PLEASE PLEASE HELP! CHEM!

PLEASE PLEASE HELP! CHEM!

Answers

Answer 1

Answer:

0.963158 maybe just put 0.96

Explanation:

732mmhg to atm is 0.963158 i looket it up sorry if I am wrong


Related Questions

One student made the incomplete diagram shown below to represent the relationship between Magma, Igneous Rocks, and Metamorphic Rocks.

Which of these is the correct next step to complete the diagram?

A. Put an arrow labeled deposition and lithification, pointing from Igneous Rocks to Magma.
B. Put an arrow labeled heat and pressure, pointing from Magma to Igneous Rocks.
C. Put an arrow labeled heat and melt, pointing from Metamorphic Rocks to Magma.
D. Put an arrow labeled cools and crystallizes, pointing from Igneous Rocks to Metamorphic Rocks.

Answers

Answer:

the answer is B

Explanation:

this shows the next step and shows how magma turns into igneous rocks by heat and pressure

Heart, 5 stars, and Brainiest if right! Answer needed ASAP PLEASE!What type of forces do not change the motion of an object?
A. Acceleration forces
B. Balanced forces
C. Inertia forces
D. Unbalanced forces

Answers

Answer:

unbalanced force

Explanation:

pls mark me brainliest

Answer:

B. balanced forces

Explanation:

the motion of an object will not change if the forces pushing or pulling the object are balanced

Look at the diagram of 2 basic cell types. Which of the following describes cell 2?
A) a plant cell
B) an animal cell
C) a eukaryote cell
D) a prokaryote cell

Answers

It’s D prokaryote - it best describes cell two

which type of element pairs can form ionic bonds

Answers

Answer:

Between metal and nonmetal ion's

Explanation:

for example, sodium (Na),a metal and a chloride (Ci

What is one advantage of asexual reproduction?
O A. It is advantageous in a changing environment.
B. It is the slowest way to reproduce.
O C. It results in genetically different offspring.
D. It requires only one parent.

Answers

Answer: D.

Explanation:

Asexual reproduction requires only one parent, making it more efficient and take a shorter amount of time than sexual reproduction.

D because the rest are directed toward sexual reproduction

0.1216 g
wire
All
g
of
20 mL of 1M HCl
neutralized by addition of 50 mL of 0.20 M NaoH
Find the Atomic mass of Mg ?
added
magnisium was added
the excess
acid
was

Answers

Keep Scrolling! :D

[tex] \rule{999pt}{66646pt}[/tex]

Tums is a popular remedy for acid indigestion. A typical Tums tablet contains calcium carbonate mixed with inert substances. When ingested, it reacts with stomach acids (hydrochloric acid) to produce carbon dioxide gas. When a 1.241 g tablet reacted with 43.435 mL of hydrochloric acid, carbon dioxide gas was produced and the final solution weighed 52.122 g. Calculate the number of liters of carbon dioxide gas released. When a 1.241g Tums tablet reacted with 43.435 mL of hydrochloric acid (density: 1.140 g/mL), carbon dioxide gas was produced and the resulting solution weighed 50.571 g. Calculate the mass of carbon dioxide gas released.

Answers

The mass of CO2 obtained in the reaction by stoichiometry is 30.8 g.

The equation of the reaction is;

2HCl(aq) + CaCO3(s) -----> CaCl2(aq) + H2O(l) + CO2(g)

The mass of the HCl reacted is obtained from;

Density = mass/volume

Mass = Density × volume =  1.140 g/mL ×  43.435 mL = 49.5 g

Number of moles of HCl =  49.5 g/36.5 g/mol = 1.4 moles

If 2 moles of HCl reacts produces 1 mole of CO2

1.4 moles of HCl produces x moles of CO2

x = 1.4 moles × 1 mole/ 2 moles = 0.7 moles

Mass of CO2 produced = 0.7 moles  x 44 g/mol = 30.8 g

In the second case, the same volume of acid is used hence the same mass of CO2 is obtained.

Learn more about stoichiometry: https://brainly.com/question/9743981

which of the following forces could be used in electronic devices?

spring
gravitational
applied
magnetic

Answers

It’s should be magnetic

Answer:

Explanation:

poop

Could a single person or animal be a point source pollution

Answers

Yes, mostly humans do things 24/7 that pollutes the air around us

Answer:

the main cause of pollution is mankinds work like gases and extreme heat caused by factories and cars and littering is also caused by people's careless throwing away so In term man kind is responsible for the pollution

Explanation:

What is the lowest frequency photon that can ionize a hydrogen atom with excited state electron configuration 3s^1?

Answers

67 because it’s the lowest frequency photon

1. Which of the following shows the process of freezing?'
A.candle wax cooling on the table
B.pouring cola over ice
C.heating a cup of water
D.particles are speeding-up and colliding more

Answers

A, as the process of the wax getting cooler and hardening is it freezing. The other examples relate more to heating than freezing.

