What type of energy is being used by the roller coaster at each point? 8 9) 10) 11) 8) 9) 10) 11) A) Potential Energy A) Gaining Potential Energy A) Potential Energy A) Gaining Potential Energy B) Kinetic Energy B) Gaining Kinetic Energy B) Kinetic Energy B) Gaining Kinetic Energy​

What Type Of Energy Is Being Used By The Roller Coaster At Each Point? 8 9) 10) 11) 8) 9) 10) 11) A)

Answers

Answer 1

Answer:

Answers are below !

Explanation:

8) A) Potential Energy

9) B) Gaining Kinetic Energy

10) B) Kinetic Energy

11) A) Gaining Potential Energy


Related Questions

At 20°C, the volume of chlorine gas is
15dm3. Compute the resulting volume
if the temperature is adjusted to 318K
provided that the pressure remains
the same.

Given:
Unknown:
Formula:
Solution:
Final Answer:​

Answers

Solving typed question by you

20°C=293K

Apply charles law

V1T2=V2T115(318)=293V2V2=16.27dm³

Answer:

See below ~

Explanation:

Typed question

Given :

T₁ = 20 °C = 293 KV₁ = 15 dm³T₂ = 318 K

Unknown :

V₂

Formula :

V₁/T₁ = V₂/T₂

Solution :

15/293 = V₂/318V₂ = 318/293 x 15V₂ = 1.09 x 15V₂ = 16.35 dm³

Final Answer :

16.35 dm³

Question 3 (in attachment)

Given :

V₁ = 600 mLP₁ = 700 torrV₂ = 600(1 - 1/3) = 600(2/3) = 400 mL

Unknown :

P₂

Formula :

P₁V₁ = P₂V₂

Solution :

700 x 600 = P₂ x 400P₂ = 600/400 x 700P₂ = 1.5 x 700P₂ = 1050 torr

Final Answer :

1050 torr

water comes from different a.levels b.phases c.sources d.stages​

Answers

Answer:

C. sources

Explanation:

What changes in color occur when bromine reacts with an alkene?

Answers

The dark red color of bromine disappears quickly and the mixture turns clear/colorless

Calculating the Equilibrium Solubility Constant
A specific metal ion, M²+, forms a relatively insoluble sulfide compound, MS, which dissolves to a very limited extent.
MS(s) = M²+ (aq) + S²-(aq)
The concentration of ions in a saturated solution was found:
[M²+ (aq)] = [S2-(aq)] = 0.000143 mol L-¹.
Calculate Ksp for the compound MS.
Give three significant figures.
Enter your answer in exponential form, for example, enter 0.000000672 as 6.72e-7 with no gaps and the -ve e if power
is -ve.

Answers

The solubility product of the substance MS in water is 2.0 * 10^-8.

What is solubility product?

The solubility product is an equilibrium constant that shows the extent to which a solid is dissolved in water.

In this case, the equilibrium is; MS(s) = M²+ (aq) + S²-(aq) but M²+ (aq)] = S^2-(aq)] = 0.000143 mol L-¹.

Thus

Ksp = [0.000143 ]^2 = 2.0 * 10^-8

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Milk in a bottle has a mass of 442grams and a volume of 425cubic centimeters. Calculate its density. Write your answer to the hundredths place. gramspercubic centimeter

Answers

Answer:1.04 grams per cubic centimeter

Explanation:

What completely ionizes in solution

Answers

Answer:

Strong acids. hope this helps :)

The drawing shows a chemical reaction between hydroxide and bromomethane to produce methanol and bromide ion. The middle drawing is the activated complex. The reaction is exothermic.

Which species has the lowest energy?


A


B


C














Item 4















Item 4

Answers

Answer:

C.

Explanation:

Exothermic means the energy of products is lower than energy of reactants. Transition state will always be the highest energy among the two.

