Chemistry High School

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Answers

Answer 1
I’m sorry I have to do this

Related Questions

Can someone pls answer quickly?

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answer is atom.Hope it is helpful.

Answer:

Atoms are the smallest particles that made up matter.

What is the enthaply of dissolution? ​

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Answer:

The enthalpy change of solution refers to the amount of heat that is released or absorbed during the dissolving process (at constant pressure).

Explanation:

The enthalpy of solution, enthalpy of dissolution, or heat of solution is the enthalpy change associated with the dissolution of a substance in a solvent at constant pressure resulting in infinite dilution.
The enthalpy of solution is most often expressed in kJ/mol at constant temperature. The energy change can be regarded as being made of three parts, the endothermic breaking of bonds within the solute and within the solvent, and the formation of attractions between the solute and the solvent. An ideal solution has a null enthalpy of mixing. For a non-ideal solution it is an excess molar quantity.

What is the V2O5 coefficient??

Answers

Answer:

1235

Explanation:

if thers a  a guess in that number

The compound V₂O₅ has a Seebeck coefficient at a temperature of 50 °C of -990 μV/K.

What is a compound?

Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.

Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:

1)Molecular compounds where in atoms are joined by covalent bonds.

2) ionic compounds where atoms are joined by ionic bond.

3)Inter-metallic compounds where atoms are held by metallic bonds

4) co-ordination complexes where atoms are held by co-ordinate bonds.

They have a unique chemical structure held together by chemical bonds .Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.

Learn more about compounds,here:

https://brainly.com/question/13516179

#SPJ2

A solid is composed entirely of xenon atoms. What type of solid is it?
a) ionic
b) metallic
c) covalent network
d) atomic
e) molecular
f) amorphous

Answers

Answer:

ionic

Explanation:

xenom atoms are too large to move in the crystals without first associating with two oxygen ion vacancies and one uranium ion vacancy

helppp mehhh thanks:))

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Answer:

natural gas

Explanation:

your welcomeee

I WILL MARK BRAINLIEST!!!!! !!



(picture included with one question ^^^^^^^)

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Answer:

type D

balance form .b

Explanation:

In this periodic table, which type of element is shown in green boxes?
A. Noble gases
B. Metalloids
C. Nonmetals
D. Metals

Answers

The correct answer is B. Metalloids

Explanation:

In this periodic table, the green boxes include elements such as Boron (B), Arsenic (As), and Antimony (Sb). All these elements are known in chemistry as semimetals or metalloids. This classification is because these elements cannot be completely classified into metals or non-metals. Moreover, they all display similar properties including some level of conductivity, malleability, and solid-state. According to this, the correct answer is B.

Answer:

B. Metalloids

Explanation:

State which statement is a physical change or a chemical change:
(a) Sawing wood
(b) Cooking eggs
(c) Melting chocolate
(d) Chewing sweets
(e) Rusting iron
(f) Filing your fingernails
(g) Milk turning sour
(h) Blow-drying your hair
(i) Boiling water
(j) Baking a cake
(k) Burning a match

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Answer:

Physical change: A,C ,D, F, H, I

Chemical Change: B, E, G, J, K

Which of the following is the best insulator?

Group of answer choices

copper

aluminum

gold

wood

Answers

Answer:

wood

Explanation:

hope this helps! good luck on ur test :)

Answer:

Wood

Explanation:

Li and S - covalent or ionic bond?

Answers

Answer:

It is an ionic bond.

Explanation:

Ionic bonds occur when a metal and a nonmetal combine, while covalent bonds occur between two nonmetals. Lithium is a metal and sulfur is a nonmetal.

It’s a ionic bond I believe. We just learned about this in school

3 way to make bases​

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Sorry it’s really unclear what your asking

how is sonoluminescence similar to what we see in fireworks?​

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Answer:

Explanation:

Sonoluminescence is a phenomenon in which small gas bubbles burst to produce light when intense sound wave is introduced. Thus, it can be said that sound energy is converted to light energy here. This is similar to the process of how fire crackers work except that sonoluminescence occurs in a liquid medium while firecrackers work in solid media. In firecrackers, when the tip is lit with fire, the initial explosion is caused by the expansion of some nitrogen and carbon present in some constituent compounds, this explosion produces heat which causes some other constituent chemicals in the firecracker to quickly react and produce light. Thus, this can also be said to convert sound energy to light energy and are thus similar to what occurs in sonoluminescence.

