Answer:less than
Explanation:
If we had 79.3 grams of Xe, we would expect a volume that is less than obtained with neon. So, the correct option is (C).
What is Density?Density is defined as the mass per unit volume of a substance. The most commonly used symbol for density is ρ, although the Latin letter d can also be used. Density is defined as mass divided by volume:
[tex]{\displaystyle \rho ={\frac {m}{V}}}[/tex]
where ρ is density,
m is mass, and
V is volume.
The mass contained per unit volume of an object is known as density. where the SI unit of density is kilogram per cubic meter [tex](kg/m^3).[/tex] Density is inversely proportional to volume, so the density of Xenon is [tex]5.894 kg/m^3[/tex] while the density of neon is 0.89994 kg/m³. So, if density is more than volume will be less and vice versa. In this case, density of Xenon is more as compare to neon so, the volume of neon will be more.
Thus, if we had 79.3 grams of Xe, we would expect a volume that is less than obtained with neon. So, the correct option is (C).
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How does the temperature of the air change with altitude?
HELPPPP!!!!
What property allows objects to be subject to gravity?
friction
mass
inertia
acceleration
what is a method to isolate insoluble salts after a neutralisation reaction
Answer:
multiply
Explanation:
multiplacation
Which statement correctly describes soil horizon C? A. It is considered the subsoil layer. B. It is the horizon with the smallest rock pieces. C. It is also referred to as the bedrock layer. D. It is the horizon that contains the least humus.
Help I'll help y'all
heyyyyy.
Answer:
It's D, it is the horizon that contains the least humus.
Explanation:
I just did the test
The statement which correctly describes the soil horizon is option B. The horizon B contains the the smallest rock pieces. It is also called the subsoil layer.
What is soil horizon?Soil horizon contains different layers of soil which are classified based on the composition of the soil and the presence of rocks within the soil. The primary level of the soil is rich in humus. The decomposed of matter of plants and animals are called humus. On which the plants are growing.
The secondary level of soil horizon or the subsoil level contains some small rocks also onto which the roots of plants does not adhere so much. The third level of soil horizon contains bigger rocks with small gaps between them.
The last layer of the soil horizon is called bedrock layer containing bigger rocks with no significant gaps between them It is called the bedrock layer.
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what conversion factor is needed to calculate the number of atoms in 8.6 moles of Aluminum?
A. 1 mole/ 6.02x10^23 atmos
B. 6.02X10^23 atoms/ 1 mole
C. 1 mole/ 26.98zg
D. 26.982g/ 1 mole
Answer:hey did you ever get an answer? I need it for this exam
Explanation:
Tammy spent of her savings on a watch. She then spent-of
the remainder on a
.
5
bag. What fraction of her money did she have left?
Answer:
1 / 2 of her money would be left
Explanation:
Tammy spent 2/5 of her savings on a watch. She then spent 1/6 of the remainder on a bag. What fraction of her money did she have left?
Taking the question bits by bit;
Tammy spent 2/5 of her savings on a watch
Amount Spent = 2/5
Remainder = 1 - 2/5 = 3/5
She then spent 1/6 of the remainder on a bag
Amount Spent = 1/6 * 3/5 = 1/2 * 1/5 = 1 /10
Total amount spent = 2/5 + 1 /10 = (4 + 1 ) / 10 = 5 / 10 = 1 / 2
Amount left = 1 - 1 /2 = 1 / 2
How is humility related to air pressure
Answer: Edmentum question:
The following graph shows the barometric pressure over the course of the day in Bellingham. What effect will this trend likely have on cloud cover and precipitation over the city?
a scatter plot showing the barometric pressure of an area, with air pressure on the y-axis and time on the x-axis
Explanation: edmentum answer:
In the graph, barometric pressure is decreasing. The drop in pressure represents a low-pressure system. This type of system will cause an increase in cloud cover and precipitation.
How many GRAMS of H2 would you need to produce 2.5 mol NH3?
Using the proportions of the amount of the molecules, we can convert from any reagent or product to any other reagent or product. In the context of this reaction, for every mole of N2 and every 3 moles of H2 we obtain 2 moles of NH3.
PLEASE HELP ANSWER ALL PARTS!!!
Answer:
The student should have multiplied the molar mass, which was not found, by the number of moles to get an answer of 925grams of Ca(OH)2.
Please find the correct step below
Explanation:
According to the question attached, the student was asked to find the mass in grams of a 12.5mol of Ca(OH)2.
Using the formula;
mole = mass ÷ molar mass
Molar mass of Ca(OH)2 = 40 + (16 + 1)2
= 40 + 17(2)
= 40 + 34
= 74g/mol
From the above formula;
Mass in grams = mole × molar mass
Mass (g) = 12.5 × 74
Mass (g) = 925grams of Ca(OH)2.
Are physical characteristics of an organism not genetically passed down?
In an ecosystem, the physical characteristics of an organism are genetically passed down from one generation to another.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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A sample of an oxide of nitrogen is found to contain 30.4% nitrogen. What is its empirical formula?
Answer:
If nitrogen = 30.4% then oxygen = 100-30.4 = 69.6%
divide each % value by atomic mass
N = 30.4/14 = 2.17
O = 69.6/16 = 4.35
Divide each y smaller:
N = 2.17/2.17 = 1
O = 4.35/2.17 = 2
Explanation:
"The empirical Formula will be [tex]NO_{2}[/tex]."
What is empirical formula?
In chemistry, an empirical formula is the simplest thought of the entire number quantity of atoms in a molecule.
It is given that N = 30.4%.
The % of O can be determined as: 100-30.4%= 69.65.
Now, after dividing % value with atomic mass, we get.
Mass of N= 14 and Mass of O = 16.