What atoms have the most positive overall charge to least positive
overall charge.
Atom B: 24 protons, 18 electrons
Atom P: 7 protons, 10 electrons
Atom X: 104 protons, 102 electrons
Atom Q: 15 protons, 16 electrons

Answers

Atom B(+6), Atom X(+2), Atom Q(+1), Atom P (-17)

C + 2H2 -> CH4
For the reaction shown here, predict the number of moles of hydrogen gas needed produce 32 grams of methane.
A) 1
B) 2
C) 4
D) 8​

Answers

Answer:

C) 4

Explanation:

The reaction :

C (s) + 2H₂ (g) ⇒ CH₄ (g)

       12g      4g             16g

Hence, based on this we can say that : 2 moles of hydrogen gas are needed to produce 16g of methane.

For 32g of methane

Number of moles of H₂ = 32/16 × 2Number of moles of H₂ = 4

According to the stoichiometry, 8 moles of hydrogen gas are needd to produce 32 g  of methane.

What is stoichiometry?

Stoichiometry  is the determination of proportions of elements or compounds in a chemical reaction. The related relations are based on law of conservation of mass and law of combining weights and volumes.

Stoichiometry is used in quantitative analysis for measuring concentrations of substances present in the sample. It is a quantitative study of reactants and products. Stoichiometric conversions make use of mass and moles.In the given example and according to the chemical reaction given,as 4 moles of hydrogen produce 16 g methane,∴for 32 g methane, 32×4/16=8 moles.

Thus , 8 moles of hydrogen gas are required to produce 32 g of

methane.

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Help! 100 point and I will give a brainliest and 5 star for solving this question.

100ml of 0.1 N H2SO4 by diluting from original H2SO4.
Atomic mass of: O=16 , H=1 S=32
d H2SO4=1.08 purity%=98%
i need the solution.

Answers

Mass of H_2SO_4 required

Molarity

Moles of solute/Volume of solution in L

So

0.1=n/0.1Ln=0.1(0.1)n=0.01mol

Now molar mass of H_2SO_4

2(1)+32+4(16)2+32+6498g/mol

Mass

98(0.01)0.98g

Besides drinking water, how is water helpful for life and nature?

Answers

Answer:

The composition of a water molecule is one of the first chemical compounds we learn—H2O—two hydrogen atoms and one oxygen atom. The atoms connect in a slightly offset or triangular structure, which creates a positive charge on one side of the molecule and a negative charge on the other.

Explanation:

Water is essential to life—we learn this early in our elementary school years. This information is often accompanied by the fact that over 50% of our bodies are made up of water. However, the lesson does not always go on to explain what it is about water that makes it so essential.  

(Hope this was helpful!)

Which of the following environments are low-level areas that can be temporarily or seasonally filled with water?

Rainforest
Swamp
Tundra
Wetland

Answers

D- wetland. is the correct answer

Answer:

is D :)

Explanation:

How much heat does it take to warm 16.0 g of pure water from 90.0 degree C to 100.0 degree C?
The specific heat of water = 4.18 J/g. degree C

16.0 Joules
160 Joules
66.9 Joules
669 Joule

Answers

[tex]{\huge{\fcolorbox{yellow}{red}{\orange{\boxed{\boxed{\boxed{\boxed{\underbrace{\overbrace{\mathfrak{\pink{\fcolorbox{green}{blue}{Answer}}}}}}}}}}}}}[/tex]

669 J

Right option is D.

Step by Step Explanation:

[tex] \sf Mass \: of \: water(m) = 16g \\ \\ \sf Specific \: heat \: of water(C) = 4.18J/g \\ \\ \sf Change \: in \: temperature ( \triangle T) = 100 - 90 = 10{ \degree}C[/tex]

[tex] \sf \large \red{ Heat = mC\triangle T}[/tex]

Now substituting the required values.

[tex] \sf \hookrightarrow Heat = 16 \times 4.18 \times 10 \\ \\ \sf \hookrightarrow Heat = 668.8(approx) \\ \\ \blue {\boxed { \hookrightarrow{Heat = 669J }}}[/tex]

Which do you predict to have the greater electron affinity, Na or Na+ ? And why?

