you and a friend each hold one end of a long spring toy and shake it back and forth to make waves. What is the medium fot these waves? A:Your friends hand
B:The air C:The spring D:Your hand

Answers

Answer 1
C. the spring brainliest pls

Related Questions

Saturated solution of an ionic compound has a

Answers

answer: larger chemical amount of solute than solvent.

Saturated solution of an ionic compound has a larger chemical amount of solute than solvent. A saturated solution contains more solute than solvent. Therefore, option B is correct.

What is saturated solution ?

The term saturated solution is defined as a solution in which the maximum amount of solvent has been dissolved than solute. For example when the additional solute will not dissolve in a saturated solution that is Sugar solution.

A saturated solution contains the maximum amount of solute that can be dissolved under the given conditions. The rate of crystallization is determined by the amount of solute at the crystal surface.

Saturated solution of an ionic compound has a larger chemical amount of solute than solvent.

Thus, option B is correct.

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1. The actual value for absolute zero in degrees Celsius is −273.15. Use the formula below to determine your percent error for both gas samples.
|experimental value – actual value| x 100
actual value

Answers

The Percent error for ice and salt water is 94.55%. The Percent error for ice water is 100.40%.

What is absolute zero?

Absolute zero is the temperature whereby a system in its balanced state contains the lowest energy that corresponds to -273.15 °C.

Using the formula for Percent error, we have:

[tex]\mathbf{percent \ error = \dfrac{|experimental \ value| - |actual \ value| }{|actual \ value|} \times 100\%}[/tex]

For ice and salt water:

[tex]\mathbf{percent \ error = \dfrac{|-14.9 -(-273.15)| }{|-273.15|} \times 100\%}[/tex]

Percent error = 94.55%

For Ice water:

[tex]\mathbf{percent \ error = \dfrac{|1.1 -(-273.15)| }{|-273.15|} \times 100\%}[/tex]

Percent error = 100.40%

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How many grams of sodium chloride are present in 11.00 moles?
331.0 g
4500 g
156.6 g
642.9 g

Answers

The answer to you’re question is the last one 642.9 grams.

What is one way to spearate awater an salt

Answers

Answer: You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water.

Hope this helped!

Answer:You can boil or evaporate the water and the salt will be left behind as a solid. If you want to collect the water, you can use distillation. This works because salt has a much higher boiling point than water.

Explanation:

hope it hepls

How many moles of water are produced when 5 moles of hydrogen gas react with 2 moles of oxygen gas? (5 points)
2 moles of water
4 moles of water
5 moles of water
7 moles of water

Answers

Answer: 4 moles of water

Explanation:

A sample originally contains 24 grams of a radioactive isotope. After 18 days, 18.8 grams of the isotope remain in the sample. What is the half-life of the isotope

Answers

Around 36 or 37 days, because of the decimal

The sample's decay constant for the given time of radioactive decay is 0.0058 days⁻¹. Thus, the half life of the sample is 119.48 days.

What is radioactive decay?

Heavy unstable radioactive nuclei undergo radioactive decay by the emission of charged particles. They stable isotopes or new atoms by radioactive decay.

It is given that the sample of 24 grams decays to 18.8 grams within 18 days. The decay constant k can be calculated as follows:

k = 1/t log (Ci/Ct)

Where Ci is the initial amount and Ct be the final amount.

k = 1/18 log (24 g /18.8 g)

  = 0.0058  days⁻¹

Now, the half life time of the sample can be calculated as:

t1/2  = 0.693 / k

      = 0.693/0.0058  days⁻¹

      = 119.4 days.

Therefore, the half life of the sample is 119.4 days.

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What is the relative abundance of oxygen in the atmosphere?

Answers

Answer:

20.95%

Explanation:

Name the functional group in the
following molecule:
NH2
A. aldehyde
B. amine
C. amide
D. thiol

Answers

Answer:

The functional group is called a amide so its, C.

Explanation:

4. Which is a clastic rock?
A
coal
B.
limestone
U
rock gypsum
D
sandstone

Answers

Answer:

B limestone

Explanation:

What was the concentration of my stock solution if I used 23mL of it to make 102 ml of 1.4 M dilution?

Answers

Answer:

formula:c1v1=c2v2

Explanation:

v1=102ml,c1=1.4mol/l

v2=?;c2=2.4mol/l

v2=v1×c1÷c2=102ml×1.4mol/l÷2.4mol/l

=59.5ml

i hope this will help you

how many grams of sulfur can be formed from 108g of sulfur dioxide?

Answers

Answer:

1.99 grams

Explanation:

hope this helps

A solution has a concentration of 0.8 M and contains 15 g AgBrO3. What is the volume of the solution

Answers

Answer:

Solution Concentration: Molarity Moles of solute in one liter of solution Used because it describes how many molecules of solute are in each liter of solution Tro: Chemistry: A Molecular Approach, 2/e 6 amount of solute (in moles) Molarity, M = amount of solution (in L) moles of solute M = L of solution or simply 4

GOOD LUCK!!

A solution has a concentration of 0.8 M and contains 15 g AgBrO3.The volume of the solution is 0.08 L.

