Answer:
the 2 means there are 2 al and the 3 means there are 3 o
Explanation:
I hope this helps
Which of these are significant problems with bottled water?
Immense plastic use
Fossil fuel used to transport water
Water bottles can leach toxics into water
All of the above
Answer:
All the above
Explanation:
All the above
electronegativities of elements from Period 3 and Group 17. Fill in the missing values in the table so you can compare the electronegativities of the elements. After the table is filled in, compare the values in each column. A = B = C =
Answer:
A = 3.16
B = 1.31
C = 0.93
Explanation:
Please help me
What will oxygen likely do to complete its outermost shell, based on the Lewis dot diagram shown?
accept electrons
accept some electrons and give up other electrons
move electrons from the inner shell to the outer shell
give up electrons
Answer:
A. Accept electrons
Explanation:
The octet rule states that 8 electrons stabilizes a molecule. This means that oxygen will try to fill the two empty spots with electrons from other molecules. The Lewis Dot diagram shows these two empty spots with the empty circles at the bottom.
Lewis dot structures, also known as electron dot structures, are schematics that show the interatomic chemical bonds in a molecule. Additionally, they show how many lone pairs there are overall in each of the atoms that make up the molecule. Here 'O' accepts electrons. The correct option is A.
The electrical structures of the elements, especially the electron pairings, are reflected in the Lewis dot structures. Lewis structures can be viewed as "electron bookkeeping" and are a helpful approach to condensing some bonding-related information. Each dot in a Lewis dot structure corresponds to 1 electron.
Group 6 member oxygen still requires two additional electrons to complete its outer shell and remain stable. According to the octet rule, an object needs 8 valence electrons in the outer shell to be stable.
Thus the correct option is A.
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A train station in Tokyo uses tiles that convert people’s footsteps into electricity.
A.Restore
B. Rethink
C. Reduce
D. reuse
Answer:
reuse
Explanation:
A substance has a molecular formula of C8H10N4O2
The empirical formula of a substance = C₄H₅N₂O
Further explanationThe empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
((empirical formula)n=C₈H₁₀N₄O₂
divide by 2 :
(C₄H₅N₂O)₂=C₈H₁₀N₄O₂
what are cons of viruses ?????? oh dont mind this i jus gotta get this out of my head dont stop pop tht pop tht mhm jus like tht mhm shake it shake it mhm work it work it!!!!!!!!!!!
Answer:
Viruses can weaken your immune system. They make you sick. Some could even cause death.
Explanation:
I hope this helped I heard that song I forgot the name lol
Which one of the following statements about orbitals is INCORRECT?
1) orbitals are regions in space where one is likely to find an electron
2) orbitals can hold up to two electrons
3) orbitals can hold two electrons provided they are spinning in the same direction
4) s, p, d and f orbitals are possible
3) orbitals can hold two electrons provided they are spinning in the same direction
We define an orbital in chemistry as a region in space where there is a high probability of finding an electron.
Each orbital holds a maximum of two electrons which spin in opposite direction according to Pauli exclusion principle.
According to this principle no two electrons can have the same set of quantum numbers. As a result, the spin quantum numbers of two electrons in the same orbital must differ hence they spin in opposite directions.
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Give two properties that glass and plastic sometimes share.
Answer:
Wall, cup, mug, plastic spoon
Explanation:
Because all of those are glass and it is important to us to make sure that if you are touching this brle careful
Answer:
Example aflask that is made in plastic,a plastic jag
Explanation:
they share some of the things in common such us
1.the height
2. the density
If a radiation source has a wavelength of 4.76 x 10-6 m, then what is its frequency?
Answer: 6.3 * 10^15
Explanation:
wavelength = speed of light / frequency
so rewriting the equation gives frequency = speed of light / wavelength
so 3.0 *10^10 / 4.76 * 10^-6 = 6.3 * 10^15
Which option is an Ionic Compound
A.LiCl
B.CO
C.No2
D.So3
Answer:
LiCI
Explanation:
CO and No2 are both covalent compounds and it was a 50 50 and I guessed the right answer.
