Chem lab report is attached to the question plz help.

Answers

Answer 1

Answer: When I opened the doc it didn't work..

Explanation:


Related Questions

what is the amount of molecules in 5 moles of nitrogen gas, N2?​

Answers

The amount of molecules= 3.01 x 10²⁴

Further explanation

Given

5 moles of N2

Required

The number of molecules

Solution

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

N=n x No

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

For 5 moles :

= 5 x 6.02 x 10²³

= 3.01 x 10²⁴

How many moles of nitrogen (N2) are needed to produce 9.60x10^24 molecules
of nitrogen dioxide (NO2)? *

Answers

The number of moles of Nitrogen : == 7.975

Further explanation

Given

9.60x10²⁴ molecules  of nitrogen dioxide (NO2)

Required

The number of moles

Solution

Reaction

N2 + 2O2 → 2NO2

moles of NO2 :

= 9.6 x 10²⁴ : 6.02 x 10²³

= 15.95

From the equation, mol N2 :

= 1/2 x mol NO2

= 1/2 x 15.95

= 7.975

The number of molecules :

= 8 x 6.02 x 10²³

= 4.816 x 10²⁴

Give an example of gravitational potential

Answers

A raised weight.

Water that is behind a dam.

Have a nice day!

Answer:

When something has a high position, its gravitational potential energy is high. For example, a book on a high bookshelf has higher potential energy than a book on the bottom shelf because it has farther to fall. ... A book on a table before it falls. A child at the top of a slide.

Explanation:

U=m g h

Which is an acceleration?
A. Flying at 200 miles/hr
B. Speed changing from 2 km/hr to 5 km/hr
C. Moving north at 40 km/hr
D. Moving 8 meters in 2 seconds

Answers

(B) Because acceleration is change of speed over time.
B hope that can help you

How many moles of NaCl are in 2.35 liters of a 4.67 M solution?

Answers

There are 10.97 moles of NaCl in 2.35 liters of a 4.67 M solution.

HOW TO CALCULATE NUMBER OF MOLES:The number of moles of a substance can be calculated by multiplying the molarity by the volume. That is;

no. of moles = volume × molarity

According to this question, there are 2.35 liters of a 4.67 M solution. The number of moles is calculated as follows:

no of moles = 2.35L × 4.67M

no of moles = 10.97mol

Therefore, there are 10.97 moles of NaCl in 2.35 liters of a 4.67 M solution.

Learn more about no. of moles at: https://brainly.com/question/14919968

How far does a car travel in 0.75 hr if it is moving at a constant speed of 88km/hr?

Answers

Answer:

66 km.

Explanation:

88 km / 1 hour = 66 km / 0.75 hours.

You need to just multiply 0.75 by 88.

The answer is 66 km.

please help thank you

Answers

I believe the answer is a but if not I am so sorry

Something that is made out of natural resources for human use is called? Synthetic Resource Natural Resource Materials Living Organisims

Answers

Answer:

Natural Resource

Explanation:

A natrual resource is something that was created when Earth was first made. They were intended to fulfill human needs when they needed them. An example of a natural resource can be water, because we will need water to survive.

Can someone help? I don’t understand at all

Answers

Na = 2 atoms

Cl = 2atoms

F = 2 atoms

Further explanation

Given

Skeleton equation(unbalanced equation) :

NaCl+F2⇒NaF+Cl2

Required

The number of atoms

Solution

We balance the reactions to find the reaction coefficient, which is then used to calculate the number of atoms in the reactants and products

Balanced equation

2NaCl + F2 → 2NaF + Cl2

A balanced reaction will show that the number of atoms in the reactants and products is the same

Reactants :

Na = 2 atoms

Cl = 2atoms

F = 2 atoms

Products :

Na = 2 atoms

F = 2 atoms

Cl = 2 atoms

What do all of the inventors discussed in this lesson have in common?
1. All of the inventors can be characterized as problem-solvers.
2. All of the inventors used engineering principles to create new things.
3. All of the inventors created new things as children.
4. All of the inventors needed mathematics principles to formulate solutions.
PLEASE I NEED helppp

Answers

What’s the question? But I think it’s 4 that would make the most sense but I don’t know because I don’t know what the lesson was about.

can sum1 help me ????

Answers

Answer:

The principle of superposition states that the oldest sedimentary rock units are at the bottom, and the youngest are at the top. Based on this, layer C is oldest, followed by B and A. hope that helps

Explanation:

A=top

B=middle

C=bottom

Dana is playing with her friends. They ride their scooters 20 meters down the road North. They stop to grab a drink of water. Feeling tired, they turn around and ride their scooters 20 meters south
What is Dana and her friend’s displacement

Answers

Answer:

what is the displacement

Explanation:

PLS HELP ASAP! I WILL GIVE BRAINLIEST!! Which of the following explains the conservation of mass during cellular respiration? (4 points)
a The total number of atoms when carbon dioxide and oxygen react stays the same when glucose and water are produced.
b The total number of atoms when water and oxygen react stays the same when glucose and water are produced.
c The total number of atoms when carbon dioxide and water react stays the same when glucose and oxygen are produced.
d The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced.

