Matter is anything that takes up space and can be described by physical and chemical properties. Which statement
BEST differentiates chemical properties from physical properties?
A)
Physical properties are properties that can be physically seen or touched,
while chemical properties can only be found when matter is mixed with
specific chemicals.
B)
Physical properties are measured when matter changes its physical state,
while chemical properties can only be measured if matter remains in one
state for an extended time.
C)
Physical properties are difficult to measure because they require special
tools to detect, and chemical properties are easy to measure and require
not special tools to detect.
D)
Physical properties can be measured/observed without changing matter
into something else, while chemical properties describe matter's ability to
react/combine with other matter.

Answers

Answer 1

Answer:

D)

Physical properties can be measured/observed without changing matter

into something else, while chemical properties describe matter's ability to

react/combine with other matter.

Explanation:

Physical Change                                                                                              

The changes that occur only due to change in shape or physical properties but their chemical or internal composition remain unchanged.  

1 = These changes were reversible.

2= They have same chemical property.

3= These changes can be observed with naked eye.

Example :

Water converting to Ice

Water converting to gas

In this water molecule remain the same only they rearrange themselves that change its state of mater not composition

Chemical change:

The changes, that occur due to change in the composition of a substance and result in a different compound is known as chemical change.

1 = These changes are irreversible

2 = These changes occur due to chemical reactions

3 = These may not be observed with naked eye

Example:

Combustion of fuel or wood: that oil or wood convert into energy, CO₂ and ash in case of wood

Boiling of egg: that change the chemical composition of protein in the egg .

The reaction of Hydrogen and oxygen:

H₂ (g)  + O₂  (g)   →    2H₂O  (l)


Related Questions

What is the rule of zero charge?

Answers

Answer:

The nonmetal atoms accept electrons and form ions with a negative charge, called anions. When an ionic compound forms, the total charge on the atoms adds up to zero. This is known as the rule of zero charge.

Explanation:

Seaweed attached to rocks in the ocean performs photosynthesis underwater. Which statement best explains how some seaweed can survive in very deep and dark places in the ocean? It can use a small amount of sunlight for photosynthesis. It can use a small amount of sunlight for photosynthesis. It moves to the upper levels of the ocean to get sunlight for photosynthesis. It moves to the upper levels of the ocean to get sunlight for photosynthesis. It does not need any sunlight to perform photosynthesis. It does not need any sunlight to perform photosynthesis. It produces its own sunlight to perform photosynthesis. It produces its own sunlight to perform photosynthesis.

Answers

Answer:

It can use a small amount of sunlight for photosynthesis

Explanation:

Seaweeds are a group of marine plants/algae that grow attached to rocks underwater. However, despite their depth underwater, they still perform photosynthesis, which is a process that requires energy from sunlight.

Seaweeds are able to perform photosynthesis underwater because they are efficient users of sunlight energy. Hence, they require only a small amount of sunlight that penetrates the ocean to perform photosynthesis.

Describe Thomson’s and Millikan’s contributions to atomic theory.

Answers

Answer:

Thomson passed an electric current through sealed glass tubes filled with gases. Thomson concluded that electrons must be parts of the atoms of all elements. Millikan determined the charge and mass of the electron.

Explanation:

Thompson discovered electrons and proposed the plum - pudding model of the atom. Millikan measured the charge to mass ratio of an electron.

In the early days of the atomic theory, working with his cathode ray tube, J.J Thompson discovered electrons. His discovery of electrons led him to propose a model which depicted the atom as a sphere of positive charges into which negative charges were embedded. This is the plum-pudding model of the atom.

Using his famous oil-drop experiment, R.A Millikan successfully measured the charge to mass ratio of the electron and thereby determined the magnitude of charge on the electron.

Learn more: https://brainly.com/question/11527546

Determine the average atomic mass of the following mixture of isotopes of Potassium:

(93.12%) 38.963 amu
(6.88 %) 40.962 amu

Answers

Answer

the first one (im pretty sure)

Explanation:

Emma wants to go swimming the first day the pool opens in May, but she is worried it will be too cold since summer only just started. She only likes to swim in the water if the pool is at least 82°F. The thermometer in the pool reads 24°C. Is the pool warm enough for Emma to swim in? Show all work to support your answer.

