Answer:
They are different ions of the same element.
Explanation:
on Quizlet
What is the working of fuse ?
Answer:
The interpretation of the frame of reference in question is demonstrated below.
Explanation:
The fuses operate on the assumptions including its heating temperature increase of the power supply. It consists of a single layer strip as well as a tangle of a metal rod or wire with such an, especially non-substance. These were directly linked to the finishes of that same access points. Fuse has always been hooked up to an electrical sequence connection.
The time it takes the Moon to go from new moon to full moon and back to new moon is about
Answer:
it takes about 29.5 days for the moon to complete a cycle
Which electron configuration could represent the electrons in a sodium atom in an excited state?
(1) 2-8
(2) 2-8-17
(3) 2-7-1
(4) 2-7-2
Answer:
2-7-2
Explanation:
Elements in which their valence atoms takes up higher energy orbitals compared to the ground state are said to be in an excited state. Hence, sodium atom in an excited state could have the electronic configuration 2 - 7 - 2
The number of atoms in sodium is 11. Hence, a ground state sodium would have the configuration ; 2, 8, 1 In an excited state, the outer shell could have more than 1 atom such as 2, 7, 2 ; with two atoms taking up the higher orbital instead of 1.Therefore, a possible representation of sodium atom in an excited state is 2 - 7 - 2.
Learn more :https://brainly.com/question/2256095
Which sample contains a total of 6.0 x 1023 particles?
Answer: 6,138
:)
Explanation:
Dis fo chem try n answer it ig.
If a person is sterile, he or she is:
unable to reproduce
unable to complete meiosis
unable to complete a Punnett square
unable to complete mitosis
Answer:
1
Explanation:
Sterile means sperm or eggs are not able to Technichaly Create or produce.
does lithium lose or gain valence electrons? and how much?
A water skier is pulled by a net force of 165 N and has an acceleration of 2.2 m/s2. What is the mass of the skier?
A.
75 kg
B.
66 kg
C.
85 kg
D.
65 kg
Question 11 (5 points)
The following equation is balanced correctly:
Li + 02 --> Li20
O True
False
Answer:
False
Explanation:
On the left side of the equation (Li + O2), there is 1 Li atom and 2 O atoms.
but on thw right side of the equation (Li2O,) there is 2 Li atoms and 1 O atom
can yall help w this? iss times so try nd hurry :P
Answer:
The first option
Explanation:
No new compounds were added, and the pre existing ones wern't changed, so option one is the only one that makes sense.
Good luck!
What volume (in L) of nitrogen monoxide will be
required to produce 54.5 L of carbon dioxide in
the reaction below?
2CO(g) + 2NO(g) → N2(g) + 2CO2(g)
Answer:
54.5 L of nitrogen monoxide, NO.
Explanation:
The balanced equation for the reaction is given below:
2CO + 2NO —> N₂ + 2CO₂
From the balanced equation above,
2 L of NO reacted to produce 2 L of CO₂.
Finally, we shall determine the volume of nitrogen monoxide, NO, required to produce 54.5 L of carbon dioxide, CO₂. This can be obtained as follow:
From the balanced equation above,
2 L of NO reacted to produce 2 L of CO₂.
Therefore, 54.5 L of NO will also react to produce 54.5 L of CO₂.
Thus, 54.5 L of nitrogen monoxide, NO, is needed for the reaction.
Answer:
54.5
Explanation:
Regan has an empty glass cup. It has a mass of 0.3 kg. She drops the cup on the ground and it shatters into several pieces. If she collected all of the pieces of the cup, how much mass would all of the pieces have combined?
A.
There is no way to determine the mass of the shattered glass.
B.
more than 0.3 kg
C.
less than 0.3 kg
D.
exactly 0.3 kg
Answer:
743456478697
Explanation:
Answer:
Exactly 0.3 kg
Explanation:
This is the right answer
Why does alcohol evaporate faster than water? *
1.Alcohol evaporates faster than water because alcohol molecules are hotter
2.Alcohol evaporates faster than water because alcohol molecules are not as attracted
to each other as water molecules are
3.Alcohol evaporates faster than water because alcohol molecules are more attracted
to each other than water molecules are (Which one I need help)
Answer:
Number oneExplanation:
Alcohol has a lower boiling point than water. Water boils at 100 degrees Celsius (212 degrees Fahrenheit), while Alcohol boils at 82 degrees Celsius (179.6 degrees Fahrenheit).What has occurred?
an endothermic reaction
an energy formation
a chemical reaction
a precipitate formation
The Statue of Liberty is made out of copper and was once shiny and copper-colored. Over the years, the copper has gone through a process called oxidation, where it has changed into a new material.
Answer:
a chemical reaction
Explanation:
What has happened to the statue of liberty is that a chemical reaction has occurred to the materials making up this edifice.
The statue is made up of copper. On reacting with oxygen, it undergoes an oxidation.
This makes the copper to rust and decolorize.