What do you mean by the term molarity ?

The term molarity is defined as the number of moles of solute per litre of solution. Molarity, M = amount of solution (in L) moles of solute M = L of solution.

It is also called as molar concentration. As the number of moles of solute is measure out in mol and the volume of solution will be in litre. Hence, the unit of molarity is mol L - 1.

Given:

Molarity = 0.8 M

Mass = 15 gram

The molar mass for AgBrO3 = 235.769 g/mol.

Then calculate the number of moles in the sample by dividing the given mass by the molar mass.

15g 235.769 g/mol = 0.064 moles

Molarity = Number of moles/volume

Volume = Number of moles/Molarity

Volume = 0.064/0.8 M

Volume = 0.08 L

Thus, the volume of the solution is 0.08 L.

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There is oil that is coming up on the beach from the waves. What most likely caused the oil to get in the water?

Animals have carried oil from land to the water.
An accident caused an oil rig to spill oil into the ocean.
The wind has blown oil into the ocean from land.
The oil has come from a crack in the ocean floor.

Answers

Answer:

The answer is (B) An accident caused an oil rig to spill oil into the ocean.

Explanation:

Someone would know that they are polluting the ocean but someone left it there so the water or and accident cause the oil rig to spill.

Answer:

The answer is (B) An accident caused an oil rig to spill oil into the ocean.

Explanation:

The answer is (B) An accident caused an oil rig to spill oil into the ocean.

Balance the following chemical equation:
As4S6+
02
->
As406+
SO2
What the answer

Answers

As4S6+9O2 —> As4O6+6SO2

which two events are apart of the rock cycle

Answers

Answer:

The key processes of the rock cycle are crystallization, erosion and sedimentation, and metamorphism.

Explanation:

mark me brainliest!!

Answer:

Earths heat and hydrological cycle

Explanation:

Which of the following best describes the impact of glaciers upon the surface of the earth? a. ice buried continents under a few hundred feet of ice. b. glaciers scraped across the surface and altered landscapes and the course of rivers. c. the passage of glaciers created new ecosystems. d. all of the above. please select the best answer from the choices provided a b c d

Answers

Glaciers scraped across the surface and altered landscapes and the course of rivers best describes the impact of glaciers upon the surface of the earth.

What are glaciers?

Glaciers are the huge big bodies which are formed by the compression of fallen snow on the land and converts into the ice.

Glaciers shows movement due to the gravitational force and this movement of glaciers will carry sediments, rocks and soil with it self. So, the glacier movement will affect the land by destroy the shape of land surface due to the transfer of land materials and sometimes block the path of rivers also.

Hence, option (b) is correct.

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Answer: B

Explanation:

Edge 2022

How many grams are there in 0.37 moles of H20?

Answers

Answer:

18.01528 gram using the molecular weight calculator and the molar mass of H2O.

Explanation:

Choose a celebrity who died due to an overdose of drugs or alcohol and answer the following questions in your discussion post:

1)What is the name and cause of death of the celebrity?
2)What drug(s) was indicated in the death of this person?
3)What type of drug was it? (Depressant, stimulant, hallucinogenic, etc.)
4)What are the typical effects of that drug?
5)How is the drug typically identified and analyzed in the Toxicology lab?
6)List one question that you would ask the friends and family of the deceased to help with the investigation.

Answers

Answer:

Jay Bennett

Fentanyl

Opioid

extreme happiness, drowsiness, nausea, confusion, constipation, sedation, tolerance, addiction, respiratory depression and arrest, unconsciousness, coma, and death.

In Urine

Why did Jay overdose on Fentanyl?

Explanation:

I looked all of this up

61.2 grams of hydrogen sulfide react with 64.0 grams of Sulfur dioxide and produce 62.2 grams of solid sulfur (S8). (a) What amount of solid sulfur do you expect to be produced, theoretically, by the reaction with the given quantities of reactants? (Limiting reagent problem

Will mark brainliest ​

Answers

Reaction

8SO₂ + 16H₂S → 3S₈ + 16H₂O

find limiting reactant

mol SO₂ = 64 : 64 g/mol =  1

mol H₂S = 61.2 : 34 g/mol = 1.8

ratio mol:coefficient

SO₂= 1 : 8= 0.125

H₂S=1.8 : 16 = 0.113

H₂S as a limiting reactant (smaller ratio)

mol S₈ will be based on limiting reactant (H₂S)

mol S₈ = 3/16 x 1.8 = 0.3375

mass S₈ = 0.3375 x 256 = 86.4 g

A sample of neon is at 75 C and 115 kPa. If the pressure changes to 127 kPa and the volume remains constant, what is the new temperature, in C?

Answers

The new temperature of the sample of neon is 111.31 °C.

What is temperature?

Temperature can be defined as the hotness or coldness of a thing or place.

To calculate the new temperature of the sample of neon, we apply the formula below.

Formula:

P/T = P'/T'.................. Equation 1

Where:

P = old pressure valueP' = new pressure valueT = old temperature valueT' = new temperature value.