Answers

Answer:

the water is not warm enough for her

Explanation:

Given that

Her preferred temperature = 82°F

Thermometer in water reads = 24°C

Convert the preferred temperature to °C

°C=5/9 (82-32)

°C = 27.8 °C

Hence the water is not warm enough for her

The water is not warm enough for her to swim in.

She loves to swim in water at temperature = 82°F.Thermometer in water reads = 24°C.

We have to convert Emma's preferred temperature to °C

°C=  5/9 x (F - 32)

°C=5/9 (82-32)

°C = 27.8

Therefore the temperature is 27.8°C

This means that the temperature of the water is not warm enough for her

to swim in.

Read more about Temperature here https://brainly.com/question/1852859

After stirring salt in a container of water, the salt will dissolve. When adding more salt, eventually the salt will not dissolve. Which of the following refers to a substance that can no longer dissolve in a liquid? *

A. boiling point
B. melting point
C. saturation point
D. all of these

Answers

Answer: C. Saturation point

Explanation:

if the force of gravity blank the weight of an object will blank

Answers

Yes! I don’t know the context of the question, but that seems about right!

One hundred students were surveyed about who they would vote for. What is
the best way to display the results? Explain your answer.

Answers

Hey hope this helps ⬇️

Explain how the igneous rock granite forms. Then tell how the granite might become the sedimentary rock sandstone and then the metamorphic rock quartzite.

Answers

Answer:

There are three main types of rocks: sedimentary, igneous, and metamorphic. Each of these rocks are formed by physical changes—such as melting, cooling, eroding, compacting, or deforming—that are part of the rock cycle. Sedimentary Rocks Sedimentary rocks are formed from pieces of other existing rock or organic material. There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Organic sedimentary rocks, like coal, form from hard, biological materials like plants, shells, and bones that are compressed into rock. The formation of clastic and organic rocks begins with the weathering, or breaking down, of the exposed rock into small fragments. Through the process of erosion, these fragments are removed from their source and transported by wind, water, ice, or biological activity to a new location. Once the sediment settles somewhere, and enough of it collects, the lowest layers become compacted so tightly that they form solid rock. Chemical sedimentary rocks, like limestone, halite, and flint, form from chemical precipitation. A chemical precipitate is a chemical compound—for instance, calcium carbonate, salt, and silica—that forms when the solution it is dissolved in, usually water, evaporates and leaves the compound behind. This occurs as water travels through Earth’s crust, weathering the rock and dissolving some of its minerals, transporting it elsewhere. These dissolved minerals are precipitated when the water evaporates. Metamorphic Rocks Metamorphic rocks are rocks that have been changed from their original form by immense heat or pressure. Metamorphic rocks have two classes: foliated and nonfoliated. When a rock with flat or elongated minerals is put under immense pressure, the minerals line up in layers, creating foliation. Foliation is the aligning of elongated or platy minerals, like hornblende or mica, perpendicular to the direction of pressure that is applied. An example of this transformation can be seen with granite, an igneous rock. Granite contains long and platy minerals that are not initially aligned, but when enough pressure is added, those minerals shift to all point in the same direction while getting squeezed into flat sheets. When granite undergoes this process, like at a tectonic plate boundary, it turns into gneiss (pronounced “nice”). Nonfoliated rocks are formed the same way, but they do not contain the minerals that tend to line up under pressure and thus do not have the layered appearance of foliated rocks. Sedimentary rocks like bituminous coal, limestone, and sandstone, given enough heat and pressure, can turn into nonfoliated metamorphic rocks like anthracite coal, marble, and quartzite. Nonfoliated rocks can also form by metamorphism, which happens when magma comes in contact with the surrounding rock. Igneous Rocks Igneous rocks (derived from the Latin word for fire) are formed when molten hot material cools and solidifies. Igneous rocks can also be made a couple of different ways. When they are formed inside of the earth, they are called intrusive, or plutonic, igneous rocks. If they are formed outside or on top of Earth’s crust, they are called extrusive, or volcanic, igneous rocks. Granite and diorite are examples of common intrusive rocks. They have a coarse texture with large mineral grains, indicating that they spent thousands or millions of years cooling down inside the earth, a time course that allowed large mineral crystals to grow.

