Answer:
I think magniesum is combined with the sulfer which is why its at 3 omegas.
Hope this helps!
Explanation:
Which is the variable that you are measuring and observing for?
O Dependant Variable
Independant Variable
Constant
O Exponent
Answer:
Dependent variable
Explanation:
its what you measure
8.08 x 1022 atoms of krypton
PLEASE
Answer:
8.08 x 10^22 atoms/1 = 1 mol/6.02 x 10^23 atoms
Thank you much!
in acidic medium dichromate Ion oxidized ferrous sulphate to ferric sulphate and and it self reduced to chromium 3 + ions write a balanced equation to represent this this redox reaction use Ion electron method
Answer:
Cr
2
O
7
2−
+14H
+
+6Fe
2+
→2Cr
3+
+6Fe
3+
+7H
2
O
During the reaction, the oxidation number of Cr decreases from +6 to +3. Net decrease in the oxidation number of one Cr atom is 6−3=3. For 2 Cr atoms (in dichromate ion), the total decrease in the oxidation number is 2×3=6
The gram equivalent weight =
Total change in the oxidation number
gram molecular weight
=
6
294
=49
An atom has 10 protons and 10 neutrons, what is the elements mass number?
Scientists think that Pangaea separated due to
O A. climate changes.
B. continental drift.
C. weathering.
D. glaciers.
Why is an atom considered electrically neutral?
Explanation:
A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral.
Answer:
.
Explanation:
A proton and an electron have an equal amount but an opposite type of charge. Thus, if an atom contains equal numbers of protons and electrons, the atom is described as being electrically neutral.
Please help brainiest
Despite the superior intellect of our lab workers, none of the problems above actually caused the discrepancies. This occurs sometimes with unexpected or unexplained results, where multiple hypotheses can explain the cause of the discrepancy occur. Here is a challenge: closely examine each video, and see if you are more observant than our lab workers by determining the actual source of the error.
Answer:
Haven't evaporated all of the water
Explanation:
One of the main sources of error that occur in a formula of a hydrate lab is that all of the water is not evaporated. We can see at the end of the video that half of the CoCl2 is a light blue colors and the other half is a dark blue color. This indicates that all of the water still has not been evaporated off, resulting in the actual mass of the salt to be greater than the predicted value.
a d d m y s n a p gianavaughn007 ;)
please help :))
Look at the displacement reaction in the experiment below. To balance this equation what number should go in front of copper in the products?
Answer:
3
Explanation:
Al + CuSO₄ → Al₂(SO₄)₃ + Cu
two aluminum atoms in products. put 2 in front of Al in reactants.
2 Al + CuSO₄ → Al₂(SO₄)₃ + Cu
three sulfur atoms and twelve oxygen atoms in products. put 3 in front of CuSO₄ in reactants.
2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + Cu
three copper atoms in reactants. put 3 in front of Cu in products.
2 Al + 3 CuSO₄ → Al₂(SO₄)₃ + 3 Cu
The equation is balanced. Hope that helps.
The right answer is "3"
Answer explanation:
To balance an equation, there needs to be the same number of each atom on both sides of the equation
a) Complete the table below. b) You will use this information as a guide in creating your comic strip. c) The information for the Golgi body has already been filled in for you as an example. Structure of Cell Function Factory Part or Worker Golgi body Packages materials and distributes them within A factory worker who puts products or out of the cell in boxes and transports packaged products to the warehouses or to trucks that will leave the factory Cell wall Cell membrane
plzzz i need help!!!!
Answer:
1. Chief executive officer = Nucleus.
2. Power house = Mitochondrion.
3. Maintenance team = Lysosomes.
4. Functional managers = Chromosomes.
5. Assembly line workers = Ribosomes.
6. Assembly line = Endoplasmic Reticulum.
7. Security and support = Cytoskeleton.
8. Drivers or messengers = Vesicles.
9. Packaging unit = Golgi apparatus.
10. Gate man/procurement unit = Cell membrane.
Explanation:
A cell can be defined as the structural, fundamental, biological and functional unit of life. Cells are found in all living organisms because they are the basic unit of life.
Generally, cells have the ability to independently replicate themselves. These cells can be compared to the kind of structures found in a business or factory, where you have different workers performing different functions.
In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles.
Factory worker = Cell organelle.