Answers

Na is the most stable state of the atom. Therefore Na+ will have a greater electron affinity because it wants to bring its charge back to the neutral Na. Na^+ + e- = Na

At 27.0 °C a gas has a pressure of 6.00 atm. What will the pressure be at 150.0 °C? 

Answers

the pressure of the gas at 150°C will be 8.46L

When writing a net ionic equation the sum of the charges for reactants is greater than the sum of charges for products

Please select the best answer from the choices provided

OT
OF

Answers

Answer:

Explanation:

Net ionic equations must be balanced by both mass and charge. Balancing by mass means ensuring that there are equal masses of each element on the product and reactant sides. Balancing by charge means making sure that the overall charge is the same on both sides of the equation.

What environment will produce the largest crystal sizes?

Construct a short Essay (Make sure you include information about Temp, Pressure, amount of dissolved solids, & cooling time)

Is there support for your Claim?

Answers

The pressure should be low as low pressure can melt the crystals easier wayAccording to Gay lussac's law pressure is directly proportional to temperature so temperature should be also low as it's general any thing need to be cooled down inorder to get crystallisedNow for amount of dissolved solids the solution should be super saturated like magma .It denotes that the particles present as solute must be greater than the solubility.Cooling time also should be long inorder to give time to crystallization

How do hydrogen ions exist in a solution?

Answers

A H+ ion in a solution due to an acid. The higher the conc. of H+ ions the more acidic. A hydrogen ion cannot exist in solution by itself so in an aqueous solution when an acid is dissociated into h+ ions, the ions bond with the h2o to form hydronium ions, h3o

The concentration of an unknown protein sample was determined as 8.3 mg/ml. Calculate the concentration of the unknown protein in mM (millimolar) if: Average molecular mass of an amino acid = 118 g/mol The protein is 64 amino acids in length.

Answers

Based on the molar mass of the protein, the concentration of the unknown protein is 0.0011 mM (millimolar).

What is concentration?

Concentration is the amount of a solute present in a given volume of substance.

Concentration = moles/volume

Moles of protein = mass/molar mass

molar mass of protein = 118 × 64 = 7552 g/mol

Moles of protein in 8.3 g = 8.3/7552 = 0.0011 moles

Concentration = 0.0011 mole/mL = 0.0011 mM.

Therefore, the concentration of the unknown protein is 0.0011 mM (millimolar).

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Drink mix compound what is the formula for drink mix compound

Answers

Answer:

Is drinks a compound or mixture?

Drinks are usually solutions of various substances dissolved in the water. Since the amount of each of these can vary (sugar, flavoring, color, carbonation), it’s a mixture. The components can be separated by various physical methods such as evaporation. Is smoke a compound or a mixture? Smoke is a mixture.

Question 29 of 30
The thermochemical equation for the reaction of pentane and oxygen is
shown below. What does the equation tell you about the reaction?
C,H,(g)+80,(g) → 500,(g) + 6H2O(g) + 3536 kJ
O A. It is endothermic.
B. It has a low activation energy.
C. It has a high activation energy.
D. It is exothermic.

Answers

the answer is C
explanation

How many molecules of hydrogen fluoride (HF) are in (8.5x10^-2) moles of hydrogen fluoride (HF)?

Answers

Molecules and the moles can be interconverted into each other with the help of the Avogadro's number. In 8.5 x 10⁻² moles of hydrogen fluoride, there are 51.17 × 10²¹ molecules.

What is Avogadro's number?

Avogadro's number is the special number that converts the moles into molecules and vice versa. The value of the Avogadro's number is 6.02 x 10²³.

If 1 mole of HF has 6.02 x 10²³ molecules then,

8.5 x 10⁻² moles of HF will have:

(8.5 x 10⁻²) × 6.02 x 10²³) = 51.17 × 10²¹

Therefore, 51.17 × 10²¹ molecules are present in HF.

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Please help!!! Only one try. Explain why the answer is the right answer
Which equation is an example of artificial transmutation

Answers

Answer:Nitrogen can be transformed into oxygen by bombarding an alpha particle into the nucleus of nitrogen. An atom of hydrogen is produced as part of the transformation. Aluminum is transformed into phosphorous by combining the nucleus with an alpha particle

Explanation:

Which of the following represents the quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius?