Alternatively, rocks like basalt and obsidian have very small grains and a relatively fine texture. This happens because when magma erupts into lava, it cools more quickly than it would if it stayed inside the earth, giving crystals less time to form. Obsidian cools into volcanic glass so quickly when ejected that the grains are impossible to see with the naked eye. Extrusive igneous rocks can also have a vesicular, or “holey” texture. This happens when the ejected magma still has gases inside of it so when it cools, the gas bubbles are trapped and end up giving the rock a bubbly texture. An example of this would be pumice.

Explanation:

oh and also nice profile pic :P

I hate chemistry please help

Answers

Answer:

Love it because Love it

Explanation:

Please help anyone??

Answers

6 because 3*2 equals 6 atoms of Sulfur

Answer:

6 sulfur atoms

Explanation:

The subscripts right after each element tell you how many elements are present in the ion. If there are parentheses, the subscript outside of them applies to all the elements in the parentheses. You multiply the subscript of the element by the subscript of the ion (the one outside the parentheses)

2 x 3 = 6 S

if a man could fall through a hole that passes through the center of Earth, gravity would cause him to:

A.Gain speed until he reached the other end of the tunnel.
B. Stop falling at the center of Earth.
C. Gain speed until he passed the center and then lose speed until he reached the other side.

Answers

I believe it would be C.
Although I am not sure because along with gravity friction would occur but this is the center of the earth so I am not completely sure but I really hope it helps :) if it’s wrong let me know

does anyone know how to do this thanks ​

Answers

Answer:

I don't know how to do this

sorry I can't able to help you

Explanation:

[tex]hii[/tex]

have a nice day ✌️


With circulation, the heart provides your body with:
a. oxygen
b. nutrients
C. a way to get rid of waste
d. all of the above

Answers

Answer:  D) all of the above

Explanation:

The lungs pump oxygen in and carbon dioxide out, which goes through the blood stream to help with the cell's energy needs.

Nutrients pass through the blood stream as well. The nutrients start with the digestive system (mouth, esophagus, stomach, small intestine) before going into the blood stream. The nutrients are building blocks to help make new cells when old ones die off.

When those cells die off, the body sheds them like dead skin, but internal dead cells are passed off as waste. This waste and other byproducts the body doesn't need passes through the blood stream as well.

In short, the blood stream is basically the highway to help get desired materials (eg: oxygen and nutrients) and get rid of waste (eg: carbon dioxide and other unwanted byproducts or dead cell material)

So that's why the answer includes A, B and C.

what are parts in the human stomach

Answers

The cardia, fundus, body and pylorus

why are lithium and sodium similar

Answers

Answer:

Lithium, sodium, potassium, rubidium, and cesium are all part of a group called the alkali metals. ... They are all soft metals in elemental form and they all react violently with water. They react so strongly because they all readily lose an electron to form the +1 cation very easily.

TRIPLE POINTS!!! I NEED HELP!!! PLEASE EXPLAIN TOO!!! What is the energy of a quantum of light with a frequency of 4.31 x 1014 1/s or Hz?

Answers

Answer:

The answer is

[tex]2.86 \times {10}^{ - 19} \: J[/tex]

Explanation:

The energy of a quantum of light can be found by using the formula

E = hf

where

E is the energy

f is the frequency

h is the Planck's constant which is

6.626 × 10-³⁴ Js

From the question

f = 4.31 × 10¹⁴ Hz

We have

E = 4.31 × 10¹⁴ × 6.626 × 10-³⁴

We have the final answer as

[tex]2.86 \times {10}^{ - 19} \: J[/tex]

Hope this helps you

10. If the number of particles in the left box above were doubled, what would happen to the pressure of the

gas? Explain.

A. The pressure of the gas on the left would decrease because the number of collisions would also

decrease.

B. The pressure of the gas on the left stay the same because the number of collisions would also be the

same

C. The pressure of the gas on the left would decrease because the number of collisions would increase.

D. The pressure of the gas on the left would double because the number of collisions would also double.

Answers

Answer:

D. The pressure of the gas on the left would double because the number of collisions would also double.

Explanation:

According to Boyle’s law, the pressure of a gas is inversely proportional to its volume.

