Chemistry High School

Can someone please please help me please

Answers

Answer 1

Explanation:

there is what i got hope it helps. ❤❤❤❤❤

Related Questions

Europe and United States use geothermal power extensively.

True
False

Answers

Answer:

True

Explanation:

US. With an installed capacity of 3,639MW in 2018, the US is the leading producer of geothermal energy across the world, producing 16.7 billion kilowatt hours (kWh) of geothermal energy throughout the year. More recently, extensive direct heat utilization projects have been undertaken in many European countries, and electric power developed extensively in Italy and Iceland. Geothermal heat pumps became extensively used in Austria, Switzerland, Germany and Sweden (Antice, Miklos and Sanner, Burkhard, 2007).

A 4.00g sample of helium has a volume of 24.4L at a temperature of 25.0 C and a pressure of 1.00 atm. The volume of the helium is reduced to 10.4L, but the temperature and pressure of the gas are kept constant. What is the new quantity of the gas in moles

Answers

Answer:

0.852 mol

Explanation:

First we convert 4.00 g of helium (He) into moles, using its molar mass:

4.00 g ÷ 2 g/mol = 2 mol He

To answer this problem we can use Avogadro's law, which states that at constant pressure and temperature:

V₁n₂=V₂n₁

Where:

V₁ = 24. 4 Ln₂ = ?V₂ = 10.4 Ln₁ = 2 mol

We input the data:

24.4 L * n₂ = 10.4 L * 2 mol

And solve for n₂:

n₂ = 0.852 mol

Exothermic reactions have _____ net bond energy.

A) positive
B) negative
C) neutral

Answers

I think it has a negative reaction.

Negative yeahhbb is the answer

What fossil helped support Wegener's hypothesis of continental drift?

A. Gondwanaland
B. Kannemeyerid
C. Mesosaurus
D. Glossopteris

Answers

Answer:

Glossopteris

Explanation:

Glossopteris is a fossil fern that helped support Wegener's hypothesis.

Hope this helps! Have a great day!

Other Questions

Pov:: You are going for a walk and randomly a person wearing a suit runs up to you and says this Weve been trying to contact you regarding you cars extended warranty for quite some time now, this will be out final attempt to try and reach you.(Someone said i needed to type more and this is all i could think of.) Examine Item A in your test documents. Which municipal area most likely hasthe least influence on elections due to the reapportionment shown?A. GardinerB. WoodstockC. ShawangunkD. Rochester True or false: The following sentence is correct? In thirty years, Rodriguez claims, we will all be in driverless cars. Select one:TrueFalse Europe and United States use geothermal power extensively.TrueFalse On Tuesday, Chris swam 6 laps in 5 1\10 minutes. On Wednesday, he swam the same distance in 4 7\10 minutes. How much faster did he swim on Wednesday?and please show the answer. 10 extra points for work showed :) ANSWER THE QUESTION FOR BRAINLIEST Ellen has a balance of $15,000 on her car loan and an interest rate of 2.75%. To pay off the $15,000 in five years, Ellen will have to make a minimum payment of $267.87. If Ellen pays $434.57 per month she can pay off her auto loan in 3 years instead. How much more will Ellen pay if she takes 5 years to pay off her loan instead of 3 years? Which of the following is a true statement?New matter is being created all the time.Matter is never created only changes from one form to another.Matter can never be changed from one form to another. On a summer's day, beach sand will feel, and be, much hotter than the adjacent water due to the sand's lower thermal conductivity.true or false? T-T Please help me with the answer to these. The second picture goes along with the first Pls help I have this homework !! bye I will mark you the best or brainliest!! helpppp helping my sister Q3: In Placental Mammals the mother provides the embryo with everything it needs. True or False q4: In Metamorphosis, major body changes occur, as animals develop from young organisms into adults. True or False q5: Complete Metamorphic has three stages. True or False q6: Incomplete Metamorphic has four stages. True or False q9: The stage in which a young insect is enclosed in a protective covering is egg. True or False He was very nice and talked slow like Miss Kinnian does and he explaned it to me that it was a raw shok. He said pepul see things in the ink. I said show me where. He said think. I told him I think a inkblot but that wasnt rite eather. He said what does it remind you - pretend something. I closd my eyes for a long time to pretend. I told him I pretned a fowtan pen with ink leeking all over a table cloth. Then he got up and went out. Flowers for Algernon, Daniel Keyeswhat characterizes Charlie in this passage description of Charlie what other people say about Charlie how Charlie thinks If you want to build a good team, you should focus on how is the periodic table important for all of science and not just chemistry? pleas answer me I did my best to fit it all lol, can someone please help? What is7.5% tax ona $18sweater?19.35 or 1.35 What physical property of matter determines the earth ? Alyssa has 30 pencils, where 60% of the pencils are sharpened. How many sharpened pencils does Alyssa have?