Answer:
C3H
Explanation:
Initially these primary suit particles have roughly the composition and each is actually made up of several thousand carbon Adams the empirical formula suggest cycle is highly unders and unsaturated made structural element
Answer:
C3H)n
Explanation:
Name the phase change:
Solid to liquid:
Liquid to gas:
Solid to gas:
Liquid to Solid:
Gas to liquid:
Gas to solid:
Answer:
solid to liquid = melting
liquid to gas = evaporation
solid to gas = sublimation
liquid to solid = freezing
gas to liquid = condensation
gas to solid = deposition
Explanation:
Answer: 1) melting
2) Evaporating
3) sublimation
4) Freezing
5) condensation
6) Deposition
Explanation:
Please HELPPPPP ME ASAP!
Answer:
0.1 M
Explanation:
Please see the attached picture for full solution.
What is the median of the following set: 2, 4, 6, 8, and 10?
Answer:9
Explanation:
(3+8+10+15)/4 = 36/4 = 9
Wat is atomic in science
hay una cosa llamada google usarlo dummby!
A student is studying calcium, a highly reactive element that humans need for strong bones. Which characteristic of calcium is most closely related to its chemical reactivity?
The 20 protons in each atom of calcium
The density of calcium, which is 1.54 g/cm3
The atomic mass of calcium, which is 40.078 amu
The 2 valence electrons in each atom of calcium
Answer:D
Explanation:
Took the quiz
The 2 valence electrons in each atom of calcium this is a characteristic of calcium are most closely related to its chemical reactivity. Hence, option D is correct.
What is calcium?Calcium is a chemical element with the symbol of (Ca).an atomic number of calcium is 20.it is an alkaline earth metal. The atomic mass of calcium is 40.078 unit.
When metal atoms are reacts by losing they're losing their valence electrons. So, the reactivity of a metal depends on how easily its atoms lose valence electrons.
Calcium is a major mineral in our bones.
If you don’t get the right amount of calcium, you lose more bone strength.
The chemical reactivity of an element is dependent on its valence electrons and the distance of its valence electrons from the atomic nucleus.
The 2 valence electrons in each atom of calcium this is a characteristic of calcium is most closely related to its chemical reactivity. Hence, option D is correct.
Learn more about calcium, here:
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The amount of oxygen in the reactants is 4 atoms. In the products, the oxygen is distributed to water (H20) and O2 gas. Which coefficients would be placed in front of water and oxygen?
2 in front of water and 2 in front of oxygen O
1 in front of water and 2 in front of oxygen O
1 in front of water and 1 in front of oxygen O
2 in front of water and 1 in front of oxygen
Answer:
D. 2 in front of water and 1 in front of oxygen
Explanation:
This would even out the equation.
What is the process called that living things perform to make useable energy from
sugar?
-photosynthesis
-exercise
-heterotrophs
-cellular Respiration
Answer:
cellular respiration
Explanation:
Organisms ingest large molecules, like carbohydrates, proteins, and fats, and convert them into smaller molecules like carbon dioxide and water. This process is called cellular respiration, a form of catabolism, and makes energy available for the cell to use.
What is the definition of a Lewis acid?
a substance that accepts electrons to form a covalent bond
a substance that donates electrons to form a covalent bond
a substance that accepts a proton
a substance that donates a proton
Lewis acid is:
A. a substance that accepts electrons to form a covalent bond
What is a Lewis acid?A Lewis acid is accordingly any substance, for example, the H+ particle, that can acknowledge a couple of nonbonding electrons. At the end of the day, a Lewis acid is an electron-pair acceptor.
Thus, option A is correct.
Find more information about Lewis acid here:
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Answer:
A: a substance that accepts electrons to form a covalent bond.
Explanation:
1 lb = 16 oz conversion factors
Answer:
In the North, ______ were used to keep black and white people apart.
ASocial customs incorrect answer
BState laws incorrect answer
CFederal laws incorrect answer
DCourt orders:
Clear s
Name the element: 1s2 252 2p1
Answer:
The name of this element is boron if you meant to say 1s2 2s2 2p1 instead of 1s2 252 2p1 Because there is no Electron Configuration for 1s2 252 2p1.
Explanation:
Hope this helped you!
four large grocery food chains sell approximately how much of the nations food
100 percent one-half one-fourth three-fourths.
(got it off google sorry if it is wrong)
+
Convert 0.406 km into cm
Answer:
The answer is 40600 because of the formula
Answer: 40600
Explanation: You just have to times 100,000 and 0.406
It would look like this...
0.406 * 100,000
or
0.406 x 100,000
---------------------------------------------------
The formula is "multiplying the length value by 100000"
Hope this helps!
. Name three types of energy that exist in a large piece of charcoal on a grill in the sunlight. Explain why the charcoal has each type of energy. (3 points)
Answer:
Chemical Energy, Heat Energy, Radiant(Solar) Energy
Explanation:
First of all, in the large piece of charcoal, there is Chemical energy is stored in it's hydrocarbon molecules. Now, when the charcoal is placed under the grill, it is combusted and then the chemical energy is transformed into heat energy.
Also since it's exposed under sunlight, the charcoal will experience the effect of radiant(solar) energy.
Your cross country skis are 210 cm long. What is their length in inches?
210 cm converted into inches is 82.67716535 in.
Which mineral is commonly found in igneous rocks?
halite
feldspar
gypsum
talc
Answer:
Feldspars
Explanation:
Hope this helps! :) x
are sand and water a heterogeneous or homogeneous
Answer:
Salt is soluble in water, which would give a homogeneous mixture. But, when you add sand, which is insoluble, you will have a mixture of two different phases, a solid and a liquid, therefore this is a heterogenous mixture.
