The solubility of sugar in water at 20 degree Celsius is approximately 180 g/L.
What is solubility?Solubility is the ability of a substance to dissolve in a liquid or other solvent. This is an important property of chemical compounds because it affects the availability of a substance in various forms, such as in a solution, suspension, or solid. For example, sugar is more soluble in hot water than in cold water, meaning that more sugar can dissolve in hot water than in cold water. Solubility can be affected by the temperature, pressure, and the chemical and physical properties of the substances involved. In general, solubility increases as temperature increases, and decreases as pressure increases. Additionally, solubility may be affected by the pH of the solution or the presence of other compounds.
Therefore:
21 g: Soluble - 21 g of sugar is soluble in water at this temperature.
204 g: Insoluble - 204 g of sugar is more than the solubility limit at this temperature, so it is insoluble.
37 g: Soluble - 37 g of sugar is soluble in water at this temperature.
164 g: Insoluble - 164 g of sugar is more than the solubility limit at this temperature, so it is insoluble.
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Answer:
Explanation:
Observation 1 is correct because the crystals are just turning into water. They can be frozen back.
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The fact that animals are the only kingdom that has muscle tissue demonstrates a contrast between which of the
following?
animals and humans
animals and protozoans
animals and other living things
animals and insects
Answer:
animals and other living things
Explanation:
All living organisms have been classified and grouped into a hierarchical system of classification. Kingdom is the highest level in this system comprising of 6 other levels. However, there are different kingdoms that harbors different organisms. The kingdoms are: animalia, plantae, protista, monera, fungi etc.
However, among other kingdom of organisms, organisms in the Kingdom Animalia are the only ones that possesses muscle tissues etc. This shows a contrast between animals and other living things.
If a sample of oxygen gas has a pressure of 810 torr at 298 K, what will be its
pressure if its temperature is raised to 330K?
Answer:
The pressure is = 897 torr
Explanation:
TRUE or FALSE: Traits that an organism has can be influenced by factors in the environment.
Answer:
True
Explanation:
Hope this helps
Overflow during a heavy rainstorm from a wastewater treatment plant would result in
A. polluted runoff into nearby ponds.
B. flooding in the local aquifer.
C. weakened housing foundations.
D. over-treated drinking water.
Answer: a.polluted runoff into nearby ponds
Explanation:
Answer:
Aa
Explanation:
H2CO: → H2O + CO2
Answer the following question about the equation above.
1. How many atoms of Hydrogen are in the reactant?
2. How many atoms of Carbon are in the reactant?
3. How many atoms of Oxygen are in the reactant?
4. How many atoms of Hydrogen are in the product?
5. How many atoms of Oxygen are in the product?
6. How many atoms of Carbon are in the product?
7. Does the number of atoms of each element on the reactant side match that of the product side?
Answer:
1) 2
2) 1
3)1
4) 2
5)3
6)1
7)yes except Oxygen
state ay three ways of increasing solubility
4. Calculate the heat energy needed to heat 25.0 g of water from 13.0°C to 18.0°C. Use chart above for specific heat of water. Use units and show all work.
Answer: I go search some information
Explanation:I come back with a answer
6th grade science Major grade plz help ASAP
Answer: An organism is part of a community
What does this image represent?
A. Linear molecule with one domain
B. Linear molecule with two domains
C. Tetrahedral molecule with four domains
D. Trigonal planar molecule with three domains
Answer: A.
Explanation:
Answer:
A. Linear molecule with one domain.
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Explanation:
Based on this diagram, which type of stars would belong to spectral class M and have the
highest luminosity?
Answer:J , the answer is super giants
no.of elements in KMnO4
Answer:
3 three
Explanation:
potassium (K), manganese (Mn), and oxygen (O).
Answer:
3 different elements (7 in total as there are 4 oxygens (The answer is either one of these))
Explanation:
in what order were the sun and earth created according to both the younger theory and the older theory
answer: the earth orbits around the sun for 365 while getting older to the young theory.
Answer:
The older theory was that the sun (and other planets) revolved around earth and the new theory is that the earth (and other planets) revolved around the sun.
Explanation:
what happens when a species is moved from its natural environment?
Answer:
What may happen is everything where they used to live may change. Like The food cycle or the ecosystem. Here's a example. We took wolves from their natural environment and there was a big impact on what they did. Elks is what they ate all the time and kept their population low enough to where the environment can thrive but when they took the wolves the elks started to eat the berries in which Grizzly Bears need to feast on for their hibernation and they ate shrubs and other plant like stuff to which stuff couldn't grow anymore. The Elk population when from 5000 to 30000 from when they took the wolves that day. Another thing is how beavers build dams to keep water from going to certain places which help humans out too, but all the time the Elks would drink water and leave waste inside the water to where fish and other species inside the water started dying out. So beavers couldn't build. So this is my example of what may happen if a species is moved from their natural ground cause they could also ruin a food chain somewhere else.
Explanation:
Hope this helps
which star is mostly like Earth's sun? A)Blue Giant B) Red Giant C) Main sequence D) White Dwarf?
Answer:
C) main sequence
Explanation:
Currently, the Sun is a main sequence star. In roughly 5 billion years from now, the Sun will transition into a red giant.
How to determine the relative rates of reactant disappearance and product appearance using reaction stoichiometry
Answer:
For example, the relative rate of a reaction at 20 seconds will be 1/20 or 0.05 s -1, while the average rate of reaction over the first 20 seconds will be the change in mass over that period, divided by the change in time.
