Answer:
8.7 × 10-6
Explanation:
sorry if incorrect
Answer:
[tex]8.7 \times {10}^{ - 6} [/tex]
Explanation:
[tex]0.0000087[/tex]
[tex]8.7 \times {10}^{ - 6} [/tex]
Describe what happened in the experiment. Use your observations in your description. Be sure use the relationship between pressure and volume of a gas to explain your observations.
Answer:
This relationship between temperature and pressure is observed for any sample of gas confined to a constant volume. I find that temperature and pressure are linearly related. If the temperature on the kelvin scale increases by a certain factor, the gas pressure increases by the same factor. On the can is the warning “Store only at temperatures below 120 °F (48.8 °C). Do not incinerate.” The can contains an amount of isobutane gas at a constant volume, so if the temperature increased by heating, the pressure will increase proportionately. High temperature could lead to high pressure, causing the can to burst. Just like, The gas in the can is initially at 24°C, and the can has a volume of 350 mL. If we fill a balloon with air and seal it, If we put the balloon in a refrigerator, the gas inside gets cold and the balloon shrinks. If we make the balloon very cold, it will shrink a great deal, and it expands again when it warms up. Temperature is sometimes measured with a gas thermometer by observing the change in the volume of the gas as the temperature changes at constant pressure. A volume change caused by a temperature change at constant pressure means we should use Charles’s law. Decreasing the volume of a contained gas will increase its pressure, and increasing its volume will decrease its pressure. In fact, if the volume increases by a certain factor, the pressure decreases by the same factor, and vice versa. The earth’s atmosphere exerts a pressure, as does any other gas. Although we do not normally notice atmospheric pressure, we are sensitive to pressure change, for example, when your ears “pop” during take off and landing while flying, or when you dive underwater. Although the force of each collision is very small, any surface of appreciable area experiences a large number of collisions in a short time, which can result in a high pressure. In fact, normal air pressure is strong enough to crush a metal container when not balanced by equal pressure from inside the container. Atmospheric pressure is caused by the weight of the column of air molecules in the atmosphere above an object, such as the tanker car. At sea level, this pressure is roughly the same as that exerted by a full-grown African elephant standing on a doormat, or a typical bowling ball resting on your thumbnail. These may seem like huge amounts, and they are, but life on earth has evolved under such atmospheric pressure. If you actually perch a bowling ball on your thumbnail, the pressure experienced is twice the usual pressure, and the feeling is unpleasant.
Explanation:
A contained gas's pressure rises as its volume decreases, while its pressure falls as its volume rises. In fact, if the volume increases by a certain factor, so does the pressure, and vice versa. The earth's atmosphere, like any other gas, exerts pressure.
What is the relationship between pressure and volume in gas?Boyle's Law describes the relationship between pressure and volume. The volume of a gas decreases as the pressure on it increases because the gas particles are forced closer together. As the pressure on a gas decreases, the volume of the gas increases because the gas particles can now move farther apart.
As a result, volume is inversely proportional to pressure. A straight line is obtained by plotting pressure (p) against the reciprocal of volume (1/V), the gradient of which is the constant in Boyle's Law. The number of gas particles per unit volume increases as volume decreases.
The pressure-volume relationship of a confined gas is inversely proportional. This relationship is demonstrated by the data collected and the graphs plotted.
Thus, A contained gas's pressure rises as its volume decreases, while its pressure falls as its volume rises.
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CaSO4 +
Al(NO3)3
+
Al; (507)
Ca(NO3)2
Answer:
what are you looking for?
Explanation:
The electromagnetic spectrum includes the complete range of electromagnetic waves placed in order of...
Answer: increasing frequency or energy and decreasing wavelength.
Explanation:
Electromagnetic wave is defined as the wave which is associated with both electrical and magnetic component associated with them. They can travel in vacuum as well and travel with the speed of light i.e
The electromagnetic spectra consist of radio waves, microwaves, infrared ,Visible , ultraviolet, X rays and gamma rays arranged in order of increasing frequency or increasing energy and decreasing wavelengths.
I NEED THIS URGENT PLZ
Which property of aluminium makes it useful in the manufacture of aircraft?
A conducts electricity
B high boiling point
с low density
D silver colour
Answer:
C
Explanation:
I would say C Low Density
SORRY IF I AM WRONG
HOPE IT HELPS :D
Which option describes a molecule?
A. the basic unit of matter
B. a substance that is formed when two or more atoms join
C. a pure substance that is formed when atoms of different elements come together
D. a physical substance that takes up space and has mass
A molecule is, simply put, two or more atoms (usually covalently) bonded to one another. The atoms in the molecule can be of different elements, such as in H2O or PCl3, or of the same elements, such as in F2 or O3.
