Answers
Hope this helps
Answer:
B) A low pH and a high pOH.
Explanation:
Took the quiz.
Related Questions
1. Write the IUPAC names for the following 1.1 1.2 N 1.3 O NO2 x Y ·0 OH 5
Answers
1. The IUPAC name of N is nitrogen.
2. Nitrogen dioxide
3.The IUPAC name of O is oxygen
4.The IUPAC name of OH is hydroxyl.
The IUPAC name of ·0 is a radical. It is commonly found in organic chemistry and plays an important role in many reactions.
IUPAC names for the given compounds are:1.1. N: Nitrogen
The IUPAC name of N is nitrogen.
It is a non-metal and belongs to group 15 in the periodic table. It has an electronic configuration of 1s2 2s2 2p3.1.2. NO2: Nitrogen dioxide
Explanation: NO2 is a chemical compound that is formed by the combination of nitrogen and oxygen. It is a reddish-brown gas that has a pungent odor.
The IUPAC name of NO2 is nitrogen dioxide.1.3. O: Oxygen
Explanation: The IUPAC name of O is oxygen.
It is a non-metal and belongs to group 16 in the periodic table. It has an electronic configuration of 1s2 2s2 2p4.
X: UnknownExplanation: No IUPAC name can be given to an unknown compound as the structure and composition are not known.
Y: Hydroxyl Explanation: The IUPAC name of OH is hydroxyl.
It is a functional group that is composed of an oxygen atom and a hydrogen atom (-OH). It is commonly found in alcohols and phenols. ·0: RadicalExplanation: A radical is a molecule or an ion that contains an unpaired electron.
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Note: The complete question is given below
Provide the IUPAC names for the following compounds:
\(CH_3CH_2CH(CH_3)CH_2CH_2CH_2CH_3\)
C6H5CH(CH3)2
H2NCH2CH2CH2CH2CH2NH2
CH3CH2CH2CH2CH2OH
CH3CH2CH2CHOHCH3
Will mark BRAINLIEST!!
PLEASE ANSWER I HAVE 5 MINS
Answers
Answer:
Explanation:
7A 0.2
7B cork
7C Yes because the lighter it is the more likely it will float
7D Density is one of the fundamental scientific principles of life. It can describe any everyday object. Despite its significance, students often struggle to understand what it really is. Density is a measurement of how much space or volume is packed in an object or substance.
8 property means a characteristic or trait that you can use to describe matter by observation, measurement, or combination.
which action would most likely reduce water pollution ?
Answers
The action that would most likely reduce water pollution is A) initiating efforts to remove trash from the ocean.
Trash and plastic waste in the ocean pose a significant threat to marine life and ecosystems. Initiating efforts to remove trash from the ocean can help mitigate this problem and reduce water pollution. When plastic waste accumulates in oceans, it can break down into microplastics, which are ingested by marine organisms and can enter the food chain, causing harm to both marine life and humans.
By actively removing trash from the ocean, we can prevent it from further degrading and releasing pollutants. This can help protect marine habitats, reduce the risk of entanglement or ingestion by marine animals, and preserve the overall health of ocean ecosystems.
On the other hand, options B, C, and D would likely contribute to increased water pollution:
B) Eliminating laws and regulations on industrial waste would remove important safeguards and oversight, potentially allowing industries to discharge pollutants directly into water bodies, leading to increased water pollution.
C) Promoting the use of oil and gas can lead to oil spills, leakage, and contamination of water sources. This can have severe consequences for aquatic ecosystems and human health.
D) Removing the ban on chlorofluorocarbons (CFCs) would result in the release of these harmful substances, which deplete the ozone layer and can contaminate water sources when disposed of improperly.
In conclusion, initiating efforts to remove trash from the ocean is the most effective action to reduce water pollution, while the other options would likely exacerbate the problem. Therefore, Option A is correct.
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what is the chemical formula of barium phosphate
Answers
Answer:
The chemical formula of barium phosphate is Ba3(PO4)2.
Explanation:
brainlest ples :(
8. Which object has the greatest density? Explain.
Answers
Answer:
The type of stellar object that has the greatest density is a black hole.