N= 30.4/14= 2.17
O = 69.6/ 16= 4.35
It can be seen that N has less number as compared to O . So, divide each with 2.17.
N= 2.17/2.17 = 1
O = 4.35/2.17=2
So the empirical formula will be [tex]NO_{2}[/tex].
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What is the motion of the particles in this kind of wave?
A.the particles will move up and down over large areas.
B.the particles will up and down over small areas.
C.the particles will move side to side over small areas.
D.the particles will move side to side over large areas.
Answer:
not sure sorry
Explanation:
Predict: In each "Climate type" box, Highlight the condition you think will lead to the fastest weathering for the given weathering type.
Weathering type
Climate type
Frost wedging
Hot
Cold
Wet
Dry
Clay formation
Hot
Cold
Wet
Dry
Dissolving
Hot
Cold
Wet
Dry
Answer:
Frost Wedging - Hot and dry
Clay Formation - Cold and Wet
Dissolving - Cold, and dry
Explanation:
The frost wedging happen when the climatic condition is hot and dry. The dry weather compensates the heat and the rock wedging happens quickly. For clay formation the weather has to be cold and wet. The cold weather will make the sand indulge with rock particles resulting in the clay formation.
How many grams are in 21.4 mol Cl2 gas?
Cl2 = 70.9 g/mol
=
[tex]21.4 \: mol \times \frac{70.9 \: g}{1 \: mol} = 1517.26 \: g[/tex]
Uniformitarianism is the idea that
Answer:
Uniformitarianism is the idea that the natural processes operating today are the same as the natural processes that operated in the past
Please help fast, I will give brainliest.
Answer:
B
Explanation:
Why does the moon's gravitational pull have more effect on Earth's tides than the sun's gravitational pull?
A. The moon is closer to the Earth than the sun.
B.The moon has more mass than the sun.
C. The moon is more dense than the sun.
D. The moon has a greater diameter than the sun.
can someone help w/ chem plzz
Answer:
my answer I think is tetrahedral
I need help I'll mark you as Brainliest
Answer: c
Explanation:
how do compaction and cementation cause sediments and form sedimentary rock
Answer:
Dissolved minerals in the ground water precipitate (crystallize) from water in the pore spaces forming mineral crusts on the sedimentary grains, gradually cementing the sediments, thus forming a rock
Explanation:
How many atoms are in 1.22 moles of magnesium?
Answer:
7.34684 × 10^23 atoms
Explanation:
Well, one mole is basically
6.022 × 10^23 atoms. So 1.22 moles would be
6.022 × 10^23 ⋅ 1.22 atoms.
6.022 × 10^23 ⋅ 1.22 = 7.34684 × 10^23 atoms
The total number of atoms in 1.22 moles of magnesium is 7.34 × 10²³.
One mole of a substance is equal to 6.022 × 10²³ units of that substance (such as atoms, molecules, or ions).The number 6.022 × 10²³ is known as Avogadro's number or Avogadro's constant.Given:
1.22 moles of magnesium
[tex]1 \text{ mole}= 6.022*10^{23}\text{ atoms}\\\\1.22 \text{ moles}= 1.22*6.022*10^{23}\text{ atoms}\\\\1.22 \text{ moles}=7.34*10^{23}\text{ atoms}[/tex]
So, the total number of atoms in 1.22 moles of magnesium is 7.34 × 10²³.
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What are some genaral properties of gases that govern their behavior
Answer:
1. Gases may be compressed
2. Gases expand when less pressure is applied.
3. Gases can be mixed.
4. Gases exert a constant pressure on its container walls.
5. Gases have low densities.
why an aspirin tablet works faster if it is crushed rather than swallowed whole?
Answer: because the tablet is already crushed and is easy for the organism to absorb instead of having to break it down
Explanation:
calculate the volume occupied by 10g of propane gas, under normal conditions of temperature and pressure
Answer:
5.5 L
Explanation:
First we convert 10 g of propane gas (C₃H₈) to moles, using its molar mass:
10 g ÷ 44 g/mol = 0.23 molThen we use the PV=nRT formula, where:
P = 1 atm & T = 293 K (This are normal conditions of T and P)n = 0.23 molR = 0.082 atm·L·mol⁻¹·K⁻¹V = ?1 atm * V = 0.23 mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 293 K
V = 5.5 LTwo forms of energy found in all systems are kinetic energy and
Answer:
Potential energy
Explanation:
If I initially have a gas at a pressure of 12 kPa, a volume of 23 liters, and a temperature of 200 K, and then I raise the pressure to 14 kPa and increase the temperature to 300 K, what is the new volume of the gas?
Answer:
The new volume of gas would be 30 L.
Explanation:
This is an example of a Combined Gas Laws problem.
Which type of organism is responsible for performing the majority of nitrogen fixation?
Answer:
B. bacteria
Explanation:
they are responsible for the fixation of nitrogen
Answer:
the answer is B bacteria
If one of the cars began with 5.6 liters of gasoline and oxygen, how much water and carbon dioxide do you think would be produced from that gasoline and oxygen?
Answer
5.6 L
Explanation:
whatever you start with, you end with the same amount.
(LAW OF CONSERVATION)
The amount of oxygen and gasoline that can be produced is 5.6 liters
The question above is answered with the law of conversation of mass. This law of conversation of mass states that no form of energy can be destroyed, instead it is changed from one form to another type of form.
In this law, it is expected that you end with the same amount you started with. According to the question above, since the amount that you started with is 5.6 liters then you will end with 5.6 liters also.
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name three layers of our skin
if youre good at chemistry u better help me now please!
Answer:
letter B is the answer
Explanation:
just take a look at the atoms
Answer:
B.) Only elements have one kind of atom.
Explanation:
An element consists of only one type of atom, while a compound consists of two or more types of elements