Explanation:
Answer:
Sand and water heterogenous mixtures
Explanation:
Source Socratic Chmistry mixtures
Which of the following is the correct measurement for the volume of liquid shown below?
A 50.1 mL
B 51 mL
C 50.2 mL
D 52.0 mL
When a force sets an object in motion, the moving object has kinetic energy.
True or false
Answer:
I think it's true but I'm not to positive on it <3
Explanation:
Answer: True
Remember, Kinetic Energy is anything that moves and not that stops. Let’s make something up, Steve is playing Jacks.When Steve bounces the ball it has kinetic energy when he releases it from his hand, when the ball hits the ground it’s called Potential Energy because it stops.
Is Salt and pepper an example of a homogenous mixture?
Answer:
no it is a heterogeneous mixture because salt and pepper are not mixed uniformly.
L is the midpoint of VC
LV = 9 find VC
Answer:
VC = 18
Explanation:
Since L is the midpoint and you have LV, you know that LC is also 9.
Does nitrogen have a higher ionization energy than potassium?
According to the following reaction, how many moles of iron(III) chloride will be formed upon the complete reaction of 26.2 grams of iron with excess chlorine gas ?
iron(s) + chlorine(g) iron(III) chloride(s)
Answer:
0.469 mol FeCl₃
Explanation:
Your reaction as a chemical equation is:
2 Fe (s) + 3 Cl₂ (g) ⇒ 2 FeCl₃ (s)
You have 26.2 grams of iron. Convert to moles of iron.
(26.2 g)/(55.845 g/mol) = 0.4692 mol
Use the mole ratio from the chemical equation to convert moles of iron to moles of iron(III) chloride.
(0.4692 mol Fe) × (2 mol FeCl₃/2 mol Fe) = 0.469 mol FeCl₃
You will have 0.469 moles of iron(III) chloride at the end of the reaction.
0.469 moles of iron(III) chloride upon the complete reaction of 26.2 grams of iron with excess chlorine gas
What do you mean by Moles?Its a typical scientific unit used to measure vast numbers of extremely small objects, such as atoms, molecules, or other specific particles.
Iron content in you is 26.2 gram. Transform into moles of iron.
(0.4692 mole) = (26.2 g)/(55.845 g/mole)
Converting moles of iron to moles of iron(III) chloride requires using the mole ratio from the chemical equation.
(2 mole FeCl3/2 mole Fe) (0.4692 mole Fe) = 0.469 mole FeCl3
.
After the process, you will possess 0.469 moles of iron(III) chloride.
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A recipe for chocolate cake calls for 236.6 mL of buttermilk.
But your measuring spoons only measure in cmº. How many
cm3 of buttermilk do you need so that the recipe is followed?
cm3
Answer:236.6
Explanation:
arsenic does not have any valence electrons in the 3D orbital because
Answer:
3d orbital is completely filled.
Explanation:
if 125g of KClO3 is heated, what is the total mass of the products?
Given parameters:
Mass of KClO₃ = 125g
Unknown:
Total mass of the products = ?
When KClO₃ is heated, it thermally decomposes to KCl and O₂ according to the chemical equation below;
2KClO₃ → 2KCl + 3O₂
All chemical equations obeys the law of conservation of matter and with this regard, we know that the amount of reactants used is the same as that of the product.
The total mass of the products must give us 125g according to this law of conservation of matter.
Now to find the masses of each product,
Find the number of moles of the given reactant:Number of moles = [tex]\frac{mass}{molar mass}[/tex]
molar mass of KClO₃ = 39 + 35.5 + 3(16) = 122.5g/mol
So number of moles of KClO₃ = [tex]\frac{125}{122.5}[/tex] = 1.02moles
2. Now, using this number of moles, find the number of moles of the products using this value;
2 moles of KClO₃ produced 2 moles of KCl
1.02 moles of KClO₃ will also produce 1.02moles of KCl
2 moles of KClO₃ produced 3 moles of O₂
1.02 moles of KClO₃ will produce [tex]\frac{1.02 x 3} {2}[/tex] mole = 1.53 moles of O₂
3. Now find the masses of each product;
Mass = number of moles x molar mass
molar mass of KCl = 39 + 35.5 = 74.5g/mol
molar mass of O₂ = 16 x 2 = 32g/mol
Mass of KCl = 74.5 x 1.02 = 75.99g
Mass of O₂ = 32 x 1.53 = 48.96g
Total mass of products = mass of KCl + Mass of O₂ = 75.99g + 48.96g
= 124.95g
This value is approximately the same as that of mass of KClO₃
1. Write the electron configuration for Al (aluminum). Then, write the noble gas configuration. Finally, draw
the orbital diagram. (Non-anonymous question ) (50 Points)
Answer:
[Ne] 3s² 3p¹
1s2 2s2 2p6 3s2 3p1
Explanation:
how objects with different masses and volumes have the same density?
Answer:
mass and volume are independent. Two objects with the same volume can have different masses hence they can have different densities
Explanation:
The mass of atoms their size and how they are arranged determine the density
(02.07 MC
As you move down group one of the periodic table, what happens to the atomic radil? (4 points)
Answer:
It increases
Explanation:
The atomic radii increases because you are adding more shells/electrons
Which ion was formed by providing the second ionization energy to remove an electron?
Ca2+
N3–
Fe3+
S2–
Answer:
Ca2+
Explanation:
I took the test lol
Answer:
Ca2+
Explanation:
i just did the test
How many moles of gold (Au) are there in 3.01 X 10^23 atoms of gold (Au)?