Which of these waves has the greatest wavelength? (3 points) Wave shown with 2 wavelengths. Wave shown with 3 wavelengths. Wave shown with 1 wavelength stretch over a short distance. Wavelength shown with 1 wavelength stretched over a long distance.
Answers
The waves that has the greatest wavelength is Wavelength shown with 1 wavelength stretched over a long distance.
Waves explained.A wave could be a disturbance or variety that voyages through a medium or space, carrying vitality without transporting matter. Waves can take different shapes and happen totally different sorts of waves, counting mechanical waves and electromagnetic waves.
Mechanical waves require a medium to propagate, meaning they require a substance like water, discuss, or a strong fabric to transmit the wave. Illustrations of mechanical waves incorporate water waves, sound waves, and seismic waves. In these waves, particles of the medium sway or vibrate in a design, exchanging energy from one molecule to another.
Electromagnetic waves, on the other hand, don't require a medium and can travel through vacuum, such as in space. Electromagnetic waves comprise of electric and attractive areas swaying opposite to each other and to the heading of wave engendering. Illustrations of electromagnetic waves incorporate obvious light, radio waves, microwaves, infrared waves, bright waves, X-rays, and gamma beams.
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1. Cells must let what into the cell
Answers
What two factors determine the point at which a liquid will boil?
A. Volume and mass
B. Pressure and temperature
C. Volume and temperature
D. Pressure and volume
Answers
Answer:
B) Pressure and Temperature
Explanation:
Just did it
If you dissolve 25.0 g of NaNO3 (Mm = 85.0 g) in 155 mL of water, what is the molarity of the solution? (Report your answer to two places past the decimal point)
Answers
Answer:
1.90 M
Explanation:
To find the molarity of the solution, you need to use the molarity equation. This formula looks like this:
Molarity (M) = moles / volume (L)
To use this equation, you need to perform some conversions. You should (1) convert mL to L (by dividing by 1,000), then (2) convert grams NaNO₃ to moles (via molar mass), then (3) plug moles and volume into the molarity equation.
155 mL / 1,000 = 0.155 L
25.0 g NaNO₃ 1 mole
--------------------- x ----------------- = 0.294 moles NaNO₃
85.0 g
Molarity = moles / volume
Molarity = 0.294 moles / 0.155 L
Molarity = 1.8975....
Molarity = 1.90 M
HELP WITH CALVIN CYCLE!
Fill the empty spaces pls!
...the production of a)________ and b)__________ from the light c)__________ cycle.
...to convert d)________ e)__________ into f)___________.
... is the g)_________ for...
I'll be very greatful!
Answers
The Calvin cycle is a metabolic pathway that uses the chemical energy of the production of ATP and NADPH from the light-dependent reactions of photosynthesis. The cycle uses CO2 and Glyceraldehyde-3-phosphate molecules to make one of glucose.
What is the Calvin cycle?The Calvin cycle is an anabolic-type metabolic pathway in which, starting from atmospheric CO2 molecules, glucose synthesis is achieved.
Characteristics of Calvin cycleThe Calvin cycle is powered by ATP and NADPH, which are created by harnessing the energy of photons in light-dependent reactions.It produces a fixed carbon atom in each of its turns, so three turns of the cycle are needed to form a molecule of Glyceraldehyde-3-phosphate (3GP).The cycle uses six molecules of CO2 to obtain one of glucose, attaching them to various receptors in an iterative circuit of chemical reactions that consume energy (ATP).Therefore, we can conclude that the Calvin cycle is a metabolic pathway in which atmospheric CO2 is captured by the plant and, going through different chemical changes, forms glucose.
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(3.6 x 104) / (4 x 10-6)
Answers
Answer:
930 pls mark me branilest
Answer:
11.0117647
Explanation:
Help I think the answer is either A or D.
Which of the following is primarily responsible for water availability in Nevada?
A) Snowpack
B) Hurricanes
C) Monsoons
D) Flash Floods
Answers
Answer:
D
Explanation:
Miss Girl. Snow isn't in Nevada-
what is the ph of a 8.4x10^-6 M H+ solution?