So, B would be the correct answer.
The correct option is B.
B. a substance that is formed when two or more atoms join
The following information should be considered:
A molecule is basically a two or more atoms normally covalently bonded to one another. The atoms that are the molecule could be of different elements,like in H2O or PCl3, or of the similar elements, like in F2 or O3.Learn more: brainly.com/question/17429689
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At what temperature does potassium iodide
have a solubility of 150 g per 100³ cm water?
1 How many different elements (types of atoms) are in this molecule C14H9Cl5?
75 mL of water is measured in a graduated cylinder. The mass of the water should be
A.
more than 75 grams
B.
less than 75 grams
C.
there is no good way to tell
D.
75 grams
Answer:
D-75 grams
Explanation:
that is the answer
A plastic bin is found to hold 3.1x10^24 molecules of water.
Calculate the number of moles in the container.
Answer:
[tex]\boxed {\boxed {\sf 5.1 \ mol \ H_2O}}[/tex]
Explanation:
To convert from representative particles to moles, Avogadro's Number: 6.02*10²³, which tells us the number of particles (atoms, molecules, etc.) in 1 mole of a substance.
We can use it in a ratio.
[tex]\frac {6.02*10^{23} \ molecules \ H_2O}{1 \ mol \ H_2O}[/tex]
Multiply by the given number of molecules.
[tex]3.1*10^{24} \ molecules \ H_2O*\frac {6.02*10^{23} \ molecules \ H_2O}{1 \ mol \ H_2O}[/tex]
Flip the ratio so the molecules of water cancel out.
[tex]3.1*10^{24} \ molecules \ H_2O*\frac {1 \ mol \ H_2O}{6.02*10^{23} \ molecules \ H_2O}[/tex]
[tex]3.1*10^{24} *\frac {1 \ mol \ H_2O}{6.02*10^{23} }[/tex]
[tex]\frac {3.1*10^{24} \ mol \ H_2O}{6.02*10^{23} }[/tex]
Divide.
[tex]5.14950166113 \ mol \ H_2O[/tex]
The original number of molecules has 2 significant figures: 3 and 1, so our answer must have the same. For the number we calculated, that is the tenth place. The 4 in the hundredth place tells us to leave the 1.
[tex]5.1 \ mol \ H_2O[/tex]
There are about 5.1 moles of water in 3.1*10²⁴ molecules of water.
plant cells are the only type of cell with a cell wall
true
false
?
Answer:
true
Explanation:
All cells have a cell wall. Plant cells are surrounded by a cell membrane and outside this is a fairly rigid cell wall. The cell wall gives the plant cell a more definite shape than an animal cell. Animal cells do not have a cell wall.
Answer:
True
Explanation:
Animal cells don't have any cell walls while plants do
1. organisms of different species that share similar characteristics most likely have..
2. some members of a species are able to withstand very hot weather conditions due to..
Answer:
1. Parents from both species.
2. Because of natural selection.
Explanation:
A battery lighting a bulb is an example of ____energy converting to____energy.
magnetic
electrical
chemical
gravitational
heat
nuclear
kinetic
I put 5 pigs, 2 goats, and 7 horses in a boat with six cats. How many dogs are in that one Disney movie with all the dogs?
Answer:
the average weight of a frog is 0.8 ounces, so your answer would be 4
Answer:
one hundred and one
Explanation:
please Help ASASP i need help
Answer:
A
Explanation:
Its a because the temperature is increasing( getting warmer)
Exam
How many miles are there in
12,327 feet?
Answer:
2.3346591
or round to 2.3
Answer:
2.335 miles
Explanation:
2.335 miles is in 12,327 feet.
Which of these is not an impact caused by the Asian carp
a
The carp eat native species
b
The carp increase the biodiversity of an area
c
The carp damage boats and boating equipment
d
The carp take up most of the space
Carp do take up space, and damage boats, and they are invasive so they dont increase the biodiversity of an area because biodiversity is different species and a variety of species in an area.
The answer is B because the Asian Carp does not increase the biodiversity in an area.
A substance X has a melting point of 649 C a boiling point of 1107 C and id insoluble in water. State an additional test that could b done to find out whether substance X is an ionic compound
Answer:
Electrical Conductivity of the substance
Explanation:
Ionic substances do not conduct electricity in their solid state however they are good conductor of electricity when dissolved in water or in their molten state.
A test can be carried out to see if the substance matches the property above.
