Chemistry High School

I NEED HELP FAST PLEASE
*please answer correctly*

Will mark brainliest thank you!!

I NEED HELP FAST PLEASE*please Answer Correctly* Will Mark Brainliest Thank You!!

Answers

Answer 1

Answer:

Explanation:

Using Charles Law ,

[tex]\frac{V1}{T1}=\frac{V2}{T2}[/tex]

Using this formula we have ,

V1= 200cm^3

T1=40+273.15 = 313.15 K

T2 = 100+273.15 = 373.15 k

V2= ?

Hence using above formula simplify it we will get ,

V2 = 238.3 cm^3

Answer 2

Answer:

i dont know that plzzz help me tooooo

Related Questions

Gas
% of Volume
7.
N
78
Oz
21
Ar
.9
CO2
.04
Ne
1.0018
He
.00052
CHA
.00017
Kr
.00011
H2
.00006
Using the chart above, which gases make up the majority of the Earth's atmosphere?

HELP ASAP

Answers

Answer:

this would be the .04 it is very simple

Explanation:

Ground water, the largest source of fresh water, is stored in bodies of rock and or sediment
a. porosity
b. sediment
c. particles
d. aquifers

i dont even know what this means

Answers

D. Aquifers
Hope this helps chief.

Ground water, the largest source of fresh water, is stored in bodies of rock and or sediment
a. porosity
b. sediment
c. particles
d. aquifers

i dont even know what this means

Answers

Answer:

particles

Explanation:

oof oof oof oof oof oof oof

What is the mass of 8.03 mole of NH3? (NH3 is 17g/mol)

Answers

Answer:

the mass of 8.03 mole of NH3 is 136.51 g

Explanation:

The computation of the mass is shown below:

As we know that

Mass = number of moles × molar mass

= 8.03 mol  × 17 g/mol

= 136.51 g

Hence, the mass of 8.03 mole of NH3 is 136.51 g

We simply multiplied the number of moles with the molar mass so that the mass could come

how many grams are in 7.4 moles of HgS?

Answers

Answer:  1721.6 grams

Explanation:

Home can use ____to distribute warm air from a sunroom

Answers

Answer:

Solarpannels? I honestly don't know I'm just trying to be helpful.

Which sample would show stronger (intermolecular) attractive forces, the cold water or the hot water?

Answers

Answer:

Cold water

Explanation:

A simple way to solve this kind of problems is to keep in mind that:

Solids have stronger intermolecular attractive forces than liquids, and liquids have stronger forces than gases.

Cold water behaves more similarly to solids than hot water. Conversely, hot water behaves more similarly to gases than cold water. Thus, cold water has stronger intermolecular attractive forces than hot water.

An object with a
mass acclerates slower.

Answers

Higher amounts of mass

Part 1)
One reaction that produces hydrogen gas can be represented by the unbalanced chemical equation- Mg(s) + HCl(aq) −→ MgCl2(aq) + H2(g).
What mass of HCl is consumed by the reaction of 3.15 mol of magnesium?
Answer in units of g.
Part 2) What mass of MgCl2 is produced? Answer in units of g.
Part 3) What mass of H2 is produced? Answer in units of g.

Answers

Umm well this I do not know someone should know tho

Answer:

Part 1: 229.95g

Part 2: 598.5g

Part 3: 12.6g

Explanation:

Note: I learned this last week. Answer not sure.

Pls tell me if i got it right or wrong.

Mg + HCl - > MgCl2 + H2

First, balance the equation.

There is only 1 H and 1 Cl at the left side. BUT there are 2 Cl and 2 H at the right side. So you can add a 2 in front of HCl to balance it.

Mg + 2HCl - > MgCl2 + H2

Formula 1: (n= m/mr)

n = moles, m= mass, mr = molecular mass

Formula 2: (n= v/24)

v = volume

Part 1

What mass of HCl is consumed by the reaction of 3.15 mol of magnesium?