Answers
pH=-log8.4x10^-6
Balance the equation
Ca(s) + H3PO4(aq) ---->Ca3(PO4)2(s) + H2(g)
Answers
6NaCl + Ba3P2 - 3BaCl₂ + 2Na3P
If 17 moles sodium phosphide is produced, how many moles of sodium chloride is needed?
Round to the nearest hundredths.
Answers
6NaCl + Ba3P2 -> 3BaCl₂ + 2Na3P
We can see that for every 2 moles of Na3P, we need 6 moles of NaCl. This means there is a 3:1 molar ratio between NaCl and Na3P.
If 17 moles of Na3P is produced, we can calculate the moles of NaCl needed as follows:
17 moles Na3P * (6 moles NaCl / 2 moles Na3P) = 51 moles NaCl
Therefore, approximately 51 moles of sodium chloride are needed.
HNO3 + NaOH → NaNO3 + H2O
Answers
Answer:
Explanation: what is the question?
This is a neutralisation reaction.
The same mass of 5 different potential fuels was used to heat the same mass of water in a simple calorimeter. The results are shown below. Based on these results, which of these substances would make the best fuel?
Answers
We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.
What is fuel?Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.
The results of the experiment are shown below:
Fuel Mass (g) Heat produced (J) Heat per gram (J/g)
Methanol 1.0 350 350
Ethanol 1.0 250 250
Propane 1.0 200 200
Butane 1.0 150 150
Pentane 1.0 100 100
It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.
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A student planned to make copper sulfate crystals from excess copper oxide and dilute sulfuric acid.
The equation for the reaction is:
CuO(s) + H,SO (aq) -, CuSO (aq) + H20(1)
This is the method used.
1. Add 25 cm° of dilute sulfuric acid to a conical flask.
2. Gently warm the dilute sulfuric acid.
3. Add excess copper oxide to the dilute sulfuric acid.
4. Stir the mixture.
5. Heat to evaporate all the water from the mixture.
Suggest two improvements to the method
Explain why each improvement is needed.
A student plans a method to prepare pure crystals of copper sulfate.
The student's method is:
1. Add one spatula of calcium carbonate to dilute hydrochloric acid in a beaker.
2. When the fizzing stops, heat the solution with a Bunsen burner until all the liquid is gone.
The method contains several errors and does not produce copper sulfate crystals.
Explain the improvements the student should make to the method so that pure crystals of copper sulfate are produced.
Answers
The student's method for preparing pure crystals of copper sulfate contains errors and does not produce the desired outcome.
Use copper oxide instead of calcium carbonate: The student should add copper oxide (CuO) to the hydrochloric acid instead of calcium carbonate. Copper oxide reacts with hydrochloric acid to form copper chloride, which can then be converted to copper sulfate through a subsequent reaction with sulfuric acid.
Add sulfuric acid to the copper chloride solution: After the copper chloride solution is formed, the student should add sulfuric acid to it. This reaction between copper chloride and sulfuric acid will yield copper sulfate and hydrochloric acid. The student should ensure that the correct stoichiometric ratio is maintained to maximize the yield of copper sulfate crystals.
Crystal formation: The student should allow the solution to cool slowly after the reaction with sulfuric acid. This promotes the formation of larger, well-defined copper sulfate crystals.
Filtration and drying: Once the crystals have formed, the student should filter the solution to separate the solid crystals from the remaining liquid. The filtered crystals should then be thoroughly dried to remove any remaining water, resulting in pure copper sulfate crystals.
By following these improvements, the student can obtain pure crystals of copper sulfate.
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in a triple beam balance how do you know when you have to move a weight back to the previous notches or grooves
Answers
Answer:
sdipgjaeri0ae
Explanation:
Can somebody help me if you know what this is
Answers
Convert 2.44 x 1024 H₂O molecules into moles.
Answers
The number of moles 2.44 x 10²⁴ H₂O molecules will be having is 4.05.
Converting between molecules and moles is done by either multiplying by or dividing by Avogadro's number. To go from molecules to moles, divide the number of molecules by 6.02 x 10²³.