1. Chief executive officer = Nucleus.
The nucleus controls all the activities taking place in the cell and the synthesis of proteins.
2. Power house = Mitochondrion.
The mitochondria provides all the energy required in the cell by transforming energy forms.
3. Maintenance team = Lysosomes.
They are responsible for absorbing materials and breaking the materials taken in by the cells.
4. Functional managers = Chromosomes.
They give sets of instructions for the synthesis of products.
5. Assembly line workers = Ribosomes.
They are involved in the build up of proteins.
6. Assembly line = Endoplasmic Reticulum.
This is where the ribosomes perform their tasks.
7. Security and support = Cytoskeleton.
They help to maintain and support the shape of the cells.
8. Drivers or messengers = Vesicles.
They ensure proteins are properly transported to the right and exact location.
9. Packaging unit = Golgi apparatus.
Prepares the protein for export by chemically tagging them.
10. Gate man/procurement unit = Cell membrane.
It is the wall of the cell and typically controls what leaves and enters the cell.
Calculate the number of atoms in a 1.05 x 10^3 mole sample of argon.
Answer:
6.32*10²⁶ atoms
Explanation:
Use Avogadro's Number to convert to atoms.
[tex]1.05*10^3 mol Ar * \frac{6.022*10^23 atoms}{1 mol Ar}[/tex]
a water tank can hold 0.50m^3 of water. When it’s half full, how many liters are needed to refill it?
Answer:250
Explanation:
Which of the following ways can the volume of a gas be changed, without changing its mass? Select all that apply.
It can be compressed into a smaller container.
It can be spread out into a larger container
It can be dissolved into a liquid.
It can increase the number of particles
It can be heated up.
Answer:
It can be spread into a smaller container
It can ve spread out into a larger container
It can be dissolved into a liquid
Answer:
the answers are
It can be compressed into a smaller container.
It can be spread out into a larger container.
It can be dissolved into a liquid.
It can be heated up.
Explanation: I just did the assignment and these were the correct answers
What is the volume of a rock that has a mass of 50 grams and a density of
5 g/ml?
Explanation:
density = mass/ volume
so,
volume = mass/ density
volume = 50 g/ 5 g/ml³
volume = 10 ml³
Which of the following statements correctly describes density? a Density is an intensive property because it does not depend on the amount. b Density is an intensive property because it depends on the amount of a substance. C Density is an extensive property because it depends on the amount of a substance. d Density is an extensive property because it does not depend on the amount.
Answer:
Density is an intensive property because it does not depend on the amount
Explanation:
Taking into account the definition of density, intensive properties and extensive properties, density is an intensive property because it does not depend on the amount of a substance (option a).
Intensive propertiesIntensive properties of matter are defined as those that do not depend on the amount of material in a body.
This means that they will remain the same even if the amount of matter in a body varies.
Extensive propertiesExtensive properties of matter are defined as those that depend on the amount of material in a body.
The greater the mass or the greater the size of the body or system, the greater the proportion of that property.
What is densityDensity is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.
In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance. Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
[tex]density=\frac{mass}{volume}[/tex]
The density of a body will always be the same regardless of its mass. So density is an intensive property.
Correct statementConsidering the definition of density, intensive properties and extensive properties, density is an intensive property because it does not depend on the amount of a substance (option a).
Learn more about density:
brainly.com/question/952755
brainly.com/question/1462554
It took 3 hours for a train to travel the distance between two cities at a
velocity of 290 miles/hour. What is the DISTANCE between the two cities?
Pls hurry!
Answer:
The answer is 870 milesExplanation:
The distance covered by an object given it's velocity and time taken can be found by using the formula
distance = velocity × timeFrom the question
velocity = 290 miles/hour
time = 3 hours
The distance between the two cities is
distance = 290 × 3
We have the final answer as
870 milesHope this helps you
Valerie wants to examine the properties of a thick liquid but is finding it difficult to pour the liquid into a beaker. She needs to finish her investigation before the end of class. Which method will allow her to pour the liquid easily?
boiling the liquid vigorously
applying heat to the liquid
placing the liquid in the refrigerator
mixing the liquid with another solution
Answer:
B. applying heat to the liquid
Explanation:
Edge2020
Have a great day y'all :)
Applying heat to the liquid allows Valerie to pour the liquid easily, hence option B is correct.
How does heat causes melting of thick liquid?A physical process called melting or fusing causes a substance to change its phase from a solid to a liquid.