Make T' the subject of the equation

T' = P'T/P............ Equation 2

From the question,

Given:

P' = 127 kPaP = 115 kPaT = 75 °C = (75+273) = 348 K

Substitute these values into equation 2

T' = (127×348)/115T' = 384.31 KT' = (384.31-273) °CT' = 111.31 °C

Hence, The new temperature of the sample of neon is 111.31 °C.

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student has two balloons, one filled with helium and one filled with argon. Each balloon has a volume of 22.4-L at STP. Which of the following correctly describes these samples

Answers

The statement that can be made about the samples is that each balloon contains 1 mole of each gas.

What is molar volume?

Molar volume refers to the volume that is occupied by one mole of a gas. According to Avogadro, the volume occupied by one ole of  a gas is 22.4-L at STP.

Hence, if 22.4-L at STP is the volume of both the helium and argon filled balloons, then each balloon contains one mole of the gas.

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If 50 grams of Al2O3 was produced, how many moles of aluminum reacted?

Answers

Answer:

one mole of aluminium has reacted in it.

Explanation:

Al : Al2O3=100 gmol-1

4 : 2

2 : 1mol→100g

1 : }50g→1/2mol

Nitrogen gas and hydrogen gas react to produce ammonia according to the following equation.

N2 + 3H2 → 2NH3

The atomic mass of nitrogen is 14 g/mol. The atomic mass of hydrogen is 1 g/mol. When the reaction produces 68 grams of ammonia, how many grams of nitrogen were present initially?

A 112
B 4
C 56
D 12

Answers

Answer:

C

Explanation:

First we have to find the molar mass of NH3 which we can do by adding the atomic masses of all the constituents. 14+3(1) = 17g/mol. Then we convert the grams of ammonia to moles. 68/17=4 moles of ammonia produced. According to the equation, one mole of nitrogen gas corresponds to two moles of ammonia, so for our 4 moles of ammonia, 2 moles of nitrogen gas were there originally. Then we convert that figure into grams using the molar mass of nitrogen gas. 2(14) = 28g/mol and 28*2=56 grams of nitrogen gas.

How many formula units are in 2.0 mol of sodium chloride?​

Answers

the answer should be 1.204*10^23

What is the heat of combustion of ethane, c2h6, in kilojoules per mole of ethane?.

Answers

Combustion is the process in which CO₂ is react with reactant. Heat of combustion of ethane is 1560 kilo joule per mole.

What is combustion ?

Combustion is the process in which oxygen is react to form heat or energy. There are three types of combustion as follows

spontaneous combustion

rapid combustion

explosive combustion

Combustion is a chemical reaction between substances, mostly including oxygen and usually followed by the generation of heat and light in the form of flame.

Combustion is the other word for burning. In a combustion reaction, a fuel is heated and it reacts with oxygen and their is energy released.. The fire triangle require the three things for combustion - a fuel, heat and oxygen.

Thus, combustion of ethane gives 1560 kilo per joule energy.

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Compare ferns, gymnosperms, and angiosperms by writing each characteristic in the box underneath the correct plant type. • reproduce with cones • reproduce with spores • reproduce with flowers • existed the longest in Earth history • newest type of plant in Earth history • has needle-like, waxy leaves 1)

Answers

Ferns reproduce with spores which existed the longest in Earth history.

Gymnosperms reproduce with cones and has needle-like, waxy leaves.

Angiosperms reproduce with flowers and newest type of plant in Earth history.

How ferns, gymnosperm and angiosperm reproduce?

Ferns reproduce with spores that existed the longest in Earth, gymnosperms reproduce through the formation of cones having needle-like, waxy leaves whereas angiosperms reproduce with flowers which turns into seed. The newest type of plant in Earth history is also belongs to this group.

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CHEMCIAL TECHNOLOGY QUICK CHECK which activity would be considered resource extraction? eating beef raising cattle eating deer hunting deer WILL GIVE BRAINIEST TO WHOEVER GOVES ME THE WHOLE QUICK CHECK

Answers

Hunting deer can be considered resource extraction. It involves the loss of biodiversity.

What does resource extraction mean?

Resource extraction refers to the usage of fundamental resources (biodiversity resources) from the environment.

Hunting deer is considered a resource extraction activity because this activity involves the loss of biodiversity.

Biodiversity is a fundamental issue for the health (homeostasis state) of the whole ecosystem.

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Answer:

Hunting dear, fewer trees to a decrease in earths carbon dioxide absorption, advancements in medicine, Hydrogen is a component of water , removing acid causing oxides from factory smoke  

Explanation:

Yw please mark brainliest<33

Which statement best describes the atoms in a gas?

Answers

Answer:

They move freely in all directions.

Explanation:

Calculate the volume of an
object with the following
dimensions:
5.0 cm x 16 cm x 12 cm

Answers

Answer:

960cm

Explanation:

5.0cm x 16cm =80cm

80cm x 12cm=960

Hope this helps : )

How does the crystallization of igneous material occur?.

Answers

The liquid igneous material cools, the ions within slow in their movement, and they pack more closely together. When sufficiently cooled, ions become confined to a crystalline arrangement.
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