Answer:
B
Explanation:
The mantle is composed of the mesosphere and the asthenosphere in the upper most part and in the crust is the lithosphere
If I had a mole of pizzas how many pizzas would I have?
Answer:
6.02 x 10²³ pizzas
Explanation:
If one has a mole of pizzas, they will have 6.02 x 10²³ pizzas amount.
A mole of a substance is a convenient unit of quantity of particles. It can be likened to a dozen, a score and a gross.
A dozen is 12, a score is 20 and gross is 144
A mole of a substance contains the Avogadro's number of particles.
The particles are atoms, molecules, formula units, electrons, protons, neutrons and so on.
So, if we have a mole of pizza, we would have 6.02 x 10²³ pizzas.
The box in the above picture is falling from the top of a building to the ground. Two major forces are acting on the box as it falls. Which force is represented by the arrow labeled Q?
A.
the force of magnetism
B.
the force of gravity
C.
the net force of the object
D.
the force of air resistance
Answer:
I think it's B
Explanation:
apologies if I get this wrong
Answer:
The correct answer is B. The force of gravity.
Explanation:
Gravity affects all objects falling through the Earth's atmosphere. Gravity pulls down on a falling object.
( I got it on study Island as well )
Calculate the molarity of a solution when 0.500 pound of silver nitrate is dissolved in enough water to prepare 16.75 L of solution.
Molarity of the solution = 0.08 M
Further explanationMolarity is a way to express the concentration of the solution
Molarity shows the number of moles of solute in every 1 liter of solute or mmol in each ml of solution
[tex]\large{\boxed {\bold {M ~ = ~ \frac {n} {V}}}[/tex]
Where
M = Molarity
n = Number of moles of solute
V = Volume of solution
0.5 lb=226,796 g
MW silver nitrat - AgNO₃ = 169,87 g/mol
mol AgNO₃ :
[tex]\tt mol=\dfrac{mass}{MW}=\dfrac{226.796}{169.87}=1.335[/tex]
Molarity :
[tex]\tt M=\dfrac{1.335}{16.75}=0.08[/tex]
Answer:
hi erza are u online. okkklll
The pH of an aqueous solution of hydrochloric acid is 2. What is the pH of the solution after the addition of 10 g of sodium chloride?
Answer:
wala ako alam sagot sorry
Bond energy needed to break or create bonds is measured in units called
A horsepower
B. calories
C. kilojoules
D. newtons
(Edit)
Correct Answer is "C"
Answer:
C. kilojoules
Explanation:
The bond energy needed to break or create bonds is measured in units called kilojoules.
Bond energy is a form of enthalpy change of a reaction or physical change. The bond energy is the heat content of a covalent bond formed from its constituent elements in the gas phase.
The bond energy is the same in value as the bond dissociation energy and its unit is given in kilojoules.
In which image is the wave amplitude the greatest?
4
3
2
1
can i has help?
A 2-column table with 7 rows. The first column labeled Material has entries aluminum, iron, lead, sand, steel, wood, water. The second column labeled Specific Heat (Joules per gram times degrees Celsius) has entries 0.90, 0.44, 0.16, 0.83, 0.49, 1.80, 4.18.
Use this chart showing the different specific heat of various materials to answer the questions.
Which material has the highest specific heat?
Which material has the lowest specific heat?
Which material has the ability to absorb twice as much heat as aluminum when placed in the same environment of mass and temperature?
Answer:
water, lead, and wood
Explanation:
All are correct on Edg 2020
Answer:
Which material has the highest specific heat?
water
Which material has the lowest specific heat?
lead
Which material has the ability to absorb twice as much heat as aluminum when placed in the same environment of mass and temperature?
wood
Explanation:
HELP!!!
what is A polyatomic ion composed of an element bonded to at least one oxygen atom
i’ll give brainlest
Frank is skating with his friends. His nonverbal communication is sending several messages. Which of the following below best describes the messages he is sending, both consciously and unconsciously?
a.
formal, serious, shy, closed, uncertainty, exhaustion, confusion
b.
casual, fun, concentration, warmth, confidence, health, carefree, open
c.
culture, class, confidence, success, work ethic, tradition, excel
d.
fear, anxiety, uncertainty, risk, isolation, danger, loneliness, pain
Answer: d i just took the test
Help plz it due in 20 mins
The answers are: T, T, F, T, T, T
Answer:
True
True
False
True
True
True
Explanation:
What are the coefficients when the equation below is balanced?
_CH4 + _O2 = _CO2 + _H2O
A) 2,2,1,2
B) 1,2,3,4
C) 1,3,4,1
D) 1,2,1,2
Answer:
Explanation:
it would be A) 2,2,1,2 hottie!
Which solution has the greatest number of hydroxide ions?
i need a friend....
Answer:
homogeneous solutions
Scientists find a fossil of a fish on top of a mountain. What kind of evidence does the fossil provide scientists about the way this area might have changed over time?
Group of answer choices
It shows that fish were once able to live without water.
It shows that oceans can change quickly and become land.
It shows that the animals found on the mountain today evolved from fish.
It shows that the mountain may have once been under water and was raised by natural processes
Answer:
It shows that the mountain may have once been under water and was raised by natural processes. Maybe
The fossil provide scientists about the way this area might have changed over time, the evidence It shows that the mountain may have once been underwater and was raised by natural processes.