Avogadro's number, which is equal to 6.022 × 10²³, is the number of units in one mole of any material (defined as its molecular weight in grams). Depending on the substance and the nature of the reaction, the units could be electrons, atoms, ions, or molecules.
Thus,
No. of molecules = No. of moles × Avogadro no.
from the question we know,
No. of molecules = 2.44 × 10 ²⁴
Avogadro no. = 6.02 × 10²³
i.e. 2.44 × 10²⁴ = No. of moles × 6.02 × 10²³
No. of moles = 2.44 × 10 ²⁴
6.02 × 10²³
No. of moles = 4.05
The number of moles 2.44 x 10²⁴ H₂O molecules will be having is 4.05.
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How many faradays passes through a resistance in a circuit carrying current of 5 A for
1hour?
[1 F =96500c]
Answers
The number of faradays that passes through a resistance in a circuit carrying current of 5 A for 1hour is 0.187 Faraday.
How to calculate no of Faradays?The number of Faradays passing through an electrical circuit can be calculated using the following formula;
Q = It
Where:
Q = quantity of charge in coulombs, CI = current in amperes, At = time in seconds, sAccording to this question, a circuit of electricity is carrying a current of 5A for 1 hour (3600s). The charge can be calculated as follows:
Q = 5 × 3600
Q = 18,000C
Since [1 F = 96500 C]
18,000C will be equivalent to 0.187 Faradays.
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how much heat is required to convert 29g of ice at -4.0c to water vapor at 105
Answers
Answer:
45 degrees at 29 so 105 is lower than 45 and 105 wants to be 32 so 45 can be higher. so then the water vapor will be 35 because 105 is too much of water gallon
Determine the number of moles of the compound and determine the number of moles of each type of atom in 2.12 g of potassium bromide, KBr.
Answers
ANSWER
The number of moles of KBr is 0.0178 moles
The number of moles of K is 0.0178 moles
The number of moles of Br is 0.0178 moles
EXPLANATION
Given that;
The mass of the compound is 2.12 grams
The name of the compound is KBr
Follow the steps below to find the number of moles of the compound
Step 1; Apply the mole formula
\(\text{ mole = }\frac{\text{ mass}}{\text{ molar mass}}\)The molar mass of KBr is 119.002 g/mol
\(\begin{gathered} \text{ mole = }\frac{\text{ 2.12}}{\text{ 119.002}} \\ \text{ mole = 0.0178 moles} \end{gathered}\)The number of moles of KBr is 0.0178 moles
Part B
\(\text{ KBr }\rightarrow\text{ K}^+\text{ + Br}^-\)In the above reaction, 1 mole of KBr is equivalent to 1 mole of K and 1 mole of Br
Recall, the Avogadro's number is 6.022 x 10^23
\(\begin{gathered} \text{ For K atom} \\ \text{ 1 mole of potassium in KBr = 1 }\times\text{ number of moles of KBr} \\ \text{ Mole of potassium = 1 }\times\text{ 0.0178} \\ \text{ Mole of potassium = 0.0178 moles} \end{gathered}\)\(\begin{gathered} \text{ For Br} \\ \text{ mole of Br = 1 }\times\text{ mole of KBr} \\ \text{ Mole of Br = 1 }\times\text{ 0.0178} \\ \text{ Mole of Br = 0.0178 mole} \end{gathered}\)Which compound contains both sigma and pi bonds... HCCl3, H2CO, H2S, or HBr?
Answers
Answer:
H2CO
Explanation:
Becuase it has 2 sigma bonds plus one pi bond and one sigma bond that consitute the double bond between C and O.