When sodium azide is activated in an auto-
mobile airbag, nitrogen gas and sodium are
produced according to the equation
2 NaN_(s) —> Na(s) + 3N2(g).
If 0.42 mol of NaN3 reacts, what mass of
nitrogen would result?
Answer in units of g
Answer:
17.64 grams of nitrogen gas will be produced when 0.42 moles of sodium azide decomposes in the automobile airbag.
Explanation:
From the equation of reaction given below:
2 NaN₃ (s) ----> 2 Na (s) + 3 N₂
Two moles of sodium acid will decompose to produce two moles of sodium atom and three moles of nitrogen gas.
Mole ratio of sodium azide to nitrogen gas is 2 : 3
0.42 moles of sodium azide will produce 3/2 × 0.42 moles of nitrogen gas when It decomposes
Moles of of nitrogen gas produced = 0.63 moles
Molar mass of nitrogen gas = 2 × 14 = 28 g
Mass of nitrogen gas produced = 0.63 × 28 g
Mass of nitrogen gas produced = 17.64 g
Therefore, 17.64 grams of nitrogen gas will be produced when 0.42 moles of sodium azide decomposes in the automobile airbag.
In sweet pea plants, the allele for purple flowers is dominant over the allele for white flowers. If half of the plants in one generation of sweet pea plants has purple flowers, what were the most likely genotypes of the parents?
Explanation:
The genotype for parent is going to be purple flower.
After the crossing is done, we have our p1 to be a purple flower dominant over the the yellow that is to say the parent genotype is going to be a Purple denote a capital P
A model glider has a mass of 1 kg. How much potential energy does it have 2
meters off the ground?
Explain how to count the number of elements in a compound
Answer:
The molecular formula lists the symbol of each element within the compound followed by a number (usually in subscript). The letter and number indicate how many of each type of element are in the compound. If there is only one atom of a particular element, then no number is written after the element.
in terms of ionic charge explain why the ratio of ions is 3:2
when is an electric charges neutral ??
Answer:
Atoms of matter are electrically neutral because their nuclei contain the same number of protons as there are electrons surrounding the nuclei. Electric current and charged objects involve the separation of some of the negative charge of neutral atoms.
_____ is an example of a heterogeneous mixture.
A)
Tea
B)
Salad
0
Salt
D)
Mayonnaise
B) Salad
heterogeneous mixtures have a non-uniform composition with components in at least two different phases
Which objects should not be thrown in landfills because they could leach into groundwater and pollute the water?
A. paints
B. aluminum foil
C. plastics
D. paper
How many atoms are in a 12.0g sample of lithium
Answer:
10.42
Explanation:
1.2×10²⁴atoms are in a 12.0g sample of lithium. It is also the smallest piece of substance with chemical element-like characteristics.
What is atom?The smallest unit of matter that may be split without producing electrically charged particles is the atom. It is also the smallest piece of substance with chemical element-like characteristics. As a result, the atom serves as the fundamental unit of chemistry.
Space makes up the majority of an atom. The remainder is made up of a cloud of electrons with negative charges around a positive-charged nucleus made up of protons and neutrons. Compared to electrons, that are the smallest charged particles in nature, the nucleus is tiny and dense.
Number of atom= number of moles ×6.022×10²³
number of moles = 12.0g /6=2 moles
Number of atom= 2 ×6.022×10²³=1.2×10²⁴atoms
Therefore, 1.2×10²⁴atoms are in a 12.0g sample of lithium.
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how many liters are in 1.5 moles of h2 ?
Answer:
34.35 liters
Explanation:
After setting up the formula using the mole map, you would get 1.5 (mol) times 22.4 (liters)
What do you think is the primary reason why the Unionid mussel population declined whenever there is a dramatic increase in the Zebra mussel population?
Answer:
When the Zebra arrived they ate all the food so the Unionid mussels declined as they died from the lack of food. Causing the Zebra Zebra numbers to increase and Unionid numbers to decline.
Please choose the correct sequence that describes the excitement of an atom.
Such an electron transition raises the atom from the ground state to the excited state.
When energy is added to an atom from an outside source, its electrons move to a higher energy level (orbit)
As a result, the atom emits a photon.
When the atom is in an excited state, the electron can drop from the higher energy level to a lower energy level.
A) 2, 1, 4, 3
B) 4, 3, 2, 1
C) 3, 4, 1, 2
D) 1, 2, 3, 4
what is a hydrocarbon
Answer:
A hydrocarbon is any of a class of organic chemicals made up of only the elements carbon (C) and hydrogen (H).
Explanation: