Hikers have noticed that a sealed bag of potato chips puffs up when taken to the top of a mountain. Suppose that at the valley floor below, the air pressure is 1.0 atm, temperature is 25°C, and the volume of the chip bag is 0.985 L. At the top of the mountain, the temperature is 22°C and the chip bag has puffed up to 1.030 L.

What is the air pressure on top of the mountain?
__ atm

Answers

Answer 1

Answer:

0.95

Explanation:

trust


Related Questions

If an atom has 8 electrons and 8 protons and 9 neutrons then what is it's net charge?"
choices:
0
1+
1-
2-

Answers

The answer is 0. Protons have a +1 charge and electrons have a -1 charge. Neutrons are neutral.

Given a solution with a hydrogen ion concentration of 9.9 x10-13 M, calculate the
pОН. .

Answers

Answer: The pOH value is 2.

Explanation:

Given: [tex][H^{+}] = 9.9 \times 10^{-13} M[/tex]

pH is defined as the negative logarithm of hydrogen ion concentration.

Hence, pH of the given solution is calculated as follows.

[tex]pH = -log [H^{+}]\\= - log (9.9 \times 10^{-13})\\= 12[/tex]

The relation between pH and pOH is as follows.

pH + pOH = 14

Therefore, pOH is calculated as follows.

pH + pOH = 14

12 + pOH = 14

pOH = 14 - 12

= 2

Thus, we can conclude that the pOH value is 2.

Which part of the scientific process is a proposed answer to a question?

1. observation
2. experiment
3. hypothesis
4. results

Answers

Scientific processes are the steps that are done to research and draw conclusions. The results of the experiments are the proposed answer to a question. Thus, option 4 is correct.

What are the steps of the scientific process?

The scientific process initiates when there is a question that needs to answer and presented with observations and facts. It includes defining the question and making observations.

From the observations, the hypothesis is formed and an experiment is designed and conducted. From the research, the conclusion and the results are drawn.

Therefore, option 4. the proposed answer is called the result.

Learn more about the scientific process here:

https://brainly.com/question/22911053

#SPJ2

Answer:

Hypothesis

Explanation:

Hypothesis is an educated guess as to what the answer to the question is.

(*) Sorry for my late answer but I hope this helps others that are looking for this.

I got 100%   ;)

Hydrogen gas can be produced in the laboratory by the reaction of magnesium metal with hydrochloric acid, according to the following equation:
Mg(s) + 2HCl(aq) --> MgCl2(aq) + H2(g)

a. How many grams of hydrogen can be produced when 4.00 g of HCl is added to 3.00 g of Mg?

b. Assuming STP, what is the volume of this hydrogen?

Answers

Answer: 0.11 g H2

Explanation: just took test and got it right

Describe how nucleic acid basis pair up

Answers

The rules of base pairing (or nucleotide pairing) are: A with T: the purine adenine (A) always pairs with the pyrimidine thymine (T) C with G: the pyrimidine cytosine (C) always pairs with the purine guanine (G)

The nucleotides in a base pair are complementary which means their shape allows them to bond together with hydrogen bonds. The A-T pair forms two hydrogen bonds. The C-G pair forms three. The hydrogen bonding between complementary bases holds the two strands of DNA together.

Each element emits its own unique wavelength of light which can be used to determine the identity of that element. The packet or light wave emitted is called a

Answers

Answer:

Photon

Explanation:

The simplest description of a photon is to consider it as a bundle of electromagnetic energy.

In the context of wave - particle duality, light is considered sometimes as a particle. Each bundle of the particles of light wave is called a photon of light.

The wavelength of a photon of light emitted by an element can be used as a tool to identify that particular element.

