A student is asked to describe three random
elements found on the periodic table. All three
elements will FOR SURE have which of the two
following characteristics?
A. similar color and texture
B. shininess and value
C. mass and volume
D. similar boiling and freezing points

Answers

Answer 1
C hope u get it right bye
Answer 2

All three elements  in the periodic table will for sure have characteristic of mass and volume.

What is an element?

An element  is defined as a substance which cannot be broken down further into any other substance. Each element is made up of its own type of atom which is characteristic of it's own. Due to this reason all elements are different from one another.

Elements can be classified as metals and non-metals. Metals are shiny and conduct electricity and are all solids at room temperature except mercury. Non-metals do not conduct electricity and are mostly gases at room temperature except carbon and sulfur.

The number of protons in the nucleus is the defining property of an element and is related to the atomic number.All atoms with same atomic number are atoms of same element.

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Related Questions

What’s clues indicate that a chemical reaction has occurred?

Answers

Answer:

Color change, formation of bubbles, and temperature change

The clouds of Venus consist mainly of ______. Group of answer choices carbon monoxide droplets of water vapor hydrogen and helium droplets of sulfuric acid gaseous nitrogen

Answers

Answer:

droplets of sulfuric acid

Explanation:

How many grams are in 3.4 moles of Lead (IV) Sulfate (Pb(SO4)2)? ) Molar mass: 303.26 g/mol 131.0840​

Answers

Answer:

1031.084g

Explanation:

n=m/M

m=n(M)

m = (3.4mol)(303.26g/mol)

1031.084g

Hope that helps

Answer:

1031.08

Explanation:

You start with 3.4 moles and you know that 6.022 x 10 ^ 23 = 1 mole( Avogadro's Number), so you just multiply those 2 numbers and the moles will cancel leaving you with grams of Lead Sulfate.

Countercurrent Flow
Which filter regions have a concentration gradient between the blood and dialysate?
Check all that apply.

Answers

Answer: All options (I, II, III, IV, V)

Explanation: The answer is all options because they never reach equilibrium or intersect at a region as the both decrease at the same rate.

Answer: Picture shows the correct one

Explanation:

what is waves is energy passing through the medium of water? true or false​

Answers

So we meet again huh, my young apprentice

i have no idea what you said but for the sake of god its true

Which neutral atom is isoelectronic with N-3?

Answers

The neutral atom is isoelectronic with N⁻³ is Neon (Ne).

Isoelectronic are those which have same number of electrons or we can say that same electronic structure.

For finding out that the species are isoelectronic , we just have to count there no. of electrons of atoms and if they have same no. of electron then they said to be isoelectronic species.

no. of electrons in Nitrogen N = 7 ( atomic no.)

no. of electrons in Nitride ion N⁻³ = 7 + 3 = 10

no. of electrons in Neon Ne = 10 ( atomic no. and neutral atom)

so, no. of electrons in Nitride ion N⁻³  = no. of electron in Neon Ne

this means , N⁻³ , Nitride ion is isoelectronic with Neon Ne.

Thus, The neutral atom is isoelectronic with N⁻³ is Neon (Ne).

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When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed.

a. True
b. False

Answers

A as in false YWWEEEW

The molecular formula for a compound with a molar mass of 180.18g that contains 40.0% carbon, 6.7% hydrogen, and 53.3% oxygen by mass is

Answers

Answer:

C6H12O6

Explanation:

First you need to find the empirical formula by the percents that they're giving you. You assume that is 100 grams and if for example you have 40% of carbon you will have 40 grams of carbon.

1.Find the number of moles of each atom

C: 40g÷12g/mol= 3.33 mol

H: 6.7g÷1g/mol= 6.7 mol

O: 53.3g÷16g/mol= 3.33 mol

You divide all ratios by the minimum ratio and you obtain the empirical formula

CH2O

Since you're given the molar mass, you now have to find the molar mass of CH2O by adding the molar mass of each element present and repeated in the compound.