Ratio of

(look at the number in front of each)

2HCl : Mg

2 : 1

(3.15 x 2) : 3.15 moles

6.3 moles : 3.15 moles

So 2HCl has 6. 3 moles

Now use formula 1 (n = m/mr)

Calculate molecular mass of HCl

Check your periodic table

mr of HCl =(1 + 35.5) = 36.5

6.3 = m/36.5

m = 229. 95grams

Part 2

What mass of MgCl2 is produced? Answer in units of g.

Ratio of

2HCl : MgCl2

(1 +35.5) : (24+35.5x2)

36.5: 95

229.95g :?

229.95g : 598.5g

m = 598.5g

Part 3

What mass of H2 is produced? Answer in units of g.

2HCl : H2

36.5 : 2

229.95g :?

229.95g : 12.6g

m = 12.6g

When two nitrogen atoms bond together, they form the diatomic molecule N2. Which
type of bond does N2 have?
covalent
ionic
O metallic
O semimetal
ASAP QUICK

Answers

convalent

Explanation:

I hope its helps u

covalent





i’m trying my hardest to remember

Organisms that are made up of prokaryotic cells are NOT ____________.


Question 4 options:


Bacteria



Simpler than organisms made up of Eukaryotic celled organisms



All of these are true about prokaryotic cells



Multicellular

Answers

Answer:

Multicellular

they are single celled

I WILL GIVE 50 POINTS AND BRAINLIEST What is the volume of 41.2g argon at stp???

Answers

Answer:

1645.86

Explanation:

When solid copper reacts with aqueous silver nitrate, the products are copper (II) nitrate and silver metal. How
many grams of silver would be produced from 83.94 grams of silver nitrate?

Answers

Answer:

This chemical equation means: One mole of solid copper plus two moles of aqueous silver nitrate produce one mole of copper(II) nitrate plus two moles of solid silver. This is a single replacement reaction in which the metal copper replaces the metal silver.

Explanation:

Hope this help

what is the atomic number of an atom?​

Answers

Answer:

The atomic number of an atom is the number of protons in the nucleus or the number of electrons in a neutral atom

Explanation:

number of protons in the nucleus

A CANDLE WILL STAY LIT INSIDE THE SPACE SHUTTLE WHEN IT IS ON THE LAUNCH PAD, BUT NOT WHEN IT IS IN ORBIT. WHY?​

Answers

Answer:

because there is no oxygen in space for it to burn

because all fire need oxygen to burn

Explanation:

A container of gas is initially at 0.500 atm and 298 K. What will the pressure be at 398 K?

Answers

Answer:

5

Explanation:

Can somebody help me please! Help would be much appreciated :))

Answers

Answer:

The first picture shows how the two H athoms finds each other. The second one, how these H athoms start's to form a covalent bond describing it by Lewi's estructure. And the last one, shows how the two athoms of H formed an H2 molecula.

Explanation:

Can Someone Please help me answer this question? I will try to give brainliest.

Answers

Answer:

I believe the answer is y-axis

Explanation:

Sorry if it's not I just wanted to help you in return for helping me!!

Answer:

Y axis I think

Explanation:

PLSSS HELP ME

1) Which of these bonds is most easily broken?

1. All are equally easy to break

2. Hydrogen Bond

3. Ionic Bond

4. Covalent Bond


2)Hydrogen bonds are formed due to ______.

1. Electromagnetic attraction

2. Sharing of electrons

3. Stealing of electrons

4. 'Stickiness' due to protons and neutrons


3) What is a polar molecule?

1. A molecule found either at the north or south pole

2. A molecule with a positively charged end and a negatively charged end

3. A molecule with a distinct beginning and end

4. Any molecule that includes oxygen


4)Water tension is an example of ______.

1.Oxygen bonding

2.Hydrogen bonding

3.Isometric bonding

4. Covalent bonding

Answers

Answer:

1.  2)Hydrogen Bond

2. 1)Electromagnetic attraction

3. 2) A molecule with a positively charged end and a negatively charged end

4. 2.Hydrogen bonding

* i think i am right and i really hope so but please dont

count it against me babe.

explanation:

Individual hydrogen bonds are weak and easily broken; however, they occur in very large numbers in water and in organic polymers, creating a major force in combination. Hydrogen bonds are also responsible for zipping together the DNA double helix.