1. What is the new volume of a sample of neon if 5.23 L of the gas, which was originally at 214 mmHg, is compressed until the pressure increases to 796 mmHg?
2. When a balloon containing 635 mL of air is taken from sea level (at standard pressure) to a higher altitude, the balloon expands to 829 mL. What is the air pressure at this new altitude (in atm)?
3. A 465 mL sample of gas at 55°C is cooled to standard temperature (0°C). What is its new volume?
4. To what Celsius temperature does 750. mL of gas originally at −12°C need to be heated to bring the volume to 2.10 L?
5. The pressure in a car tire is 217 kPa at 24°C. After being driven on a hot summer day, the pressure in the tire increases to 258 kPa. What is the Celsius temperature of the air in the tire?
6. A gas sample originally at −39°C is heated to standard temperature (0°C), at which point its pressure is measured to be 808 mmHg. What was the original pressure of the gas?
7. A 400. mL sample of gas at 15°C and 113 kPa is heated to 227°C while expanding into a 900. mL container. What is the new pressure of the gas in kPa?
8. 2.50 g of CO2 gas is confined in a rigid cylinder at a pressure of 4.65 atm. If 0.42 g of gas is released from the cylinder, what is the new pressure?
Please help I'm so bad at chemistry

Answers

Here are attached photos, I don’t think they ar links, lmk if they don’t work

in the answering section it didn’t show me the full question so I only saw a little of question 5. Hopefully you get the idea of how to identify which equations to use tho! Good luck!

Please help this is due today! 5-11-2021

Observe the chemical reaction below, and identify if the equation is balanced or not. If it is not balanced, then what coefficient should you place for the reactants and products? Justify with scientific reasoning.

Mg + O2---------> MgO

Make sure to include the following details in your answer in complete sentences:

- Is the chemical reaction balanced?

- Is it following the law of conservation of mass, why is not following?

- What can you do to make sure that the equation becomes balanced and follow the law?

Answers

Answer:

- The chemical reaction is not balanced. There is two oxygens on the reactant's side while there's only one oxygen on the products side.

- I would not say it's following the law of conservation of mass as it's not a balanced equation.

- To balance this equation, you would need to add the coefficient of '2' to Magnesium (Mg) on the reactants side, and add the coefficient of '2' to the products side.  This would make it so that there's 2 Mg's and 2 O's on both the reactant's side and products side.

edit: I hope this helped you in some way. ^^

In your own words, describe how the moon’s gravity affects the tides.

Answers

Answer:

It makes them splash more.

Explanation:

Answer:

Tidal force

Explanation:

The moon's gravitational pull generates the tidal force. The tidal force causes Earth, more specifically Earth's water to bulge out on the side closest and farthest from the moon. These are high tides.

hope this helps:)

Select all of the HOMOGENEOUS mixtures from this list (click all that apply).

A. Paint
B. Chili
C. Blood
D. Soil
E. Salt water

Answers

Answer:

E is answer

Explanation:

salt water is the answer

Answer:

E.Salt water

Explanation:

Salt water  is  a homogeneous because the dissolved salt is evenly distributed throughout the entire salt water sample. The amount of salt in the salt water can vary from one sample to another.

A2 Could you remove the iron from the iron sulfide using
magnet?
Explain your answer.

Answers

the iron and sulfur still behave like iron and sulfur in the mixture, but iron sulfide has different properties from both iron and sulfur.

you can separate the iron from the mixture using a magnet, but this does not work for iron sulfide

What is the specific heat of a substance if 690 J of heat are required to raise the temperature of a 100 g
sample by 15°C? You must show your work

Answers

Answer:

hi

Explanation:

A 6.23 g nugget of pure gold absorbed 282 J of heat. The initial temperature was 30.4 degrees Celsius. What was the correct final temperature of the gold nugget if the specific heat of gold is 0.129 J/gC

Answers

Answer:

Final temperature, T2 = 381.28°C

Explanation:

Given the following data;

Mass = 6.23 g

Initial temperature = 30.4°C

Heat capacity = 282 J

Specific heat capacity = 0.129 J/g°C

To find the final temperature;

Heat capacity is given by the formula;

[tex] Q = mcdt[/tex]

Where;

Q represents the heat capacity or quantity of heat.

m represents the mass of an object.

c represents the specific heat capacity of water.

dt represents the change in temperature.

