Answer:
electrons gain energy
Explanation:
The gas laws explain how __ gases ___ . There is actually no such thing as an ideal gas, but these laws still explain generally how gases behave. The separate laws combine into an “_____”.
what’s the missing blanks ?
The gas laws explain how ideal gases are . There is actually no such thing as an ideal gas, but these laws still explain generally how gases behave. The separate laws combine into an equation ”.
Hope it helps you...
Answered by Benjemin
How can we explain the abrupt change from solid to gas that we see between the elements
carbon and nitrogen?
24.04.2021
Science
Junior High School
answered
8. What happened to the molecules when there is change from solid to gas state?
a. The molecules are deposited on cold surface.
b. The molecules are heated.
c. The molecules are bonded with a strong force.
d. All of the above.
9. What can you infer from an ice cube left at an open air?
a. There is a transformation process from solid to liquid.
b. There is a transformation process from liquid to solid.
c. Melting takes place when the temperature is higher.
d. There is no observable process taking place.
10. Which of the following illustrates that gas turns into liquid?
a. melting of ice
b. . steam from boiling water
Gases can be liquified or sublimed to solids. The reverse can also be done. Carbon and nitrogen gases can be formed from their solid state on burning fossil fuels and other decomposing materials under high pressure.
What is sublimation?Sublimation is the physical process of conversion of a material from its solid state to gaseous phase or vice versa. These physical changes involves no bond making or bond breaking.
Non-metals such as carbon, oxygen, nitrogen etc are exists in gaseous state. However they can be liquified under high pressure and low temperature. This process is called condensation.
Some gases can be even converted to solids by extremely high pressure and very low temperature. Solids can be melted into liquids. Similarly they can be converted into gaseous state. But the gases have the tendency to be gaseous form and they form the condensed state at high pressure only
Burning he carbonaceous materials such as fossil fuels evolves carbon gas. We know the evolvement of carbon dioxide from the soda bottle. Similar way, when the pressure is released, solid carbon and nitrogen can be released into their gaseous form.
To find more about sublimation, refer the link below:
https://brainly.com/question/28626755
#SPJ2
Need answer for 9.0mm x 2.0mm x 2.0mm
Answer: 36
Explanation: good luck
The answer for 9.0mm x 2.0mm x 2.0mm is 36 mm³ or 0.036 milliliters.
What is Conversion factor ?A conversion factor is a number used to change one set of units to another, by multiplying or dividing.
When a conversion is necessary, the appropriate conversion factor to an equal value must be used.
Volume fo object = Side³
= 9.0mm x 2.0mm x 2.0mm
= 36 mm³
Therefore, The answer for 9.0mm x 2.0mm x 2.0mm is 36 mm³ or 0.036 milliliters.
Learn more about volume here ;
https://brainly.com/question/1578538
#SPJ2
Of the following, which compound has the highest boiling point? Hexanone Hexanoic acid 1-Hexanol Hexanal
What is the mass of 5 mole of ammonia . Calculate the number of NH₃ molecules, nitrogen atom and hydrogen atoms in it..
Molar mass of NH_3
[tex]\\ \sf\longmapsto 14u+3(1u)[/tex]
[tex]\\ \sf\longmapsto 14u+3u[/tex]
[tex]\\ \sf\longmapsto 17g/mol[/tex]
We know.
No of moles=Given mass/Molar mass
[tex]\\ \sf\longmapsto Given\;Mass=17(5)[/tex]
[tex]\\ \sf\longmapsto Given \:Mass\:of\:NH_3=85g[/tex]
Now
Lets write the balanced equation
[tex]\\ \sf\longmapsto N_2+3H_2=2NH_3[/tex]
There is 2moles of Ammonia 3moles of H_21mole of N_2Now
[tex]\boxed{\sf No\:of\:Molecules =No\:of\;moles\times Avagadro\:no}[/tex]
For Hydrogen
[tex]\\ \sf\longmapsto 3\times 6.023\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 18.069\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 1.8\times 10^{22}molecules[/tex]
For Ammonia
[tex]\\ \sf\longmapsto 2\times 6.023\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 12.046\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 1.2\times 10^{22}molecules[/tex]
For Nitrogen
[tex]\\ \sf\longmapsto 1\times 6.023\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 6.023\times 10^{23}molecules[/tex]
Which of the following is NOT a chemical?
O sound
sugar
9
water
12
salt
Answer:
water is not the chemical hope ur help
What is the volume of sodium hydroxide,
NaOH solution used to neutralised 25.00 mL
of 0.1500 M hydrocloric acid, HCI?
Answer:
sorry i don't know this question answeer
Some insects, like bees, can see light of shorter wavelengths than humans can see. What kind of radiation do you think a bee sees?
