Answer:
it is a mixture.
Explanation:
Soda water is a solution of water (H2O) and carbon dioxide (CO2). It has a variable composition and there are not chemical bonds involved.
There is some chemical reaction between CO2 and H2O, producing some carbonic acid H2CO3. This is what gives a slight acidity to soda water.
The correct option for the given question about Mixtures is Option A) Mixture
Why Soda water is a mixture?A mixture of water (H2O) and carbon dioxide is soda water (CO2). There are no chemical bonds present, and it has a variable composition.
It is also called carbonated water as CO2 is first compressed and then get dissolved in it.
The chemical interaction between CO2 and H2O results in the production of H2CO3, a carbonic acid. This is what gives soda water a little acidity.
If the water is somewhat cold in temperature, gas can dissolve in it. The less soluble gas is, the hotter the water is. Additionally, more gas may dissolve in water at greater pressures for the water and gas combination.
Thus we can conclude that Soda water is a homogenous mixture of water and carbon dioxide.
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Calculate the amount of heat gained by the water in cup 2 after adding the hot object(s) to it.
Use the data recorded in parts B and C and the formula Q = mCΔT. The specific heat capacity of water is 4.186 J/(g °C).
(part B and C numbers are included)
Answer:
The amount of heat gained by the water in cup 2 after adding the hot object(s) to it is 2119.121 Joules
Explanation:
As we know
Amount of heat gained
Q = mc (T2-T1)
Here,
mass of water in cup 2 (m) = 79.10 grams
Temperature of water in cup 2 = 16.8 degree Celsius
Specific heat of water (c) = 4.186 J/(g °C)
Final Temperature of water in cup 2 = 23.2 degree Celsius
Substituting the given values, we get -
Q = 79.10 * 4.186 * (23.2 -16.8) = 2119.121 Joules
The amount of heat gained by the water in cup 2 after adding the hot object(s) to it is 2119.121 Joules
HELP ASAP!! 12pts!
What is the molarity of an aqueous solution containing 7.5 moles of
calcium chloride in 12.75 L of solution?
A. 0.59 M
B. 1.7M
C. 7.5M
D. 95.6 M
Answer:
The correct answer is 0.59M
How many moles are in 100 g of K3PO4 ?
Please help me with number 43
Answer:
The reason why atomic mass is usually not a whole number is because it is a weighted average of the mass numbers of isotopes
Explanation:
Thave 7.6 x 1023 particles of neon. How many moles of neon do I have?
Answer:
1.26moles
Explanation:
To get the number of moles (n) in an element, we divide the number of molecules of the element by Avagadro number (6.02 × 10^23)
n = no. of molecules ÷ nA (6.02 × 10^23)
According to this question, number of molecules of Neon (Ne) is 7.6 x 10^23 particles.
n = 7.6 x 10^23 ÷ 6.02 × 10^23
n = 7.6/6.02 × 10^(23-23)
n = 1.26 × 10^0
n = 1.26moles
What is the name of NaC2H3O2?
The chemical name for NaC₂H₃O₂ is sodium acetate.
Sodium acetate is a compound that consists of sodium ions (Na+) and acetate ions. It is also known by its chemical formula CH₃COONa. The compound is commonly found in both solid and aqueous forms.
Sodium acetate is produced by the neutralization reaction between acetic acid and sodium hydroxide. It can also be obtained by reacting sodium carbonate with acetic acid. The resulting product is a white crystalline solid that is highly soluble in water.
One of the notable properties of sodium acetate is its ability to act as a buffer solution, meaning it can resist changes in pH. It is often used in various applications.
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Alanna spots a bird in her back yard. The bird is sitting on a tree. Explain how the outer coverings of the bird and tree are different and have different functions.
Answer:
A bird's feathers are supposed to keep the bird warm and help them fly. A tree's bark is supposed to protect the inside of the tree.
Explanation:
If a tree has no bark, the inside of it is exposed. If a bird has no feathers, the bird is cold and cant fly.
Can someone help me
Answer:
Its refraction
Explanation:
becuase refraction is the change in direction of a wave passing from one medium to another, where the straw appears to be split apart because of the waters direction.