Answer:
B. H2CO
Explanation:
The following masses were recorded for 12 different Zambian One kwacha coins (all given in grams): 5.683 5.549 5.548 5.5525.620 5.536 5.539 5.6845.551 5.552 5.554 5.632Report the mean,
Answers
Answer:
The mean of the 12 Zambian One kwacha coins is 5.583
Explanation:
Mean = Sum of the total masses ÷ No of different masses
Mean = 5.683+ 5.549 +5.548 + 5.552 + 5.620 + 5.536 + 5.539 + 5.684 + 5.551 + 5.552 + 5.554 + 5.632 ÷ 2
Mean = 67 ÷ 12
Mean = 5.583
The mean of the different Zambian one kwacha coins is 5.583
The chemical on this list which is not a humectant is: O sorbitol O glycerol O lanolin O methyl O alcohol
Answers
Option (e) is correct. Alcohol is not a humectant because it binds to water and dehydrates the body.
Humectant is a substance which is used to keep things moist. A humectant attracts and retains the moisture in the air nearby via absorption. Sorbitol is a naturally occurring polyol. It is widely used in the food industry as a humectant. Sorbitol is a good humectants. Glycerol is a humectant which is most often derived naturally from vegetable oils. Humectants work to preserve other skincare ingredients and retain moisture by drawing water from the surface of your skin down into the deeper skin layers. Lanolin oil softens the skin and is a good humectant making it ideal for use in you skin care products. Methyl is an extremely effective humectant for both rinse off and leave on products. It is recommended for use in skin care products including lotions and creams.
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Choose the option that would convert mg/L
into molarity (mol/L).
A. Convert mg/L to get g/L then multiply by the volume (L).
B Convert mg/L to g/L then divide by molar
mass (g/mol).
C. Convert mg/L to g/L then divide by the volume (L).
D. Convert mg/L to g/L then divide by the
number of moles (mol).
Answers
The correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.
What is molarity ?
The amount of solute in one mole per liter of solution is known as molarity. For instance, when table salt is dissolved in water, the solute is salt, and the solution is water. 58.44 grams make up one mole of sodium chloride. One molar solution, often known as 1M, is created when 58.44 grams of sodium chloride are dissolved in one liter of water.
What is volume ?
Volume, a three-dimensional quantity, is used to calculate the capacity of a solid shape. It suggests that the volume of a closed figure determines the amount of three-dimensional space it can occupy.
Therefore, the correct option that would convert mg/L into molarity (mol/L)- Convert mg/L to get g/L then multiply by the volume (L). so, option (a) is correct.
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Answer: Not A, its B
Explanation: B
An unknown compound is processed using elemental analysis and found to contain 117.4 g of platinum, 28.91 g of carbon, and 33.71 g of nitrogen. How many moles of platinum are present in the compound? Need help ASAP
Answers
Answer:
1 mole of platinum (Pt).
Explanation:
From the question given above, the following data were obtained:
Platinum (Pt) = 117.4 g
Carbon (C) = 28.91 g
Nitrogen (N) = 33.71 g
Number of mole of platinum =?
To obtain the number of mole of platinum present in the compound, we shall determine the empirical formula for the compound. The empirical formula for the compound can be obtained as follow:
Pt = 117.4 g
C = 28.91 g
N = 33.71 g
Divide by their molar mass
Pt = 117.4 /195 = 0.602
C = 28.91 /12 = 2.409
N = 33.71 /14 = 2.408
Divide by the smallest
Pt = 0.602 /0.602 = 1
C = 2.409 /0.602 = 4
N = 2.408 / 0.602 = 4
Therefore, the empirical formula for the compound is PtC₄N₄ => Pt(CN)₄
From the empirical formula for the compound (i.e Pt(CN)₄) we can see that the compound contains 1 mole of platinum (Pt).
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the
same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to
country music for three hours each day. Plant D does not listen to any music at all.
2. Based on the experiment in the scenario, which visual aid would be most helpful in showing the change in the plants' heights over time?
O A. A timeline
OB. A line graph
OC. A pie chart
D. A bar graph
Answers
Answer:
The type of music each plant listens to.
Explanation:
A variable is any factor or condition whose value is changing in an experiment. A variable can occur in different types or quantity, and three types of variable (independent, dependent, and controlled) can be found in an experiment. In the experiment described above, "the type of music each plant listens to" is the variable. It is an independent variable whose value is changing because it exists in different types and it is the one that the student is observing its effect on the plant’s growth. In this experiment, this variable which differ will also produce different results (or effects).