A) Heat of reaction
B) Boiling point
C) Specific heat capacity
D) Thermochemical value

Answers

Answer:

C

Explanation:

The units of specific heat are usually calories or joules per gram per Celsius degree. For example, the specific heat of water is 1 calorie (or 4.186 joules) per gram per Celsius degree. The Scottish scientist Joseph Black, in the 18th century, noticed that equal masses of different substances needed different amounts of heat to raise them through the same temperature interval, and, from this observation, he founded the concept of specific heat. In the early 19th century the French physicists Pierre-Louis Dulong and Alexis-Thérèse Petit demonstrated that measurements of specific heats of substances allow calculation of their atomic weights (see Dulong-Petit law). See also heat capacity.

The statement that represents the quantity of heat required to raise the temperature of one gram of a substance by one degree Celsius is Specific heat capacity. The correct option is C.

What is Specific heat capacity?

When the temperature of a material rises 1 K (or 1 °C), the amount of heat (J) is absorbed per unit mass (kg). It is crucial since it will show how much energy will be needed to warm or cool an object of a certain mass by a certain amount.

The formula of specific heat capacity is [tex]Q=mc\Delta T[/tex]  Where q is the specific heat, m is the mass and t is the change in temperature.

According to the definition, a material's specific heat capacity is normally calculated by calculating the heat capacity of an illustration of the substance, commonly using a calorimeter, and dividing by the sample's mass.

Thus, the correct option is C. Specific heat capacity.

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If 22.5L of nitrogen at 0.98 atm is compressed to 0.95 atm,what is the new volume?

Answers

At constant temperature, if the pressure is compressed to the given value, the volume of the nitrogen gas increases to 23.2L.

What is Boyle's law?

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given that;

Initial volume of the gas V₁ = 22.5LInitial pressure of the gas P₁ = 0.98atmFinal pressure of the gas P₂ = 0.95atmFinal volume of the gas V₂ = ?

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

V₂ = (0.98atm × 22.5L) / 0.95atm

V₂ = 22.05Latm / 0.95atm

V₂ = 23.2L

Therefore, at constant temperature, if the pressure is compressed to the given value, the volume of the nitrogen gas increases to 23.2L.

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most of the volume of an atom is occupied by ?

Answers

G. Empty space

Hope this helps!

What is the name of the functional group that is attached to this hydrocarbon?
H
H
• alkyl halide
alcohol
carbonyl
ketone

Answers

Two molecules having different sizes but the same functional groups will take part in chemical reactions. Functional groups are used in the field of organic chemistry. Here the given molecule has ketone functional group. The correct option is D.

What are functional groups?

The substituent atoms or groups of atoms which are attached to specific molecules are defined as the functional groups. These moieties are responsible for the chemical reactions. The same functional group will experience comparable reactions regardless of the chemical in which it is present.

A ketone is a functional group which consists of a carbonyl carbon bound to an oxygen atom by a double bond and two alkyl or aryl groups. Ketones are usually represented as RCOR, where two R's can be any alkyl or aryl group. Their general formula is CₙH₂ₙO.

Lower ketones are soluble in water because they consist of the polar carbonyl group.

Thus the correct option is D.

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Part B
What do radio waves carry?

Answers

Answer:

information from station to receiver

What is the molecular mass

Answers

100.08 is the molecular mass.

Which explanation describes the last part of a chemical reaction?

Reactants collide to form a transition state.


Transition state falls apart to form products.


Products collide to form reactants.


Reactants collide to form products.

I am not sure between Reactants collide to form a transition state and Transition state falls apart to form products. please put an explanation.

Answers

Answer:

Transition state falls apart to form products.

Explanation:

Reactants collide to form a transition state is actually the initial step (not the last step) because reactants have react with each other. Transition state is the middle stage, once this stage falls or passes, you get products. I have attached an example reaction scheme to better understand.

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