The one that is an ionic compound is LiCl. The correct option is A.
What are ionic compounds?
Ionic compounds are those compounds that have one negative and one positive charge molecule. When this negative and positive charge joins together, the compound becomes neutral. Electrostatic force joins these elements.
LiCl is a salt that is formed by the joining of lithium with chloride. Lithium is positively charged and chlorine is negatively charged. One identity of this compound is that it is a neutral salt, so it can be identified as an ionic compound. When they disjoint, they form a crystal-like structure.
An example of an ionic compound is sodium chloride, in which sodium is positive and chloride is negative.
Therefore, the correct option is A. LiCl.
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1000 cm3 of Helium has a mass of 178.5 grams. What is the density of Helium gas?
Answer:
The answer is 0.18 g/cm³Explanation:
The density of a substance can be found by using the formula
[tex]density = \frac{mass}{volume} \\ [/tex]
From the question we have
[tex]density = \frac{178.5}{1000} \\ = 0.1785[/tex]
We have the final answer as
0.18 g/cm³Hope this helps you
Sucrose is an organic compound made by plants for quick energy. What type of organic compound is sucrose?
1-protein
2-carbohydrate
3-lipid
4-nucleic acid
Answer:
2-carbohydrate
Explanation:
Sucrose belongs to the carbohydrate family. It is a disaccharide which is derived from the condensation of glucose and fructose.
In the body, they are sources of energy for living processes. Upon hydrolysis such disaccharide produces tow monosaccharide units. Food substances that are energy rich will contain some of these organic molecules.Sucrose is a specific type of organic compound classified as a carbohydrate and the correct option is option 2.
Carbohydrates are essential biomolecules made up of carbon, hydrogen, and oxygen atoms. Sucrose, also known as table sugar, is a disaccharide formed by the chemical bonding of one glucose molecule and one fructose molecule.
Plants produce sucrose through photosynthesis and use it as a readily available source of energy. When consumed by animals, including humans, sucrose is broken down into its constituent monosaccharides to provide fuel for various cellular processes.
Thus, the ideal selection is option 2.
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_______forces do not affect the movement of an object.
Ernest Rutherford built on the work of previous scientists and improved the accuracy of the atomic model. What part of the atom is Rutherford
credited for discovering?
A.) The protons
B.) The electrons
C.) The nucleus
D.)The electron cloud
A beaker contains 318 mL
m
L
of a 5.75 M
M
HCl(aq)
H
C
l
(
a
q
)
solution. Determine the new concentration of the solution after it is diluted by adding 143 mL
m
L
of water to the beaker.
Answer:
3.97 M
Explanation:
Given data:
Initial volume V₁ = 318 mL
Initial molarity M₁ = 5.75 M
New volume V₂= 461 mL
New concentration M₂= ?
Solution:
New volume V₂= 143 mL+ 318 mL
New volume V₂= 461 mL
Formula:
M₁V₁ = M₂V₂
M₂ = M₁V₁ / V₂
M₂ = 5.75 M × 318 mL / 461 mL
M₂ = 1828.5 M. mL/ 461 mL
M₂ = 3.97 M
if your mass was 200 grams what would your weight be on this planet.
Answer:
200
Explanation:
Explanation:
take your weight times by the amount of newtons in a pound, which is 4.45
then convert newtons into grams.
Why are ions usually formed during the interaction of metal with nonmetal and not between two metals?
Explanation:
Ions are always formed when metals and non-metals interact because metals are electropositive. They willing release electrons to non-metals that are electronegative.
This activity results in charge separation. The transfer of electrons from one specie to another is what results in an ionic bond and the precedence of charged particles.
Between non-metals, the electrons are jointly shared. Therefore, there is no charge separation.
PLEASE HELP WILL GIVE BRAINLY IF CORRECT
Answer #1: Lithospheric plates are part of a planetary scale thermal convection system. The energy source for plate tectonics is Earth's internal heat while the forces moving the plates are the “ridge push” and “slab pull” gravity forces. It was once thought that mantle convection could drive plate motions.