What is fossil ?Any surviving remnants, impression, or evidence of a once-living creature from a previous geological epoch is referred to as a fossil. Examples include fossilized bones, shells, exoskeletons, animal or microbe impressions in stone, amber-preserved artifacts, hair, petrified wood, oil, coal, and DNA traces.
There are four basic categories of fossils, each generated in a unique method and useful for conserving various kinds of animals. These include genuine form fossils, trace fossils, mold fossils, and cast fossils.
Usually, sedimentary rocks include fossils, however rarely, low-grade, fine-grained metamorphic rocks will as well. Sometimes, after the fossils have been removed, the surrounding rock has developed molds.
Thus, option D is correct.
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what is the most reactive metal in Period 4 of the periodic table?
According to the electronic configuration, the most reactive metal in Period 4 of the periodic table is potassium.
What is electronic configuration?Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.
Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.
Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.
Learn more about electronic configuration,here:
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what is the molar mass of Agl2
Answer:
107.8682
Explanation:
....................
which of the following is an example of a Brønsted-Lowry base?
Answer:
it's ammonia. option a
Explanation:
a
What is an inorganic chemical?
A. A chemical that contains carbon atoms
B. A chemical that does not take part in reactions
C.A chemical that makes up living things
D.A chemical that is not from living things
I'd appreciate anyone's help
Answer:
D.A chemical that is not from living things
The elementary reaction_.
A)converts reactants to products in a single step
B )has only elements as reactants
C )has only elements as products
D) never needs a catalyst
Answer:
Explanation:
give me examples of everyday problems you think involve the green substances copper acetate or copper sulfate.
Answer: Copper sulfate is also called blue vitriol, Roman vitriol, Salzburg vitriol, blue copperas or bluestone, which is an inorganic or chemical compound comprised of Copper, Sulphur and Oxygen. It is an odorless crystalline substance, electric blue and highly toxic, which is produced in industries by treating the copper metal with hot concentrated sulfuric acid or treating its oxides with dilute sulfuric acid. It can be produced by slowly leaching low-grade copper ore in air and bacteria may be used to hasten the process.
PLEASE HELP WILL MARK BRAINLIEST!!!
Answer:
#1. E
#2. A
#3. D
#4. F
#5. C
Please give me brainliest
Which of the following solutions of glucose in water will have the lowest freezing point?
(The molar mass of glucose is 180 g/mol.)
Answer:
B
Explanation:
Colligative properties are properties that depend on the amount of substance present.
Freezing point is a colligative property hence it depends on the number of moles of the glucose present in solution. The bigger the concentration of the glucose molecules, the greater the freezing point depression. So, the largest freezing point depression is observed for the solution having the highest concentration of glucose.
Can anyone help? The instructions are in bold.
Answer:rarrrrrrr
Explanation:
When purchasing an electrical device, what are the 2 financial costs you need to consider?
Answer:
How much electricity is uses and any repairs
Explanation:
When purchasing an electrical device, the two financial costs you need to consider are the initial price of the device and the operating costs to make use of the device.
The financial cost is the cost of finance charged per item purchased, it may also include miscellaneous charges associated with the usage of the item.
Here, before you purchase the electrical device, think carefully if:
the initial price fits into your budget and;the consumption of the electricity bills(operating costs) the electrical device will consume.Learn more about financial costs here:
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Pls help
Protons: 4
Neutrons: 4
Electrons: 3
What element is it ?
Boron
Aluminum
Beryllium
Carbon
Answer:
The answer would be beryllium
You were probably confused but the correct answer would actually be a beryllium ion.
Josh is washing glasses with soap and water. He is afraid to
carry the glasses because they are slippery. What might he find in the
kitchen that he could use to keep the glasses from being slippery? Explain.
Josh is washing glasses with soap and water. He is afraid to carry the glasses because they are slippery. Josh could dry them with a towel to keep the glasses from being slippery.
What are glasses ?Glasses are visual eyewear that have lenses fixed in a frame that holds them in front of a person's eyes. The frame often has a bridge over the nose and arms that rest over the ears. Glasses are also known as eyeglasses or spectacles.
The term "glasses" likely originated from the word "spyglass," which was originally used to describe "a pair of eyeglasses" that had to be held up to the eyes in order to be fully effective.
Eyeglasses, often known as glasses or spectacles, are lenses that are mounted in frames and worn in front of the eyes to improve vision or to correct astigmatism, myopia, or hyperopia.
Thus, Josh could dry them with a towel to keep the glasses from being slippery.
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compounds pure substances made of two or more types of _____ and are _____ _______
Answer: chemical substance
Explanation:
Please help anybody
What is the symbol for tin on the periodic table
and how many protons does it have?
Answer:
Symbol for tin- Sn
No. of protons =50
Explanation:
Hope this helps you
Crown me as brainliest
Earth’s rocks change from one type into another, as described in the rock cycle. TRUE OR FALSE
Question
Select all the correct answers.
Which statements are true about all waves?
It’s caused by a disturbance.
It requires a medium to travel.
It carries energy.
It carries matter.
Answer:
It’s caused by a disturbance.
It carries energy.
Explanation:
A wave is a disturbance that transmits energy from one point to another. It does no necessarily carry the particles or matter of the medium.
Waves usually carries energy. It is this energy they use in creating disturbances.
Not all waves carries matter; a good example is electromagnetic waves. Also, electromagnetic waves do not require a medium for propagation.