Explanation:
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Magnetic poles are called domains.
True
False
Answer:
false
Explanation:
the magnetic domains in the area around a magnet where the force acts.
number of elments in hcooh
What volume, in liters, of 0.500 M HNO3 is necessary to react with 25.0 mL of 0.0500 M Ca(OH)2 solution to the endpoint? HNO3 + Ca(OH)2. --> Ca(NO3)2 + H2O
Answer:
0.00500L are necessaries
Explanation:
Based on the balanced chemical reaction:
2HNO3 + Ca(OH)2. --> Ca(NO3)2 + 2H2O
2 moles of nitric acid react with 1 mole of calcium hydroxide
To solve this question we must find the moles of Ca(OH)2. Then, convert this moles to moles of HNO3 using the chemical reaction and to liters:
Moles Ca(OH)2:
0.025L * (0.0500mol / L) = 0.00125 moles Ca(OH)2
Moles HNO3:
0.00125 moles Ca(OH)2 * (2 moles HNO3 / 1mol Ca(OH)2) = 0.0025 moles HNO3
Liters HNO3:
0.0025 moles HNO3 * (1L / 0.500moles) = 0.00500L are necessaries
How many moles are in 8.3 x 10^23 molecules of H2O?
Answer:You multiply avogadro's number to what you were given.
8.30x10^23 * 6. 0221409x10^23
=1.357*10^25
Explanation:
A scientist is designing a device that will kill harmful cells in the human body using high-energy waves. Which type of wave would be most effective
А
X-rays would be the best choice because they have a long wavelength and a low frequency
accomplishing this goal?
B
Radio waves would be the best choice because they have a long wavelength and a low frequency
Gamma rays would be the best choice because they have a short wavelength and a high frequency
D
Infrared waves would be the best choice because they have a short wavelength and a high frequency
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O
BH
Answer:
gamma rays
Explanation:
gamma Ray's have the highest frequency
A material in which electrons are able to move easily or freely is a(n)
A none of these
В electric field
C insulator
D conductor
Answer:b
Explanation:
Which statement describes sunspots? A.Sunspots have a bright white appearance. B.Sunspots occur in the radiative zone of the sun. C.Sunspots occur in areas of extremely low magnetic fields. D.Sunspots have lower temperatures than their surroundings.
Answer:
The statements that describe sunspots is;
D. Sunspots have lower temperatures than their surroundings
Explanation:
Sunspots is a phenomenon that involves temporary appearance of dark areas on the Sun's surface, which are regions of concentrated magnetic field flux which inhibit heat transfer by convection and are therefore cooler than other parts of the Sun. Due to the presence of magnetic field magnetic
Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas. They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection. Opposite magnetic polarity sunspots usually appear as a pair.
Therefore, the statement that best describe sunspots is that a sunspot is a region of reduced temperature compared to surrounding areas on the Sun's surface.
why is pluto classified as a dwarf planet?
Answer:
pluto is considered a dwarf planet because it did not meet the three criteria the IAU uses to define a full sized planet
Explanation:
in an electroplating apparatus, where does the oxidation reaction occur?
a. on the surface of the battery
b. on the surface of the cathode
c. in the solution
d. on the surface of the anode
Answer:
I believe it’s on the surface of the anode!
Explanation:
Electroplating apparatuses are the devices used in the electroplating of metals. The oxidation reaction occurs on the anode of the plate. Thus, option d is correct.
What is oxidation?Oxidation is the process of the redox reaction in which the atoms or the ions lose their electron to the positive anode. The negative of the ionic species gets attracted to the positive of the anode.
The negative ions act as charges deposited on the positively charged anode and conduct electric current. The oxidation of the species will always occur at the anode of the electrochemical cell.
Therefore, option d. oxidation occurs at the surface of the anode.
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What is the mass of an object with a net force of 10 N accelerating at 2 m/s^2??
Answer:
5kg
Explanation:
Force = Mass x acceleration
F = ma
m = F/a = 10N/2m/s^2
m = 10/2 = 5kg
The standard unit for mass = Kilogram
How does the rate of a chemical reaction change if the concentration of both reactants increases 4 times?
2NO + O2 → 2 NO2
Answer: The rate will increase 32 times if the concentration of both reactants increases 4 times
Explanation:
Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.
For the reaction : [tex]2NO+O_2\rightarrow 2NO_2[/tex] [tex]rate=k[NO]^2[O_2]^1[/tex]
k= rate constant
order with respect to [tex]NO_2[/tex] = 2
order with respect to [tex]O_2[/tex] = 1
Thus on increasing the concentration of reactants 4 times :
[tex]rate'=k[4\times NO]^2[4\times O_2]^1[/tex]
[tex]rate'=k\times 8\times 4\times [NO]^2\times [O_2]^1[/tex]
[tex]rate'=32\times rate[/tex]
Thus rate will increase 32 times if the concentration of both reactants increases 4 times
During
the
school
year,
1.3
x
102
students
participate
in
football,
and
.5
x
102
participate
in
soccer.
What
is
the
total
number
of
students
that
participate
in
football
If you have 12 atoms of hydrogen before a chemical reaction, how many atoms of hydrogen will be present after the chemical reaction?
Answer:
it is 12
Explanation:
because matter can put be created or destroyed
Graduated cylinder‘s