Answer:
ultraviolet light (UV light)
Mixture of oil and water heterogeneous?give reasons.
Answer:
because mixed particles are visible in this mixture.
Answer:
Oil and water do not mix, instead forming two distinct layer called phase. The oil phase is less dense than the water phase, and so the oil floats on top of the water.
Which of the following are considered elements:
Answer:
considered as element
Helium He
What will form when we add Co2 plus H20.
help me please. i wil mark you brainlist.
if your answer helps me i will add your name and tells other to follow you
Answer:
CO² + H²O ---------). H²CO³answer is this. all the numbers above alphabet will be bellow. while writing remember
Explanation:
CO² mean Carbon dioxide
H2O mean Water
H²CO³ mean Carbonic acid
Carbon dioxide+H²O = Carbonic acid
mark me brainlist if it helps
True or False?Proteins are an important nutrient because they provide the elements nitrogen and sulfur, which are not provided by dietary carbohydrates and lipids.
When you wash your hands or dishes, you probably don't use just water. In 5-7 sentences, explain what
you use to help you wash up, how it works, and why you think it works.
Hello! here is a paragraph you can use, that I type up to explain, make sure to not copy word for word of what I said. :)
What I use to wash up is soap. Soap has a certain ph level and includes acids and alkaline that enables water to mix and create soap foam to clean. Soap can come in many shapes and sizes, and can be either liquid, solid, or even foamy. I think soap works because when you use friction between your wet hands and the soap bar, you are rubbing the substances of the soap that clean your hands to clean your hands. I think the friction of the rubbing creates a layer of soap that can be used to clean, and when you increase friction the more change of the soap.
Have a great day,
I hope this helps!
'How many atoms are in 2.45 moles of copper?
2.46 × 1023 atoms
2.45 atoms
155.70 atoms
1.48 × 1024 atoms
Answer:
[tex]\boxed {\boxed {\sf 1.48 \times 10^{24} \ atoms \ Cu}}[/tex]
Explanation:
We are asked to find how many atoms are in 2.45 moles of copper (Cu).
We can convert moles to atoms using Avogadro's Number or 6.022 × 10²³. This is the number of particles (atoms, molecules, formula units, etc.) in 1 mole of a substance. In this case, the particles are atoms of copper. There are 6.022 × 10²³ atoms of copper in 1 mole of copper.
We will convert using dimensional analysis, so we must set up a ratio using Avogadro's Number.
[tex]\frac {6.022 \times 10^{23}\ atoms \ Cu}{ 1 \ mol \ Cu}[/tex]
We are converting 2.45 moles of copper to atoms, so we multiply the ratio by this value.
[tex]2.45 \ mol \ Cu*\frac {6.022 \times 10^{23}\ atoms \ Cu}{ 1 \ mol \ Cu}[/tex]
The units of moles of copper cancel.
[tex]2.45*\frac {6.022 \times 10^{23}\ atoms \ Cu}{ 1}[/tex]
The denominator of 1 is the same as the numerator by itself, so it can be ignored.
[tex]2.45* {6.022 \times 10^{23}\ atoms \ Cu}[/tex]
[tex]1.47539 \times 10^{24} \ atoms \ Cu[/tex]
The original measurement of moles (2.45) has 3 significant figures, so our answer must have the same. For the number we found that is the hundredth place. The 5 in the thousandth place to the right tells us to round the 7 up to an 8.
[tex]1.48 \times 10^{24} \ atoms \ Cu[/tex]
There are approximately 1.48 × 10²⁴ atoms of copper in 1 mole of copper.
Answer:
[tex]:\implies \rm Moles =\dfrac{No. \: of \: atoms}{Avogadro's \: number} \\ [/tex]
[tex]:\implies \rm M =\dfrac{N}{N_A} \\ [/tex]
[tex]:\implies \rm N=M \times N_A \\ [/tex]
[tex]:\implies \rm N=2.45\times6.022 \times {10}^{23} \\[/tex]
[tex]:\implies \rm N=14.7539\times {10}^{23} \\[/tex]
[tex]:\implies \rm N=1.47539\times 10^1\times {10}^{23} \\[/tex]
[tex]:\implies\textsf{ \textbf{N = 1.48$\times${10}$^{24}$}} \\[/tex]
conversion from 76 pounds to 1 gram
Answer:
76 Pounds = 34,473,020 Grams
Answer:
76 Pounds = 34,473,020 Grams
Explanation:
becuase one pound weighs 453.592 grams so i just added up
Please help me!!!!!!
Answer:
17.8ml-15.6ml is 2.2 ml then convert to cm so 2.2cm^3
Someone answer this for me ty
Answer:
The answer for this is (B: Heat)
Which statement describes a property of a proton?