When water droplets in a cloud combine, become too heavy, and fall to the ground as rain, snow, sleet, or hail, we are experiencing _____.
Answer:
precipitation
Explanation:
Answer:
precipitation
Explanation:
Any event where water (in any form- frozen or liquid or any other form) falls from sky it is called precipitation.
Ionic bond is formed between atoms of ____and ______
A. metals, non-metals
B. metals, metals
C. non-metals, non-metals
Answer:
A. metals and non-metals
Answer:
Metals-Non-Metals
Explanation:
You see, that is the answer because when the asnwer.
[tex]\geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq \geq[/tex]
.60 L .of 95 M solution of NaCl is allowed to evaporate until it has a volume of .25L What is the concentration of the new solution?
Answer:
2.28 M
Explanation:
Using the formula as follows;
C1V1 = C2V2
Where;
C1 = initial concentration (M)
C2 = final concentration (M)
V1 = initial volume (L)
V2 = final volume (L)
According to the information given in this question;
C1 = 0.95M
C2 = ?
V1 = 0.60L
V2 = 0.25L
Using C1V1 = C2V2
0.95 × 0.60 = C2 × 0.25
0.57 = 0.25 C2
C2 = 0.57 ÷ 0.25
C2 = 2.28 M
What type of circuit is shown in the diagram below?
Answer:
Its a simple SERIES circuit
Explanation:
If I have 30 liters of gas held at a pressure of 3.4 atm and a temperature of 225 K, how many moles of gas do I have? 5.52 mol
Answer:
234 atm
Explanation:
Which equation is balanced?
CH4 + O2 ⟶ CO2 + H2O
Mg + 2HCl ⟶ MgCl2 + H2
Mg + P4 ⟶ Mg3P2
Answer:
A I think
Explanation:
im not sure so do with that what you will
Oxygen has 6 valence electrons. how many hydrogen atoms (who have 1 valence electrons) can bond with it? remember the octet rule.
Answer:
two hydrogen can bonded with oxygen to form H2O
(52.6 cm)(1.214cm) what is the product expressed to the correct number of significant figures?
I need help on deciding which one i should get
Answer:
I would say the purple one!
Explanation:
What is the volume occupied by 0.17 grams of gaseous H2S at 27◦C and 380 torr?
Answer:
0.25 liter
Explanation:
Trust
Can someone help with question 16?
ASAP
1. carbon lies in the 2nd period where silicon in the third period.
2. carbon is a non metal whereas silicon is a metalloid.
3. there are only 3 isotopes of carbon and 23 isotopes of silicon
4. size of silicon atom is larger
5. silicon is heavier than carbon.
Only producers are able to capture energy from the sun and the matter from the environment to make food.How does energy that come from the sun get to every other organism?How does matter from the environment enter every other organism?
Answer:
Explanation:
Plants get energy from sunlight to produce carbohydrates. When a consumer such as herbivore consume plants, he gets energy and when a canivore or omnivore consume the primary consumer, energy is also transfered to them and this is called food chain.
Matter from the environment which include fallen leaves or trees will decompose after a while in the ground when decomposers begin to act on it and it will eventually give them energy. Decomposer help break down organic matter such as leaves,dead animals and get little amount of of energy in the energy flow pyramid
What is the molarity of a solution prepared by dissolving 10.0 grams of NaOH in enough water to make a solution with a total volume of 2.40 liters?
O0.104 M NaOH
O0.201 M NaOH
O0.361 M NaOH
O0.412 M NaOH
Solution :
Molecular mass of NaOH is 23 g/mol .
So, number of moles of NaOH is given by :
[tex]n = \dfrac{10}{40}\ mole[/tex]
Now, we know molarity is given by :
[tex]Molarity = \dfrac{Number \ of \ moles\ of \ salute}{Volume ( in \ Liter ) }[/tex]
[tex]M = \dfrac{10}{40\times 2.4} \ M\\\\M = 0.104 \ M[/tex]
Hence, this is the required solution.
Answer: The answer is A O0.104 M NaOH
Explanation:
What does this image represent?
A) A methyl group present in fatty acids
B) A ketone group present in fat molecules
C) An aldehyde group present in monosaccharides molecules
D) An acid group present in lipids
Answer:
D) An acid group present in lipids
Which compound in the following reaction serves as the Bronsted-Lowry acid?
NaOH + HCl → NaCl + H2O
O NaOH, because it is a proton donor
O HCI, because it is a proton donor
O NaOH, because it is a proton acceptor
HCI, because it is a proton acceptor
Two ways the atmosphere can be divided
Answer:
The atmosphere can be divided into layers based on its temperature, as shown in the figure below. These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere.
A 996.9 g sample of ethanol undergoes a temperature change of -70.98 °C while releasing 62.9
calories of heat. What is the specific heat capacity of ethanol?
Answer:
[tex]c=3.71\ J/g^{\circ} C[/tex]
Explanation:
Given that,
Mass of sample, m = 996.9 g
The change in temperature of the sample, [tex]\Delta T=-70.98^{\circ}C[/tex]
Heat produced, Q = 62.9 calories = 263173.6 J
The heat released by a sample due to change in temperature is given by :
[tex]Q=mc\Delta T[/tex]
Where
c is the specific heat capacity
So,
[tex]c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{263173.6}{996.9\times 70.98}\\\\c=3.71\ J/g^{\circ} C[/tex]
So, the specific heat of ethanol is equal to [tex]3.71\ J/g^{\circ} C[/tex].
Explain the process of fermentation.
Answer:
Fermentation, chemical process by which molecules such as glucose are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the 17th century.
Explanation:
looked it up-
Answer:
like babies or milk and cheese?
Explanation:
the distance between two points on a map is 0.04 kilometers what is the distance in meters
A sample of 10.0 grams of carbon dioxide gas is contained in a tank with a volume of 6.0 L so that the pressure inside the tank is 1.00 atm. What is the
temperature of the gas sample in °C?
Given: R = 0.0821 L.atm/molek
O 280°C
O 322°C
O 49°C
O 595°C
Answer:
49°C
Explanation:
Let's apply the Ideal Gases Law in order to solve this question:
P . V = n . R . T
Pressure = 1 atm
Volume = 6 L
n = number of moles → 10 g. 1mol /44g = 0.227 moles
R = Ideal Gases Constant
We replace data: 1 atm . 6 L = 0.227 mol . 0.082 . T
6 atm.L / ( 0.227 mol . 0.082) = T
T° = 322 K
We convert T° from K to °C → 322 K - 273 = 49°C
What is the pOH of a 3.0 x10-3 M NaOH solution?
pOH =
Answer:
2.5
Explanation:
From the question given above, the following data were obtained:
Molarity of NaOH = 3.0x10¯³ M
pOH =?
Next, we shall determine the concentration of the hydroxide ion in the solution. This can be obtained as follow:
NaOH (aq) —> Na⁺ (aq) + OH¯ (aq)
From the balanced equation above,
1 mole of NaOH produced 1 mole of OH¯.
Therefore, 3.0x10¯³ M NaOH will also produce 3.0x10¯³ M OH¯.
Finally, we shall determine the pOH of the solution. This can be obtained as illustrated below:
Concentration of hydroxide ion [OH¯] = 3.0x10¯³ M
pOH =?
pOH = – Log [OH¯]
pOH = – Log 3.0x10¯³
pOH = 2.5
Thus, the pOH of the solution is 2.5
In steps 3 and 4 of the citric acid cycle, successive oxidations produce ________ as a waste product and the four-carbon carrier ________. In steps 3 and 4 of the citric acid cycle, successive oxidations produce ________ as a waste product and the four-carbon carrier ________. CO2; malate CO2; succinyl-SCoA ADP; oxaloacetate ADP; succinyl-SCoA CO2; oxaloacetate
Answer:
CO2; succinyl-SCoA
Explanation:
Citric acid cycle, also called Krebs cycle is the second stage of aerobic cellular respiration, which occurs in the mitochondrion. The kreb's cycle is made up of 7 distinct steps, with each involving series of enzymatic reactions.
According to this question, step 3 and 4 of the citric acid cycle involves an oxidation and decarboxylation reaction to produce 2 molecules of carbon dioxide (CO2) and a 4-carbon compound called succinyl group. A coenzyme A binds to the succinyl group to form succinyl-SCoA.