CH2O= 30g/mol

Now you know that the molar mass of the molecular formula we are looking for is 180.18 g/mol, and since the empirical formula is the molecular formula in its smaller ratio, by logic you can say that:

180.18g/mol ÷ 30g/mol= 6

So, you now know that the empirical formula is being multiplied by a factor of 6 to reach a compound with a molar mass of 180.18g/mol, so you multiply each subscript of the empirical formula by 6 obtaining:

C6H12O6

HELLLPPPP ASAP !!!! Pls

Answers

Answer:

Melting point, boiling point, state of matter at room temperature, heat of vaporization, flammability and reactivity

Explanation:

If you were a scientist investigating the effects of antioxidants in foods, what would you test and why?

Answers

Answer:

One possible reason why many studies on antioxidant supplements do not show a health benefit is because antioxidants tend to work best in combination with other nutrients, plant chemicals, and even other antioxidants.

Explanation:

What does a chemical equation show that a word equation does not

Answers

Answer: I do believe it shows variables.

Explanation:

how do i find the name of an element

Answers

Answer:

The periodic table will say it underneath the symbol.

Explanation:

I don't know how else to describe it but I hope this helps. :)

In the periodic table of elements it will say


So 28 (NI) is nickle bc thats what is says on the bottom left

Analyze the reaction of solid magnesium and water. Which pair of reactants and products in the table below represent the correct balanced equation for the reaction?

Answers

Answer:

monkey

Explanation:

cause that's what u r

Jeremy left his bike outside overnight. When he woke up in the morning, there were water drops on the seat. When he went to ride his bike after lunch, he saw the water drops had disappeared. Which statement best describes what happened to the water?

A. The energy from the sun caused the water drops to condense.
B. The energy from the sun caused the water on the seat to boil.
C.The energy from the sun cooled the water, causing it to evaporate.
D.The energy from the sun heated the water, causing it to evaporate.

Answers

Answer:

D

Explanation:

a,b, and c wouldn't cause the reaction that Jermey expirenced

Which sentence best describes what happens during a change of state from a solid to a liquid?

A. The temperature stays the same and the particle speed increases

B. The temperature increases and the particle speed stays constant.

C. The temperature decreases and the particle speed decreases.

D. The temperature stays the same and the particle speed stays constant.​

Answers

Answer:

The temperature stays the same and the particle speed stays constant

explain why titanium conducts electricity

Answers

Answer:

Because they are electrical conductors because their delocalized electrons carry electrical charge through the metal. they are good conductors of thermal energy because their delocalized electrons transfer energy.

I hope it helps.

how many kernels are in a bag of microwave popcorn?

Answers

There is about 95 kernels in each bag

a bond in which only one pair of
electrons is shared?

Answers

Answer:

A single covalent bond

Explanation:

A single covalent bond is when only one pair of electrons is shared between atoms. A sigma bond is the strongest type of covalent bond, in which the atomic orbitals directly overlap between the nuclei of two atoms.

Answer:

Single covalent bond.

Explanation:

Single covalent bond is the type of bond in which only one pair of electrons is shared between atoms.

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

Hope this helped!

~AH1807

What is chemistry,define it ?

Answers

Answer:

the branch of science that deals with the identification of the substances of which matter is composed; the investigation of their properties and the ways in which they interact, combine, and change; and the use of these processes to form new substances.

Explanation:

Hope this helps!

Why are polyatomic called radicals

Answers

that’s because when a charged chemical species composes of two or more atoms (covalently bonded), they act as a single unit. the term radicals refers to free radicals that are with an unpaired electron and because not all of its electrons are found in pairs

what is the chemical formula of tetraphosphorus heptasulfide?

Answers

Answer: P4S7

Explanation:

Which compound contains both sigma and pi bonds? HCCl3 H2CO H2S HBr.

Answers

The compound that contains both sigma and pi bonds has been [tex]\rm \bold{H_2CO}[/tex]. Thus, option B is correct.

The compounds have been resulted by the sharing of the valence electrons between atoms, for the completion of octet of each elements.

The bonds can be saturated with the presence of only sigma bond. The unsaturated bonds has presence of pi bonds as well. The bond with one pi and one sigma has been a double bond, while 1 sigma and 2 pi has been a triple bond.