A hydrogen bond is formed when the positive end of one molecule is attracted to the negative end of another. The concept is similar to magnetic attraction where opposite poles attract. Hydrogen has one proton and one electron. This makes hydrogen an electrically positive atom because it has a deficiency of electrons.

A polar molecule is a chemical species in which the distribution of electrons between the covalently bonded atoms is not even. Some chemical species, such as chains of carbon molecules, share electrons equally and are said to be nonpolar molecules

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

What are two ways that convection currents in the oceans distribute the Sun's energy? A. Icebergs are carried from the poles to the equator. B. Warm water is carried from the equator to the poles. C. Living things swim in cool and warm parts of the ocean. D. Nutrient-rich water is brought to the ocean surface​

Answers

Answer:c

Explanation:

No cap

A family pool holds 10,000 gallons of water. How many cubic centimeters is this?

Answers

Answer:

3.785412e+7cm³

Explanation:

Have a nice day.

What is the best color? Personally I think its purple.

Answers

For me sunset orange is the best color, it’s a very peaceful and calm color
purple used to be mine as well. Now it’s red since my whole family is associated with the notorious street gang called the“bloods”.

What happens during the rock cycle?

Answers

The rock cycle is the process by which rocks of one kind change into rocks of another kind. ... Each of these rocks can change into the other kinds by physical processes: cooling, melting, heat, weathering/erosion, compacting (squeezing tightly together), cementing, and pressure.

H2O2 → H2O + O2

This is showing the reaction that we used in elephant’s toothpaste. Write and balance this equation on your own sheet of paper. If 24.53 g of hydrogen peroxide decompose, how many grams of water are produced.

Answers

Answer:

75.47

Explanation:

AS WE CANT WEIGHT AIR THE ANSWER IS CORRECT

what is the formula mass of MgO (how much does one mole of it weigh)

Answers

Answer:

40.3044 g/mol

Explanation:

hope this helps

What did Albert Einstein say was the nature of electromagnetic radiation?

Answers

Answer:

Albert Einstein proposed the wave-particle theory of electromagnetic radiation. This theory states that electromagnetic energy is released in discrete packets of energy—now called photons—that act like waves.

Please help!! I'll name you brainliest!!

Answers

Answer:

the awnsers are A and C

Explanation:

because

(25 POINTS AND BRAINLIEST)What is the volume of 2 mol of chlorine gas at STP?
2.0 L
11.2 L
22.4 L
44.8 L

Answers

Answer:

44.8

Explanation:

According to standard temperature and pressure and ideal gas equation , the volume of 2 mole of chlorine gas at STP  is 44.8 liters.

What are standard temperature and pressure conditions?

Standard temperature and pressure are defined as a standard set of conditions required for experimental measurements which are established to allow comparison between different sets of data.

Standards which are commonly used are those International Union of pure and applied chemistry and national institute of standards and technology.These are not universally accepted standards but are the ones which are commonly used.

Standard conditions of pressure and temperature are necessary to define standard reference conditions used to express volumes of liquids and gases.

These values are important to physicists, chemists ,engineers ,pilots and navigators.On substituting values in ideal gas equation, volume= 2×8.314×273/1=44.8 liters.

Thus, the volume of 2 mole of chlorine gas at STP  is 44.8 liters.

Learn more about standard temperature and pressure , here:

https://brainly.com/question/29129606

#SPJ6

HELP !!!!!!!!!!!!! PLEEEAAAAASSSSSSEEEE

Answers

I need help with the same thing
match the solstice with the season of that month

spring equinox: march 21-22

summer solstice: june 20-21

winter solstice: december 21-22

fall equinox: september 22-23

HELP MEEEEEE PLEASEEEEE WILL OFFER BRAINLIEST

Answers

Answer:

1.This answer would be option A.

2. I think that would be 1350

Explanation:

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