest science is really my thing. btw help with number 6

Answers

since you have an internal body temperature, which circulates warmth, anything cold that is in contact with your body will start to ‘decrease’ that internal body temp (in that particular part of the body) the hot energy is transferred to the cold -> the cold energy is transferred to the hot

ex: you grab an ice cube, the ice cube begins to melt because the warmth of your hand melts it, afterwards your hand is cold

hope this makes sense ! :-)

PLEASE HELP ME! I'll GIVE BRAINLIEST!

Answers

Answer:

Ice cubes melting is an example of the temperature of the environment being warmer than the ice cubes. Because of this, the ice gets heat energy from the air and therfore has enough energy to break into liquid.

Explanation:

Lemme know if you need more explanation!!

Answer:

The process to this is melting.

Explanation:

Due to the temperature of heating, it will melt, which will cause the solid, to a liquid.

I really hope this answers your question!

Which of the following statements best describes the particles of a liquid?
Group of answer choices

The particles are closely packed and vibrating in place.

The particles are close together but moving past each other.

The particles are far apart and moving slowly.

The particles are far apart and moving fast.

Answers

B. the particles are close together but moving past each other

Chemical reaction for acrylic fiber (7th grade chemistry) pllllzzzzzz help ASAP.

Answers

Answer: The chemical reaction for fiber is that it oxidizes.

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