Answer #2:Subduction is a geological process that takes place at convergent boundaries of tectonic plates where one plate moves under another and is forced to sink due to high gravitational potential energy into the mantle. Subduction zones are sites that usually have a high rate of volcanism and earthquakes.
hope you find what you looking for
do you think the mass of the products after the chemical reaction would be greater than, less than, or the same as the mass of the reactants before the chemical reaction?
It will be the same, as explained by conservation of mass.
hope this helped!
An example of a decomposer is a:
rabbit
mushroom
tulip
Answer:
mushroom
Explanation:
Describe two physical properties of matter and how those properties are measured.
is soil a pure or impure substance?
What kind of reaction is 2H202
>
2H20 + O2?
Answer: Disproportionation reaction
Explanation: A reaction where a compound undergoes oxidation as well as reduction. 2H2O2=2H2O + O2 here hydrogen peroxide is oxidized to oxygen and is reduced to water.
Answer: B (Decomposition)
Explanation: A P E X X X
How many moles of hydrogen
are in 3.7 moles of C8H11 NO2?
5. What do the data in your graphs tell you? Explain in one or two sentences what trend the reader should observe in each of your graphs. (Science Lab Report, if you don't know what the answer is please don't answer-)
Answer:
Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described, and If the data shows pronounced trends or reveals relations between variables, a graph should be used.
Explanation:
literally bro i had the same answer for my actual project for edge
Answer: Graphs are a common method to visually illustrate relationships in the data. The purpose of a graph is to present data that are too numerous or complicated to be described, and If the data shows pronounced trends or reveals relations between variables, a graph should be used.
Explanation:
When is electrolysis used to extract metal?
Answer:
Explanation:
electrolysis is the technique that use direct current to drive a non spontaneous chemical reaction chemical reaction is the gain or lose of electron this technique is use to extract metal from theirs ores
Find the kinetic energy of a 5kg bowling ball that is traveling 2 meters per second
Explanation:
KE = ½ mv²
= ½ x 5 x 2² joule
= 10 joule
A laser used in eye surgery to fuse detached retinas produces radiation with a wavelength of 6.4 x 10^-7 m. What is the frequency of the laser?
Speed of light = 3.00 x 10^8 m/s
(Hint: Remember to round your answer to the lowest number of significant figures.)
(Speed of light) / (Wavelength) = Frequency
show steps please.
Answer:
ν ≈ 4.7 × 10¹⁴ Hz
General Formulas and Concepts:
Chem
Speed of Light = Wavelength times Frequency
c = λν c = 3.0 × 10⁸ m/sExplanation:
Step 1: Define
λ = 6.4 × 10⁻⁷ m
Step 2: Solve for ν
3.0 × 10⁸ = 6.4 × 10⁻⁷ · ν
ν = 4.6875 × 10¹⁴ Hz
Step 3: Check
We are given 2 sig figs. Follow sig fig rules.
4.6875 × 10¹⁴ Hz ≈ 4.7 × 10¹⁴ Hz
What is the name AND mass number of an atom with 4 protons and 4 neutrons?
PLEASE HELPPP :[
When a chemical change occurs a new substance is created. Harvey put hamburgers on his barbecue, and they cooked. He left fruit out on the counter and they started to rot.
What evidence about chemical changes can Harvey use to support the examples in his experiment?
A.The chemical changes occurred because the chemicals changed.
B. The chemical changes occurred because there was a change in light energy.
C. The fruit and the hamburgers were affected by an increase in heat energy.
D. The fruit and the hamburgers were affected by a decrease in heat energy.
Answer:
C. The fruit and the hamburgers were affected by an increase in heat energy.
Explanation:
One claim Harvey can use to support the examples from his experiment is that the hamburgers and fruits were affected by an increase in the heat energy.
This chemical change is one that is solely driven. This action Harvey is carrying out is cookingWhen meals are cooked, the raw substances undergoes chemical change via the action of heat.Answer:
btw it's not c
Explanation:
a fruit rotting or infected is a chemical reaction therefore,its close to d