2) Gas in a balloon occupies 3.3 L. What volume will it occupy if the pressure
is changed from 100 kPa to 90 kPa,

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Answer:

The answer is 3.7 L

Explanation:

The new volume can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we are finding the new volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

From the question we have

[tex]V_2 = \frac{3.3 \times 100000}{90000} = \frac{330000}{9000 } \\ = 3.666666...[/tex]

We have the final answer as

3.7 L

Hope this helps you

Write a Formula
Compound Name: Strontium Sulfate

Answers

SrSO4 is the formula

Answer:

it's SrSO4

Explanation:

2. Which of the following represents the tiny parts within a cell? *

Answers

The answer should be organelles

. The model shows Earth in several positions relative to the Sun. In which position is it winter in North America?​

Answers

What does the model look like
all the way to the right

The three types of symbiosis are ___ and ___

Answers

Answer:

mutualism,commensalism and parasitism

Answer:

mutualism, commensalism, and parasitism

Heeeeeelp will give brainliest
What is the total number of atoms in 36 molecules of glucose C6 (H2O) 6

Answers

Answer:

Explanation:

Glucose has a chemical formula of: C6H12O6 That means glucose is made of 6 carbon atoms, 12 hydrogen atoms and 6 oxygen atoms.

The number of elements in one molecule of H2O is

1) 5 elements
2) 5 atoms
3) 2 elements
4) 0 elements

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Answer:

2 elements

Explanation:

There are the two elements that make water

I need help I know it isnt A

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It is B. Thank you later please and do good on the test!
The answer is D. You have the right answer highlighted!

2. A chemical reaction occurs when substances interact and their atoms
O A. disappear
B. change their size.
C. become new atoms.
O D. rearrange

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Answer:Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

Explanation:

Speed of 5km. Pls help

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Answer:

It's either A. or B. Im going with B. since the person is walking a constant speed

Explanation:

acceleration is basically when someone or something is increasing in speed

Based on the figure below, what do the elements of a group (family) have
in common

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Answer:

Explanation:

Send figure below

A bad case of tonsillitis can sometimes affect a person’s breathing.How is this possible ?

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Answer:

Tonsillitis is inflammation of tonsils. It is caused by viral infection and very rarely by bacterial infection.

It is a very serious problem in case of children, adults and teenagers. The continuous coughing can lead to swelling in the throat which in case affects the  passage of airways.

This hindered air passage can cause breathing problems. The inflammation can also affect the passage of air and affects breathing.

Explanation:

Convert 5 micrometers to meters

Answers

0.000005 is your answer. Hope this helps!!

The Synthesis Reaction of aluminum (Al) and iodine (I) forms a new, more complex
product. What is the product?

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Answer:

Aluminum iodide (AlI₃)

Explanation:

The synthesis reaction of aluminum (Al) and iodine (I) can be illustrated as shown below:

Aluminium exhibit trivalent positive ion (Al³⁺)

Iodine exhibit univalent negative ion (I¯)

During reaction, there will be an exchange of ion as shown below:

Al³⁺ + I¯ —> AlI₃

Thus, we can write the balanced equation for the reaction as follow:

Al + I₂ —› AlI₃

There are 2 atoms of I on the left side and 3 atoms on the right side. It can be balance by putting 2 in front of AlI₃ and 3 in front of I₂ as shown below:

Al + 3I₂ —› 2AlI₃

There are 2 atoms of Al on the right side and 1 atom on the left side. It can be balance by putting 2 in front of Al as shown below:

2Al + 3I₂ —› 2AlI₃

Thus the equation is balanced.

The product on the reaction is aluminum iodide (AlI₃)

Colour in acid of red litmus paper​

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Red

Litmus paper turn red when it comes in contact with acid. It turn blue if it come in contact with a base. Neutral litmus paper is purple

Are ionic compounds not carrying a charge?​

Answers

Answer:

yes they carry charges

Convert 62.5 L to mm
3

Answers

Answer:

0.0625

Explanation:

Answer:

62,500

Explanation:

___ V2O5 + ___ CaS ___ CaO + ___ V2S5

Answers

Answer:

3

Explanation:

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