Carbon has a half-life of 5,730 years and you found a fossil with 4 atoms of Carbon and 12 atoms of
Nitrogen, how old would it be?

a. 0 years old
b. 5,730 years old
c. 11,460 years old
d. 17,190 years old

Answers

Answer:

D. 17,190 years old

Electrolysis Is One of the Modern Technologies in Architecture’ Prepare an Investigatory Report That Supports the Statement”.​

Answers

Electrolysis is a technique that separates natural elements. It is commercially used to obtain important materials (e.g., pure metals) for construction.

Electrolysis refers to the use of an electric current to trigger non-spontaneous chemical reactions.

This technology (electrolysis) is commercially important in industry, construction and therefore also in architecture in order to extract metals and minerals from the ground.

Electrolysis uses particular electrolytic cells in order to extract highly pure metals from ores.

Learn more about electrolysis here:

https://brainly.com/question/12054569

Answer: Electrolysis is a technique that separates natural elements. It is commercially used to obtain important materials (e.g., pure metals) for construction.

Electrolysis refers to the use of an electric current to trigger non-spontaneous chemical reactions.

This technology (electrolysis) is commercially important in industry, construction and therefore also in architecture in order to extract metals and minerals from the ground.

Electrolysis uses particular electrolytic cells in order to extract highly pure metals from ores.

Learn more about electrolysis here:

brainly.com/question/12054569

How does the water cycle contribute to the "brown ocean" effect?

Answers

Answer:

Hurricanes and tropical storms gain their power from heated water evaporating from the ocean.

Explanation:

Brown Water Effect The brown ocean effect is an observed weather phenomenon involving some tropical cyclones after landfall. Normally, hurricanes and tropical storms lose strength when they make landfall, but when the brown ocean effect is in play, tropical cyclones maintain strength or even intensify over land surfaces.

2. In which state of matter do particles vibrate in place? *
1 point
A. gas
B. solid
C. liquid

Answers

solid.................

Answer:

b solid

Explanation:

i know for a fact

How many liters are in a cubic meter? 100,000 100 10,000 1,000 10 NEXT QUESTION

Answers

1,000 is the answer.


3. Given 20g of Barium Hydroxide, how many grams of
Ammonium Nitrate would it take for all the Barium Hydroxide
to react? Balance the chemical equation first

Answers

The number of grams of ammonium nitrate (NH₄NO₃) it would take for all the barium hydroxide to react is 18.7g

First, we will write the balanced chemical equation for the reaction

The balanced chemical equation for the reaction is

Ba(OH)₂ + 2NH₄NO₃ → 2NH₄OH + Ba(NO₃)₂

This means, 1 mole of barium hydroxide is required to react with 2 moles of ammonium nitrate

Now, we will calculate the number of moles of barium hydroxide present.

Mass of barium hydroxide (Ba(OH)₂) = 20 g

Using the formula

[tex]Number\ of\ moles = \frac{Mass}{Molar\ mass}[/tex]

Molar mass of Ba(OH)₂ = 171.34 g/mol

∴ Number of moles of Ba(OH)₂ present =[tex]\frac{20}{171.34}[/tex]

Number of moles of Ba(OH)₂ present = 0.116727 mole

Now,

Since 1 mole of barium hydroxide is required to react with 2 moles of ammonium nitrate

Then,

0.116727 mole of barium hydroxide will react with 2 × 0.116727 mole of ammonium nitrate

2 × 0.116727 = 0.233454 mole

∴ Number of moles of NH₄NO₃ required is 0.233454 mole

Now, for the mass of ammonium nitrate (NH₄NO₃) required

From the formula

Mass = Number of moles × Molar mass

Molar mass of NH₄NO₃ = 80.043 g/mol

∴ Mass of NH₄NO₃ required = 0.233454 × 80.043

Mass of NH₄NO₃ required = 18.68636 g

Mass of NH₄NO₃ required ≅ 18.7g

Hence, the number of grams of ammonium nitrate (NH₄NO₃) it would take for all the barium hydroxide to react is 18.7g

Learn more on determining mass of reactant required here: https://brainly.com/question/11232389

chemist wished to find the volume of a large barrel and had no equipment for measuring the amount of water needed to fit it. He added of 400g of pure sodium chloride barrel and filled with chlorine free water. After thorough mixing a 100 ml sample of the solution re

Answers

Answer:

Place the object in the graduated cylinder, and record the resulting water volume as "b." Subtract the volume of the water alone from the volume of the water plus the object. For instance, if "b" was 50 milliliters and "a" was 25 milliliters, the volume of the irregularly shaped object would be 25 milliliters.

how much sucrose can dissolve in 200g of water at 70 °C?​

Answers

Answer: The solubility of sucrose in water at 70o C is 320 g per 100 g of water.

The maximum amount of a substance that can be dissolved in a solvent at a given temperature is referred to as its solubility.

Sucrose has a solubility of 320 g/100 g H2O at 70°C.