This happens when the solid's internal energy rises, usually as a result of heat or pressure being applied, which raises the substance's temperature to the melting point.
A solid's particles generate enough energy during heating to overcome the strong bonding forces holding them tightly together.
When the mobility of the molecules in a solid accelerates to a point where it outweighs the attraction between the molecules, melting takes place.
Therefore, by applying heat to the liquid allows her to pour the liquid easily, hence option B is correct.
Learn more about plate melting, here:
https://brainly.com/question/11331049
#SPJ7
I Need Help With This I’m so Confused on it.
Answer:
i need help wit dat twoExplanation:
yeah........
The default setting shows two people holding one object each. The mass of the blue object is 38 kilograms, the red one 25 kilograms. Note that the value of force each object applies on the other is the same (0.00000000396 newtons), but in the opposite direction. This value is written in standard notations. Express this value in scientific notation.
Answer:
3.96 × 10-9
Explanation:
Answer: 4.1712 x 10^-8
Explanation:
Question 3
Which is the simplest form of a crystalline solid?
Answer:
metals is the simplest form of crystalline solid
How are heterogeneous and homogeneous mixtures separated?
Answer:
Explanation:
In heterogeneous mixtures, two or more ingredients (or phases, regions with uniform composition and properties) intermingle, but remain physically separate. Often it is possible to separate the original ingredients by physical means, such as filtering.
Calculate the number of C atoms in 11g of carbon dioxide
Answer:
1.51× 10²³ C atoms
Explanation:
Given data:
Mass of CO₂ = 11 g
Number of atoms in 11 g of CO₂ = ?
Solution:
First of all we will calculate the number of moles of CO₂ .
Number of moles = mass/ molar mass
Number of moles = 11 g/ 44 g/mol
Number of moles = 0.25 mol
One mole of CO₂ contain 1 mole of C atom.
0.25 mole of CO₂ contain 0.25 moles of C atom.
The number of C atoms in 0.25 moles will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number .
11 g of CO₂ = 0.25 moles of C = 0.25 × 6.022 × 10²³ C atoms
1.51× 10²³ C atoms
Compare and contrast the properties of charcoal and carbon dioxide.
Answer:
Incomplete combustion of carbon occurs if enough air is not available to convert all of it to carbon dioxide, and in such as case carbon monoxide is formed by the addition of half the amount of oxygen as is present in carbon dioxide, to the carbon atom, namely, CO instead of CO2.
Explanation:
Shale forms from tiny particles of which material?
A. Mica
B. Sand
C. Clay
D. Obsidian
Answer:
a. mica
Explanation:
How many moles of copper are in 8.5 x1024 atoms of copper?
Answer:
The answer is
14.12 molesExplanation:
To find the number of moles of an element given the number of entities in the element we use the formula
[tex]n = \frac{N}{L} \\[/tex]
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
N = 8.5 × 10²⁴ atoms of copper
We have
[tex]n = \frac{8.5 \times {10}^{24} }{6.02 \times {10}^{23} } \\ = 14.11960132...[/tex]
We have the final answer as
14.12 molesHope this helps you
Select the correct answer.
Which sentence is a scientific statement?
A.
Long hair looks better than short hair.
B.
Brick structures insulate better than wooden structures.
C.
Milkshakes should always be sweetened with honey.
D.
There is a large, apelike creature living in the Himalayas.
Answer:
B
Explanation:
Most of these are opinions. the reason that it is not d is because it is not something that can be scientifically proven. b can be proven by facts. hope this helps!
who would you rather date. . .
zuko
sokka
aang
toph
katara
suki
Answer:
katara
Explanation:
I would rather date zukoo
common element in all the organic compound another than hydrogen is
Answer:
Although all organic compounds contain carbon, and almost all have hydrogen, most of them contain other elements as well. The most common other elements in organic compounds are oxygen, nitrogen, sulfur, and the halogens.
Explanation:
I hope this helped!
Question 12 of 32 Which of the following do all living things have in common? O A. All living things are made up of at least one cell. B. All living things are made up of many cells. I O C. All living things eat other living things for energy. D. All living things breathe oxygen. SUBIN
Answer:
A
Explanation:
It cant be B because of single celled organisms and it cant be C because or photosynthesis and it cant be D because plants take in carbon dioxide
