Chemistry College

A barometer is used to measure air pressure.
Please select the best answer from the choices provided
Т
F

Answers

Answer 1
True is the correct answer.

Related Questions

* Urgent Bet no one knows this *

Answers

Answer: The name of the super continent that existed millions of years ago.

Explanation:

Our continents as they exist today were once joined together into a super continent known as Pangea. Over the millennia, the land masses broke off and drifted away creating the location of the continents we know today.

(つ ^‿^ )つ Hey there!

Answer → Is the second answer, The name of the super continent that existed millions of years ago.  

✨Hope this helps!✨

Which gas will have the least collisions between its particles?

A. Helium at 20 C
B. Oxygen at -45 C
C. Carbon dioxide at 80 C
D. Argon at 265 K

Answers

AWNSER: A.


WHY: oxygen we breathe so there’s nothing too bad about oxygen carbon dioxide yes it’s kind of thick air though it won’t work so helium is the only good answer here

The gas that has the least collisions between its particle is helium at 20° C. The correct option is A.

What is collision?

Collision is a term used when two particles or object collides or clash and there is an exchange or transformation of energy between them. When a collision happens, the force is exerted on each other.

Helium is the second most abundant element present in the atmosphere. It is the lightest gas and its particle collides when there is an increase in the temperature.

Thus, the correct option is A. Helium at 20° C., regarding the collision of particles between its particles.

Learn more about the collision, here:

https://brainly.com/question/27453270

#SPJ5

What is the composition of a universal indicator?

Answers

Answer:

The main universal indicator is in the form of a solution and are thymol blue , methyl red , bromothymol blue and phenolphthalein this mixture is important because each component loses or gains protons depending upon the acidity of the solution being tested .

maybe this mighr help u

A hot piece of copper was dropped into 155 g of water at 23.6 °C and 2,100 J of energy was transferred to the water. What is the final temperature of the water?​

Answers

Answer:

26.8 °C

Explanation:

Step 1: Given and required data

Mass of water (m): 155 gEnergy transferred to the water (Q): 2100 JInitial temperature of the water (T₂): 23.6 °CFinal temperature of the water (T₁): ? Specific heat of water (c): 4.184 J/g.°C

Step 2: Calculate the final temperature of the water

We will use the following expression.

Q = c × m × (T₂ - T₁)

T₂ = 2100 J/(4.184 J/g.°C) × 155 g + 23.6 °C = 26.8 °C

The answer is When The final temperature we (reached by both copper and also water) is 38.7 °C.  This method can also be used to determine other quantities, also it helps a lot such as the specific heat of an unknown metal. Step 1: when Given and required data is:When The Mass of water (m): 155 gWhen the Energy transferred to the water is (Q): 2100 JAfter that initial temperature of the water is (T₂): 23.6 °CNow when the Final temperature of the water is (T₁):?when The Specific heat of water (c): 4.184 J/g. °CStep 2: Now Calculate the final temperature of the water is:Now We will use the following expression is:Then follow this formula Q = c × m × (T₂ - T₁)

Learn more about:

https://brainly.com/question/14197263

HELP NEED THIS BADLLLLY !!!!!!!!!

Answers

Answer:

2 is correct

Explanation:

My friend for you this answer

You have a container which has the capacity to hold 3 L water. If it already has 2.25 L water in it, how much more water in mL can you still add to fill it completely?

Answers

3-2.25 = 0.75 L
0.75 L = 750 mL

What are two things that interact that determine if there is a phase change or not HELP

Answers

Answer:

phase change always has two phases in contact during the change. melting => solid & liquid; evaporation (boiling) => liquid & vapor. If only one phase is present, then phase change is not occurring. Also, when two phases are in contact, no temperature changes occur. Only the pure phase demonstrates temperature change when measured. Example, when ice is added to water, at thermal equilibrium (temp = 0°C) the water temp will not continue to change. Only when all the ice has melted will the water temperature demonstrate a measured temperature change.