How is solubility usually measured?The equilibration of a suspension followed by an assessment of the solution composition, from which the solution concentration can be determined, is a widely accepted and accurate method for measuring solubility.The maximum amount of a substance that can be dissolved in a solvent at a given temperature is referred to as its solubility. This type of solution is known as saturated. To calculate the solubility in g/100g, divide the mass of the compound by the mass of the solvent and multiply by 100 g.The ability of a compound to dissolve in a liquid that functions as a solvent aids in the determination of the solubility test. The tests are critical because they determine the polarity of unknown compounds.

Sucrose has a solubility of 320 g/100 g H2O at 70°C.

To learn more about :  solubility.

Ref : https://brainly.com/question/23946616

#SPJ2

Which best explains why a person can tell the difference between a whisper and a yell?
O Sound waves turn into chemical signals that indicate certain sounds.
Different vibrations in the ear cause the bras o interpret different sounds.
The fluid in the cochlea picks up electrical signals for the intensity of sound.
The eyes see what is making the noise and help the brain process the sound.

Answers

Answer:

The difference is the louder the sound the bigger the waves and your ears collect the sound waves and brings it to you brain

Explanation:

Answer:

Hey! The correct answer is D.) Different vibrations in the ear cause the brain to interpret different sounds.

Explanation:

I got a low score on the test but yeah I got that one correct so It's D

What is the pH of a solution with a 3.2 x 10−5 M hydronium ion concentration? (5 points)

Select one:
a.4.3
b.4.5
c.11
d.12

Answers

B. 4.5

I looked it up

Answer:

b. 4.5

Explanation:

Since it is hydronium ion concentration, that means it is an acid.

pH formula = -log[H3O+]

-log(3.2 x 10^{-5} = 4.5

Calculate the wavelength of X-rays of frequency 5.00 x 100 Hz (Hz=Hertz=cycles/sec).

a) 1.20 nm
b) 0.398 nm
C) 0.600 m
d) 1.20 m
e) 0.600 nm

Answers

Answer:

no correct answer please mention other answers.

wavelength=30000000/frequency

the mechanism of phosphorus fixation in the alkaline soil and acid soils​

Answers

Answer:

absorption or precipitation or by both

Explanation:

A sample of N2O gas has a density of 2.95 g/L at 298 K. What must be the pressure of the gas?

Answers

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A sample of N2O gas has a density of 2.95 g/L at 298 K. What must be the pressure of the gas?

[tex]\huge\fcolorbox{aqua}{lime}{Answer}[/tex]

P = 1203 mm Hg

[tex]\huge{\underline{\underline{\boxed{\sf{\purple{Explanation}}}}}}[/tex]

#Given: -

p = 2.85 g/L

T = 298 K

# Solution :-

According to ideal gas equation -

➡PV = nRT

➡PV = (W/M)RT

➡PM = (W/V)RT

➡PM = PRT

➡P = pRT/M

➡P = 2.85 × 0.082 x 298 / 44

➡P = 1.583 atm

➡P = 1.583 × 760

➡P = 1203 mm Hg

Therefore, pressure of the gas. must be1203 mm of Hg.

Hope this helps you:)

why is it important to use compound fixative in histology​

Answers

Answer:

To prevent autolysis (enzymes attack) as well as putrefaction (bacterial attack) of tissues.


Which of the following is true about the mass of atoms?
А
An individual atom has no mass.
B
The atom of every element has a unique mass.
С
The mass of an atom increases with temperature,
D
The mass of an atom varies over time

Answers

Answer:

i think the answer is C , atom mass increases with temperature

4.
TRUE OR FALSE?
Frequency is how often a wave occurs in a given time period.
Group of answer choices

True
False

Answers

Answer:

The answer to this question is True

given the reaction 4Na(s) +O2 -> 2Na2O How many grams of Na2O can form from 3.0g of Na? use these molecular weight Na=23g/mole and O = 16g / mole​

Answers

No. of moles = mass / molecular weight
n = m / Mr
n = 3 g / 23 g/mol
n = 0.13 mol / 4
n = 0.0326 mol

Mr of Na2O = 23+23+16 = 62 g/mol

n = 0.0326 mol x 2 (because you have 2x Na2O) = 0.0652 mol

m = n x Mr
m = 0.0652 mol x 62 g/mol
m = 4.04 g

Why is the same type of nail used in all test tubes? ​in every experiment done to show how rusting works and in what conditions.

Answers

in test tube 1 iron nail gets both air and moisture which is required for rusting. ... in the test tube 3 iron nail is not rusted because of the calcium chloride which is moisture absorber. hence nail would not get moisture for the rusting.

Heart, 5 stars, and Brainiest to first right answer!

Nicole pushes her bike up a hill. Overhead, the sun exerts a gravitational force on Earth. Which statement is true about the bike and Earth?
A. They both experience contact forces.
B. They both experience non-contact forces.
C. The bike experiences a non-contact force and Earth experiences a contact force.
D. The bike experiences a contact force and Earth experiences a non-contact force.

Answers

Answer:

D. The bike experiences a contact force and Earth experiences a non-contact force.

Answer:D. The bike experiences a contact force and Earth experiences a non-contact force.

Explanation:

why is because tthe force wil make the bikw wobbly and boom no contact force

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