Making dt the subject of formula, we have;

[tex] dt = \frac {Q}{mc} [/tex]

Substituting into the equation, we have;

[tex] dt = \frac {282}{6.23*0.129} [/tex]

[tex] dt = \frac {282}{0.8037} [/tex]

dt = 350.88°C

Now, the final temperature T2 is;

But, dt = T2 - T1

T2 = dt + T1

T2 = 350.88 + 30.4

Final temperature, T2 = 381.28°C


4. Based on their placement on the periodic table, which of the following is more
reactive?
A.Sodium (Na)
B. Magnesium (Mg)
C. Barium (Ba)
D. Neon (Ne)

Answers

Ur answer is A! Sodium

Propane is an alkene. Describe the test for alkenes. Give the colour change in the test.

Answers

Answer:

Explanation:

One test for Alkenes is testing with bromine water. This test can be used to tell the difference between an Alkanes and Alkenes. On a normal, any Alkene will turn brown bromine water to colourless because the bromine reacts with the double carbon-carbon bond. Also, the reaction takes place with unsaturated compounds that contains the double carbon-carbon bonds.

Conversely, when Alkanes go through the same test, there is no reaction with bromine water.

TEACH ME how to do question 2 through your explanations.

Answers

Answer:

Explanation:

The first two are easy:

H2O, H3O+ and OH- all exist in an equilibrium

[H3O+] = [OH-] = 10^-7 M

HCl is a strong acid so 1M of it will disassociate completely

[H3O+] = [Cl-] = 1 M

The third one is also an equilibrium as HNO2 is a weak acid. Ka is given so [HNO2] and [NO2-] can be calculated.

The fourth one is a buffer solution so its pH can be looked up to give the concentrations.

Answer:

Explanation:

H20 has pH of 7

1st reaction [H30+] = 10^-7M

[OH-] = 10^-7M

1M HCl has pH of 0

2nd reaction [H3O+] = 1M

[Cl-] = 1M

given Ka = 4.6x10^-3 = [H3O+]x[NO2-] / [HNO2]

and [HNO2] + [NO2-] = 1M

each concentration can be solved

beaker D is a buffer solution n requires more info 2 solve

(reporting links) brainly
Amebic dysentery is a disease caused by organisms that live in dirty water. Which is most likely to prevent an epidemic of amebic dysentery?


A. vaccination of the population

B. purification of drinking water

C.public education on the importance of washing hands

D.restriction on travel to places with amebic dysentery

Answers

Answer:

The answer would have to be public education on the importance of washing hands.

Explanation: Washing hands is always one of the best ways to prevent a contagious disease.

During which phase of the moon does a lunar eclipse occur?
A
first quarter

B
full

C
last quarter

D
new

Answers

full moon
A lunar eclipse can occur only at full moon. A total lunar eclipse can happen only when the sun, Earth and moon are perfectly lined up — anything less than perfection creates a partial lunar eclipse or no eclipse at all.

Find the molality of a solution of 58.5 g NaCl dissolved in 0.556 kg of water

Answers

Answer:lmk

Explanation:

3 complete paragraphs on Static Electricity

Answers

Answer: Employments of friction based electricity incorporate contamination control, Xerox machines, and painting. They utilize the property that inverse electrical charges pull in. There are different utilizations including the properties of aversion and the making of electricity produced via friction flashes

friction based electricity is an awkwardness of electric charges inside or on the outside of a material. The charge stays until it can move away through an electric flow or electrical release.

In view of similar kinds of examinations like the one you performed, researchers had the option to set up three laws of electrical charges: Inverse charges pull in one another. Like charges repulse one another. Charged items pull in nonpartisan articles.

Iodine-131 half life 8.040 how long will it take for a 40 gram sample of iodine-131 to decay to 0.75 grams

Answers

Answer:

See explanation below

Explanation:

To get this, we need to apply the general expression for half life decay:

N = N₀e(-λt)    (1)

Where:

N and N₀ would be the final and innitial quantities, in this case, masses.

t: time required to decay

λ: factor related to half life

From the above expression we need λ and t. To get λ we use the following expression:

λ = t₁₂/ln2   (2)

And we have the value of half life, so, replacing we have:

λ = 8.04 / ln2 = 11.6

Now, we can replace in (1) and then, solve for t:

0.75 = 40 exp(-11.6t)

0.75 / 40 = exp(-11.6t)

ln(0.01875) = -11.6t

-3.9766 = -11.6t

t = -3.9766 / -11.6

t = 0.34 days

True or False: When it is spring in the Northern Hemisphere, it is autumn in the Southern Hemisphere.