Explanation:

B) Which of these is NEVER an example of freshwater? A) Pacific Ocean B) Okefenokee Swamp Mississippi River Lake Pontchartrain.
​

Answers

Answer:

Lake pontchartrain

Explanation:

CuCl2(aq) + Na3PO4(aq) =>?
Net ionic equation

Answers

If you are balancing the equation, your final one should be

Cu3(PO4)2 +6 NaCl.
The reaction is a double replacement reaction

How many grams of phosphorous is in the human skeleton if its average
weight is 11 kg and contains 58% of calcium phosphate (Ca3(PO4)2)?

Answers

I think 310.2 g/mol

hope this helps
3.10.2
I think most likely yes

In which atmospheric layer is the ozone layer? O stratosphere o thermosphere O mesosphere troposphere​

Answers

Answer:

The stratosphere

Explanation:

Which of these items is made up of one or more molecules?
Gold
Hydrogen
Salt
Neon

Answers

2 one hope it’s right

The item that is significantly made up of one or more molecules is hydrogen. Thus, the correct option for this question is B.

What is a Molecule?

A molecule may be defined as a group of one or more atoms that are held together by numerous chemical bonds. It is the smallest particle of a substance that has all sorts of physical and chemical properties of that substance.

Among the given options, gold and neon are the elements, while salt is a compound. Hydrogen is a gas of diatomic molecules bearing the formula H2. It is colorless, tasteless, odorless, non-toxic, and highly combustible. Hydrogen in its molecular form is more common.

A hydrogen molecule is one of the simplest possible molecules which significantly consists of two protons and two electrons. These protons and electrons are remarkably held together by electrostatic forces.

Therefore, the item that is significantly made up of one or more molecules is hydrogen. Thus, the correct option for this question is B.

To learn more about Molecules, refer to the link:

https://brainly.com/question/26044300

#SPJ2

Other Questions
--Please help, ill give 30 points and brainiest if your correct!!--Lisa and Alice are playing a game. Each player either receives or has to pay play money based on the results of their spin. The table lists how much a player receives or pays for various spins. What color has the greatest amount?Red Pays $5BlueReceive $4 YellowPay $1GreenReceive $3OrangePay $2 Which is the equation of a line that has a slope of -7 and a Y intercept of 2 I need help on this. Can someone explain it? Tim is 16 years old,a high school student, and lives with hi parents.He earned $5,200 and his part-time job. Select the best possible answer.(Only 1 answer) Which is true about urban areas in Egypt?Urban populations have decreased as people have moved to rural areas to escape pollution.Urban populations have increased as people have moved to cities to find better jobs.The Egyptian economy is based on trade, so most people live in urban areas along the Mediterranean Sea.Most urban areas are located far away from the Nile River to avoid destruction caused by flooding. The ___________________________ of an object is how heavy the object is The work per unit charge required to move a charge between two points in an electric circuit defines electricA) forceB) PowerC) field strengthD) potential difference What word best describes Equtano's life as a child in his family's home?Arrogant FearfulHappy Lordly Which statement about Federal architecture is true? Complete the statement with the term that makes it true.If there is no data for a value within the range, there still needs to be afor that value in a frequency table.O columnOrowOtable What is being done about the pollution from Agent Orange? Please I beg help show work A 94B 1 C 47 D 3 I will mark brainliest!Complete sentences summary of the Space Race and how it impacted the outcome of the Cold War. Ill give brainliest!! Plz answer!Look at the image for the question What mainly does Manuel feel after hiding Tomikos fox skin?Answer choices for the above questionA. angerB. guiltC. confusionD. hope Someone help please PLSSS HELP GEOMETRY!!! LOOK AT IMAGE! Arrange the computers in the order fastest to slowest: Minicomputer, Supercomputer, Personal Computer and Mainframe. Why would a pioneer traveler record events in a journal? Salman sold two computers for Rs. 24000 each. On one hegained 20% and on the other he lost 20%. Find his gain orloss percentage in the whole transaction. (Ans: L = 4%)