As the number of particles was doubled in the left box, the particles have less space for movement as the volume occupied by gas particles has decreased and it will lead to the collision of gas particles with the walls of the container.

As the volume decreases as gas particles were doubled and so the pressure of the gas on the left would double.

Hence, the correct answer is "D. The pressure of the gas on the left would double because the number of collisions would also double."

Elements can be described by their properties. Some of these properties are physical properties and some are chemical properties Observe the list provided. Which one of these contains ONLY Cchemical properties


A) C,E,F
B) B,C,E
C) B, E, F
D) C,D,E​

Answers

Its a c,e,f

Sadly i got it wrong

Flammability, Ability to rust and Ability to tarnish (C,E,F) are chemical properties of an element.

The property of an element is the characteristic feature of that element which helps us to differentiate it from another  element.

We have

The Physical proprieties- These are features of an element which we can identify by sight and touch, Some of them include colour, hardness, boiling and ,melting point, size etcChemical properties These are the features of an element which w\e observe when the element has undergone a chemical change which changes its composition. Examples are Flammability, rust, tarnish , corrosion etc.

See more here:https://brainly.com/question/2116116

How will you know that a
mixture is a homogeneous or
heterogeneous mixture?

Answers

A homogenous mixture has a uniform composition. This means it is made of two or more things, but the different things are spread out evenly.

A heterogenous mixture does not have a uniform composition. Things are randomly spread out.

You can often tell by looking. If something looks the same throughout the whole thing it is homogenous while if it looks different throughout it is heterogenous. For example, Gatorade is homogenous because it looks the same throughout the entire bottle.

Which statement best describes how to predict the formula of a stable ionic compound?
A) Use the same number of cations as anions so that the compound is neutral.
B) Use more cations than anions so that the compound is positively charged.
C) Use enough cations and anions so that the total charge is zero.
D) Use fewer cations than anions so that the compound is negatively charged.

Answers

Answer:

C ; Use enough cations and anions so that the total charge is zero

in a stable ionic compound, in order for you to get the formula, you need the positive and negative ions on one side to cancel out the compound, it becomes neutral, by being 0.

i hope that made sense :/

Answer:

c

Explanation:

ALL OF THESE ARE FORMS OF MIXTURES EXECPT...

A. ALLOYS
B. NEON
C. COLLOIDS
D. SOLUTIONS

Answers

Answer:

B. NEON.

HOPE IT HELPED


In an atom, the number of protons equals the number of
A.nuclei.
b. electrons.
neutrons.
d. isotopes.
c.

Answers

The number of protons is equal to the number of electrons.

Light with 4.5 eV of energy hits a metal surface with a work function of 3.2 eV. Will electrons be emitted ? If so how much energy ?

Answers

Answer:

Yes, electrons with energy of 1.3ev will be emitted from the metal surface

Explanation:

From Eisenstein's photoelectric equation;

KE= E - Wo

Where;

KE= kinetic energy of the emitted photoelectron = ??

E= Energy of the photon =4.5 ev

Wo= work function of the metal = 3.2ev

KE= 4.5 ev - 3.2 ev

KE= 1.3 ev

what is the answer to 2.5 * 22.5

Answers

your answer to 2.5*22.56 is 56.25

What are the 2 types of lava?

Answers

Pahoehoe and Aa are two types of lava

Answer:

pahoehoe and aa

Explanation:

this is real and is no joke

The millions of fossils that scientists have collected are called the fossil __.

Answers

Answer:

record

Explanation:

how are subtances dissolved ?​

Answers

Answer: A solute dissolves because its particles interact with the particles of a solvent. Anything that allows more solvent to touch more solute will cause a solute to dissolve more quickly. Small pieces of a substance dissolve faster than large pieces.

A solute dissolves because its particles interact with the particles of a solvent. Anything that allows more solvent to touch more solute will cause a solute to dissolve more quickly. Small pieces of a substance dissolve faster than large pieces.



The heart is a large
________________
that pumps the blood
throughout the body.

Answers

Muscular organ that pumps blood throughout the body

Which set of elements is in the order of decreasing/ increasing malleability? (Questions: 7 & 8)

Answers

Answer:the first answer is correct and 8 is O, Ge, Mn

Explanation:

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