Answers

Answer:

That is true

Explanation:

What product is formed when sodium and chlorine undergo a synthesis reaction? sodium chlorite
sodium chlorate
sodium and chloride
sodium chloride

Answers

Sodium chloride is the answer
Sodium chloride is formed

How do ecosystems change overtime

Answers

Answer:

Ecosystems, the interactive system of living and nonliving organisms in a specific location, change slowly over time. When new plants and animals arrive in an area, they either thrive or struggle. Thriving species sometimes displace native species. When this happens, the system as a whole begins to change.

A student dissolves 10 grams of sugar in enough water to make 25 ml of solution. What is the concentration of the solution

Answers

Answer: The concentration of given solution is 11.68 M.

Explanation:

Given: Mass of solute = 10 g

Volume of solution = 25 mL

Convert mL into L as follows.

[tex]1 mL = 0.001 L\\25 mL = 25 mL \times \frac{0.001}{1 mL}\\= 0.025 L[/tex]

Number of moles is the mass of substance divided by its molar mass. The moles of sugar (molar mass = 342.3 g/mol) is as follows.

[tex]No. of moles = \frac{mass}{molar mass}\\= \frac{10 g}{342.3 g/mol}\\= 0.0292 mol[/tex]

Molarity is the number of moles of solute present in a liter of solution.

Hence, concentration of given solution is calculated as follows.

[tex]Molarity = \frac{no. of moles}{Volume (in L)}\\= \frac{0.0292 mol}{0.025 L}\\= 11.68 M[/tex]

Thus, we can conclude that the concentration of given solution is 11.68 M.

What is a synthesis reaction? a reaction that occurs when two or more reactants combine into one product
a reaction that occurs when one element within a compound is exchanged with another element
a reaction that occurs when a substance combines with molecular oxygen, releasing light and energy
a reaction that occurs when a single substance breaks apart and forms two or more new substances

Answers

Answer:

A synthesis reaction is a reaction that occurs when two or more reactants combine into one product.

Explanation:

A reaction that occurs when two or more reactants combine into one product is called a synthesis reaction.

A reaction that occurs when one element within a compound is exchanged with another element is called a single replacement reaction.

A reaction that occurs when a substance combines with molecular oxygen, releasing light and energy is called combustion.

A reaction that occurs when a single substance breaks apart and forms two or more new substances is called decomposition.

Kinetic energy is a measure of a particles what?

A: Size
B: Motion
C:Color
D:Weight

Answers

B is the answer because it is

Rahul sits in a chair reading a book. Which force is equal to the force Rahul exerts on Earth?

Rahul’s weight
Rahul's mass
the sum of the weights of Rahul and the book
the sum of the weights of the chair, Rahul, and the book

Answers

Answer:

rahul's weight

Explanation:

internet

The force is equal to the force Rahul exerts on Earth is Rahul's weight.

What is Force?

Force is that thing which cause a change in the motion of an object

What is force Rahul?Since Rahul sits on the chair, his weight exerts a downwards force towards the Earth which is the attraction of the Earth on Rahul. Now, Rahul also exerts a force of attraction on the Earth which is also equal to his weight, since according to Newton's third law which states that for every action, there is an equal and opposite reaction.

So, Rahul exerts a force on the Earth equal to his weight.

Thus, the force is equal to the force Rahul exerts on Earth is Rahul's weight.

Learn more about force here:

https://brainly.com/question/25239010

Balance the Chemical Equation. Fill in the Missing Coefficients. GeF3 + Cs = CsF + Ge

Answers

1GeF3 + 3Cs = 3Csf +1Ge
DONT HATE ME IF ITS WRONG PLS
Itsttsdtyfydydydyddytdtddttddggdgdgd

Which reaction type? *

combination (synthesis)
combustion
decomposition
single replacement
double replacement

Answers

Single replacement.

Mg replaces the H in HCl to become MgCl2.
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