O is found outside the nucleus
O has a positive charge
O has less mass than an electron
O is repelled by electrons
Answer:
has a positive chargeExplanation:
An atom is an indivisible particle and it is composed of mainly three sub atomic particles, they are protons, electrons and neutrons. The proton has a positive charge. The correct option is B.
What are sub subatomic particles?The particles which are smaller in size than an atom are defined as the subatomic particles. The positively charged subatomic particles are called the protons whereas the negatively charged particles are called electrons and neutrons are chargeless.
It is the protons and neutrons which together make up the nucleus of an atom and hence they are called the nucleons. The number of protons or electrons in an atom is known as the atomic number and the mass of proton is 1.676 × 10⁻²⁴ grams.
It was Rutherford who discovered the protons and the charge of proton is + 1.602 × 10⁻¹⁹ Coulombs.
Thus the correct option is B.
To know more about protons, visit;
https://brainly.com/question/17298811
#SPJ7
help me plz this is import this thing is late and comfusing i can give you vrainliest
Answer:
can you please mark me brainliest pleaseWhat is the correct way to smell a chemical
Answer:
If you need to smell the odor of a chemical, waft or fan the fumes toward your nose with one hand. Do not put your nose over the container and inhale the fumes.
If the average speed of a helium atom at a certain temperature is 1110 m/s, what is the speed in miles per hour? (1 mi = 1609 m)
please help and show how its done
Answer: 2483 miles/hour
Explanation:
[(1 mile/1609 meters) = 0.0006215 miles/meter]
(1110meters/sec)*(0.0006215 miles/meter)*(3600 secs/hour) = 2483 miles/hour!
Note how the units cancel to yield miles/hour. Use the units to determine what conversion factors are needed. We know that the final unit was to be miles/hour, so we converted meters into miles (firsy line) so that the meters would cancel, leaving only miles. Same for seconds and hour (3600 secs/hour).
Boys diagram for sulfur
Answer:
here is a diagram of Bohr's sulfur.
Move the following term into the correct category
mixture
pure substance
Possible answers:
compound
air
salt in water
H2O
soda
element
Answer:
Explanation:
*Mixture this is the mixing of two or more substances by physical means.
*Pure substance are substance that can not be spotted by ordinary physical means.
*Compound are substance that combine by chemical means.
* Air is are mixture of gass with different percentage..they have no general molecular formula.
* This is the ability for a salty compound to ionize in water.
* Formula for water.
* Compound containing sodium , carbon and oxygen.
*This are pure substance that can not be spited by ordinary chemical means.
The distance of 24 km equals:
O 2.4x104 m
O 2.4x10-1 m
O 2.4x103 m
2.4x10-2 m
2.4x102 m
Answer:
2.4* 10⁴ m
Explanation:
1km = 1000m = 10³m
(1*24)km = 10³ * 24 m
=> 24km = 2.4 * 10⁴m
Convert 30.0 mºto cm3.
O 3.00x105 cm
3.00x103 cm
3.00x105 cm
3.00x107 cm
3.00x 103 cm
Answer:
3.00x107 cm
Explanation:
They answer would be the 4th one
A patient is required to take an IV drug for cancer treatment. The required dosage is 5.0 mg drug her lb patient body weight every day. Each of the bags of the drug contains 250 mg drug. If you are treating a 150 lb patient,How many bags of the drug are needed each day.
Answer:
3 bags are required.
Explanation:
Find the number of mg needed for 150 pounds
150 pounds * 5 mg/pound = 750 mg
1 bag = 250 mg
x bags = 750 mg Cross multiply
250 * x= 750 Divide by 250
x = 750/250
x = 3
trong chuẩn độ, dung dịch có nồng độ chưa biết là định nghĩa của?
Answer:
skip it please, ok...? thank you
Estimating Circle the correct answer
1. Gas is $5.00 for 2 gallons and you want to fill your almost full gas tank which can hold an additional 1.5 gallons, you will spend a) $5.00 b) less than $5.00 c) more than $5.00
To fill your almost full tank with additional 1.5 gallons, you will spend less than $5.00
According to the question;
2 gallons of gas cost $5.00
Recall that your tank is almost full and what you need is additional 1.5 gallons.
If;
2 gallons of gas cost $5.00
1.5 gallons cost 1.5 * 5.00/2 = $ 3.75
$ 3.75 is less than $5.00 hence the correct answer is option B: less than $5.00.
Learn more: https://brainly.com/question/13114933
Identify the contents of the following mixtures. Select all that apply. Each circle is an atom. Different colors are used for different types of atoms. Indicate atoms only for atoms not bound to other atoms. Please remember that the elemental form of some materials is simply the atom itself.
Answer:
What’s the question
Explanation:
electrons are the most
important electrons to an atom. a) outer b) inner