It implies that copper has reacted with oxygen in air and possibly from water.
This gives a new product.
We know this because for most chemical changes, they give new products and are not easily reversible.
which type of wind is responsible for moving state to state
The formula that forms when Magnesium and Permanganate bond
What is compost manure? Explain.
Answer:
Compost is a mixture of organic residues (manure, animal carcasses, straw, etc.) that have been piled, mixed and moistened to undergo thermophilic (high heat 113 to 160 degrees Fahrenheit) decomposition (SSSA, 1997).
Explanation:
Phase of matter found in the sun and stars
Solid
Liquid
Gas
Plasma
Answer:
Your answer is Plasma which is D.
Explanation:
This is because lighting can be structed in the sky near stars or sun.
The chemical equation below shows the formation of aluminum oxide (Al2O3) from aluminum (Al) and oxygen (O2).
4Al + 3O2 2Al2O3
The molar mass of O2 is 32.0 g/mol. What mass, in grams, of O2 must react to form 3.80 mol of Al2O3?
60.8
81.1
122
182
Answer:
Mass = 182.4 g
Explanation:
Given data:
Number of moles of Al₂O₃ = 3.80 mol
Mass of oxygen required = ?
Solution:
Chemical equation:
4Al + 3O₂ → 2Al₂O₃
Now we will compare the moles of aluminum oxide and oxygen.
Al₂O₃ : O₂
2 : 3
3.80 : 3/2×3.80 = 5.7
Mass of oxygen:
Mass = number of moles × molar mass
Mass = 5.7 mol × 32 g/mol
Mass = 182.4 g
Which substance can be decomposed by a chemical change?
A. Sodium, Na
B.Sulfur, s
C. Calcium Chloride, CaCl2
D.Argon, Ar
Answer:
It could be C. Calcuim Chloride.
Explanation:
If you have 3.62 moles of Tin (Sn), how many grams do you have?
a
.031 grams
b
118.711 grams
c
32.79 grams
d
429.73 grams
Answer:
D.) 429.73 grams
Explanation:
number of moles x molar mass= mass in grams
3.62 x 118.71= 429.73 grams
2 of 4 examples as to why humans are the most dangerous creatures in the ocean
Answer
We kill animals and we are creul :)
Explanation:
Your welcome
If the height that an object is dropped is increased, the object will bounce higher and therefore have
Answer:
Greater impact
Explanation:
Not only will it have a greater impact, but it will also have a greater risk of permanently deforming since the impact force can overcome the elastic modulus of the material and thus suffer permanent damage.
True or false: the smaller the difference between the average experimental value and the correct (true) value the greater the accuracy
Answer:
True
Explanation:
The accuracy level is usually determined by the difference between the experimental and correct value. It is important to note that the smaller the difference between the average experimental value and the correct (true) value, the more accurate it is.
When the difference is large then it means the accuracy level is low and not up to the required standard.
200mL of 12.0M HNO3 is prepared from stock solution of 16.0M HNO3. A,What volume of stock solution of NH3 is used? And b, What volume of water should be added to the stock
Answer:
a. 150mL of the stock solution was added
b. 50mL of water was added
Explanation:
The solution was diluted from 16.0M to 12.0M, that is:
16.0M / 12.0M = 1.333 times was diluted.
As the volume of the diluted solution is 200mL, the amount of the 16.0M stock solution is:
200mL / 1.333 =
a. 150mL of the stock solution was addedAs the volume of the solution is 200mL and 150mL were added of the stock solution, the volume of water is:
200mL - 150mL =
b. 50mL of water was addedhow does air pressure changes with altitude - the distance from the surface
Answer:At higher elevations, there are fewer air molecules above a given surface than a similar surface at lower levels. ... Since more than half of the atmosphere's molecules are located below an altitude of 5.5 km, atmospheric pressure decreases roughly 50% (to around 500 mb) within the lowest 5.5 km.
Explanation:brainliest plz
Answer:
What is that?
Explanation:
Even before modern observations provided evidence supporting the theory of plate tectonics, people developed theories that the continents were once joined together. Using only maps, what did they observe?
Answer:
people or scientist tend to observe the nature of the continents that described by jigsaw fit,geological similarity among the continents
Because sound is energy created by vibrations, through which medium will it move the fastest?
A) gas
B) liquid
C) solid
D) vacuum
Answer:
C - solid
Explanation:
Sound travels fastest through solids. This is because molecules in a solid medium are much closer together than those in a liquid or gas, allowing sound waves to travel more quickly through it. In fact, sound waves travel over 17 times faster through steel than through air.
Answer:
c solid
Explanation:
Why don't the noble gases (group 18) bond with any other elements? *
show work on how you converted them. (also marking brainliest) <3
explanation for qn:
when converting units, u can show your working in the form
37.5 × 1g/1ml, then convert the g and ml into 1/1000 kg and L, and calculate from there. In the end, u find out its actually a trick qn and 1g/ml = 1 kg/L