The bonds present in the following structures has been:

[tex]\rm HCCl_3=4\;\sigma\;bonds\\H_2CO=2\;\sigma,\;1\;\pi\;bond\\H_2S=2\;\sigma\;bonds\\HBr\;=1\;\sigma\;bond[/tex]

The compound with the presence of both sigma and pi bonds has been [tex]\rm \bold{H_2CO}[/tex]. Thus, option B is correct.

For more information about the sigma and pi bonds, refer to the link:

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Mass is the amount of matter in an object, but
weight is
A. the size of the matter.
B. the amount of space matter takes up.
C. the shape of the matter.
D. gravity's pull on the matter.

Answers

Answer: is equal to the gravitational pull on an object

Explanation:

What is the chemical composition of dry ice?

Answers

Answer:

Dry ice is the solid form of carbon dioxide (CO 2), a molecule consisting of a single carbon atom bonded to two oxygen atoms. Dry ice is colorless, odorless, and non-flammable, and can lower the pH of a solution when dissolved in water, forming carbonic acid (H 2 CO 3).

Explanation: i asked my teacher and this was her response.

two different isotopes of an element have different

Answers

Answer:

atomic weight or number of neutrons.

Explanation:

An isotope: is one of two or more forms of the same chemical element.

Different isotopes of an element have the same number of protons in the nucleus, giving them the same atomic number.

A different number of neutrons giving each elemental isotope a different atomic weight.

True or False. When light passes from one medium to another the speed changes.

Answers

Answer:

Its actually true

Explanation:

Your Welcome Canada,

OH YEAH!!!!!!

Answer:

The correct answer is "True".

Explanation:

I hope this helps!

If a 425 gram sample of Uranium-235 had a half-life of 8 days, how much of the sample would remain after 16 days?
type your answer
grams

Answers

What is half of 425 grams? Ok. 212.5 alright. Now half that - 106.25 grams I think.

What makes solids, liquids, and gases different. Explain the hypothesis, prediction and experiments that can lead to scientific theory.

Answers

Answer: Gases, Liquids, and Solids

Gases

Explanation:

Behavior

gas liquid solid

assumes the shape and volume of its container

particles can move past one another assumes the shape of the part of the container which it occupies

particles can move/slide past one another retains a fixed volume and shape

rigid - particles locked into place

compressible

lots of free space between particles not easily compressible

little free space between particles not easily compressible

little free space between particles

flows easily

particles can move past one another flows easily

particles can move/slide past one another does not flow easily

rigid - particles cannot move/slide past one another

a hypothesis is a prediction based on a theory. If the Hypothesis comes true the theory is more accepted.

A scientific theory differs from a scientific fact or scientific law in that a theory explains "why" or "how": a fact is a simple, basic observation, whereas a law is a statement (often a mathematical equation) about a relationship between facts.

2) Imagine that a loudspeaker is producing quiet note with a low pitch

How will it’s viberation change

a) If the pitch of the note becomes higher?

b) If the note become louder

Answers

Answer:

Higher pitched sounds produce waves which are closer together than for lower pitched sounds. (Think of the slinky - if you produce waves rapidly they will travel quite close to each other, thus demonstrating a higher pitched sound.)

The pitch of a note will depend on a number of factors. One of these is the size of the vibrating object. On a glockenspiel or xylophone the high notes are made by the smaller bars. A smaller triangle or cymbal will make a relatively higher pitch note. On a stringed instrument such as a guitar or violin a thinner string will generally make a higher note, but also shortening the string by stopping it with the finger will produce a similar effect. On a set of pan pipes or a church organ it is the shorter pipes which make the higher notes when the air inside them vibrates.

Another factor which produces higher pitched notes is the tension within the vibrating object. A guitar string can be tuned to a higher pitch by adjusting the string tensioner. An elastic band can be stretched tighter and a drum skin can be tensioned to increase the pitch of the sound it produces.

I need help, plz help me with this problem

Answers

Answer:

It's b

Explanation:

I had the same exact question

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