Answers

Answer:

jayfeather friend me    ccccccc

Explanation:

is: cellular respiration creates an energy molecule when glucose is broken down.

Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are simply rearranged from the reactants to the products.

Why is biodiversity very important?

Answers

Answer: Biodiversity is important to humans for many reasons. ... Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many ecosystem services.

Explanation:

Hey! Biodiversity is important because bio means life of course and diversity is always important. Biodiversity is important because all animals in an ecosystem rely on each other, without diversity there would be no food web or chain. And it would be impossible for anything to live. Hope this helped

A 100 kg rock is broken into five smaller rocks for a garden. What is the total mass of all five smaller rocks?

Answers

Answer:

100 kg

Explanation:

you cannot destory mass so, it's going to be the same just broken up pieces

Cell organizations^ pls help

Answers

Cell > tissue > organ > organ system > whole organism

Answer:

Multicellular organisms have cells that are organized in specific ways to perform specialized functions. From the most complex level to the simplest level, the five levels of organization for the sheep should be ordered as:

whole organism → organ system → organ → tissue→ cell

Explanation:

The objects potential energy at point Y is less its potential energy at which of the following points

Answers

Answer:

C

Explanation:

increase potential energy ( in motion)

How many orbitals exist for s shape

Answers

The s sublevel has only one orbital

Which of these is not a response to internal stimuli?

A. wearing sunglasses to to protect eyes from UV rays

B. breathing hard when exercising because of a drop in oxygen levels

C. eating when hungry

D. drinking when thirsty

Answers

Answer:

A. wearing sunglasses to to protect eyes from UV rays

Explanation:

Your eyes are outside of your body, meaning external. All the other choices deal with internal organs.

which one is you fav one

Answers

Answer:

the 3rd one

Explanation:

The purple and yellow one is my fav!

Which of these is NOT a science and engineering practice?

asking questions


opinion and factless ideas


analyzing and interpreting data


obtaining, evaluating, and communicating information

Answers

Opinion and  and factless ideas  are not science and engineering practice as these are based on observations.

What are observations?

Observations are defined as a set of statements or facts which are recorded while conducting an experiment.Observations are made through sensing changes in the variables of the experiment.

It is specifically defined as an act of knowing or recording the changes in the variables of the experiment.Recording observations holds importance as recording observations avoid the experiment to be repeated over and over again.

It is important to note down observations so that the testing of hypothesis is made easier.There are four types of observations .Observations need to be descriptive and must be written in complete sentences and should include all the numerical data of the experiment.

Learn more about observations,here:

https://brainly.com/question/24547719

#SPJ6

why do plants provide animals with fruit such as strawberries, apples, and mangoes

Answers

Answer:

to increase their number of species on the Earth and want to go long and long

If two people have sex in certain positions then pregnancy is not possible because of gravity

Answers

Answer:

true <3

Explanation:

Explain how Newton’s cradle demonstrates the law of conservation of energy.

Answers

When power goes up it must come down.

whoever answers first will get brainliest! this is times so pls help!

You are titrating a 125 mL sample of KOH solution; the pH meter reads 7.00 after the addition of 84.7 mL of 0.750 M HNO3.

What is the concentration of the KOH solution?

A. 0.125 M KOH
B.0.750 M KOH
C.0.508 M KOH
D. 0.0635 M KOH

thanks so much!

Answers

I’m pretty sure it would be D

How many moles are in 6.777 x 1023 atoms of CO2. Watch your significant figures. Question 2 options: 1 atoms CO2 1.125 moles CO2 1.13 moles 1.13 atoms CO2

Answers

Answer:

1.13moles

Explanation:

Given parameters:

Number of atoms  = 6.777 x 10²³ atoms

Unknown:

Number of moles  = ?

Solution:

A mole of a substance contains the avogadro's number of particles

       6.02  x  10²³ particles   = 1 mole

      6.777 x 10²³ atoms will contain [tex]\frac{ 6.777 x 10^{23} }{6.02 x 10^{23} }[/tex]   = 1.13moles

Prokaryotes store their DNA in a nucleus.
True
or false

Answers

False, because prokaryotes do not have a nucleus.
false is the answer!!

how many moles are in 1.2 x 10^26 molecules of calcium hydroxide

Answers

Answer:

199.26 or with sig figs 2.0 x 10^2

Explanation: you take the # of molecules and divide it by avagadros number which is 6.022141 x 10^23

What are some of the properties of snow

Answers

Explanation:

density, albedo, light e-folding depth, specific surface area (SSA), crystal size and shape, thermal conductivity, permeability, diffusivity,

1. What is the mass of zinc in your penny?

Answers

Answer:

97.5%

Explanation:

the US mint specifies pennies as 2.5% copper in 97.5% zinc

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