Answer:
The one 100 meters below the surface of the water.
Explanation:
As you go deeper into a body of water, there is more water above, and therefore a greater weight pushing you down.
ILL BRAINLIST ITS URGENTTT!!!!
Investigate the rate of success that CCS projects have shown and predict it’s viability as a method of reducing carbon emissions to achieve our target of zero emissions by 2050.
Answer:
With the European Climate Law, the EU committing to carbon neutrality by 2050. What does that mean in practice?
Climate change is already affecting the entire world, with extreme weather conditions such as drought, heat waves, heavy rain, floods and landslides becoming more frequent, including in Europe. Other consequences of the rapidly changing climate include rising sea levels, ocean acidification and loss of biodiversity.
In order to limit global warming to 1.5 degrees Celsius – a threshold the Intergovernmental Panel for Climate Change (IPCC) suggests is safe – carbon neutrality by mid-21st century is essential. This target is also laid down in the Paris agreement signed by 195 countries, including the EU.
In December 2019, the European Commission presented the European Green Deal, its flagship plan that aims to make Europe climate neutral by 2050. This target will be reached through the European Climate Law that sets climate neutrality into binding EU legislation.
Explanation:
ok bet i got u
Step 5: place the remaining hydroxy and hydrogen substituents. Review the previous steps to determine the position of the substituents on carbons 1 and 5
Based on the functional groups present in organic compounds, the compound formed from adding hydroxy and hydrogen substituents to carbon atoms is an alcohol.
What are alcohols?Alcohols are organic compounds whose functional group is the hydroxy radical.
The simplest alcohol is methanol whose molecular formula is CH3OH.
The hydroxy group in alcohols are responsible for their properties such as:
solubility- alcohols are soluble in waterhigh boiling points polarityTherefore, the compound formed from adding hydroxy and hydrogen substituents to carbon atoms is an alcohol.
A sample of nitrogen occupies 10.0 liters at 25oC , what would be the new volume at 20oC?
Apply Charles law
[tex]\\ \bf\bull\rightarrowtail V1T2=V_2T1[/tex]
[tex]\\ \bf\bull\rightarrowtail 10(20)=25V_2[/tex]
[tex]\\ \bf\bull\rightarrowtail 200=25V_2[/tex]
[tex]\\ \bf\bull\rightarrowtail V_2=8L[/tex]
Answer:
hope it's helpful to you
How can solar flares affect the oceans?
Explanation:
it can damage satellites cuase there in space and are not protected by earth
What term describes a solution in which the dissolved solute is in equilibrium with the undissolved solute?
Saturated solution refer to a solution in which the dissolved solute is in equilibrium with the undissolved solute.
What is a saturated solution?A saturated solution is a chemical solution that contain maximum amount of a solute which is dissolved in the solvent. The addition of anotheg solute will not dissolve in a saturated solution. The amount of solute that can be dissolved in a solvent to form a saturated solution depends on a variety of factors.
Therefore, Saturated solution refer to a solution in which the dissolved solute is in equilibrium with the undissolved solute
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The term that describes a solution in which the dissolved solute is in equilibrium with the undissolved solute is saturated solution.
What is a saturated solution?A saturated solution is one in which there is so much solute that it would not dissolve if there was anymore.
When a saturated solution comes into contact with more solute, the extra solute does not dissolve or deposit.
Thus, the term that describes a solution in which the dissolved solute is in equilibrium with the undissolved solute is saturated solution.
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I have 5 questions that need help to answer 1) What are covalent bonds and how do they form ? 2) How do you know which elements and how many of each are in a compound ?
3) How can you find how many valence electrons an atom has ?
4) How many valence electrons do atoms need to be happy? Which elements are the exceptions?
Answer:
covalent bond- a chemical bond that is the sharing of electron pairs between atoms
Can someone please predict the products for these two? Also explain to me how you predicted it, thank you.
1) C₂H₂ + O₂ -->
2) C₂H₁₂ + O₂ -->
What is meant by the phrase “a consistent method of measurement"?
A. Things are measured the same way each time.
B. All measurements are in Sl units.
C. Every measurement is exactly the same numerical value.
D. The same person performs all measurements.
Answer:
A. Things are measured the same way each time.
Explanation:
An atom moving at its root mean square velocity at 100. °c has a wavelength of. Which atom is it? assume that the atom is the most abundant isotope of an element.
The atom that moves at its rms velocity at 100°C with a wavelength of 2.31 * 10 m is : SULPHUR ( s )
Determine the molar mass of the atomTo determine the atom we will have to determine the molar mass of the atom
Applying De Broglie equation
λ = h / mv
Vrms = [tex]\sqrt{\frac{3RT}{M} }[/tex] ---- ( 1 )
Where : λ = 2.31 * 10⁻¹¹, R = 8.314 J / k.mol, T = 373 K, h = 6.626 * 10⁻³⁴ J.s
From equation ( 1 )
M = ( h² Ua ) / 3RT*λ² --- ( 2 )
where : Ua ( mass of an atom ) = 6.022 * 10²³, h = 6.626 * 10⁻³⁴, R = 8.314 J / k.mol, λ = 2.31 * 10⁻¹¹, T = 373 K
Insert values into equation ( 2 )
M ( molar mass ) = 32 g/mol
Sulphur has a molar mass of 32 g/mol therefore the atom is sulphur.
Hence we can conclude that The atom that moves at its rms velocity at 100°C with a wavelength of 2.31 * 10 m is : SULPHUR ( s ).
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Determine the empirical formula of a compound containing 48. 38 grams of carbon, 6. 74 grams of hydrogen, and 53. 5 grams of oxygen.
In an experiment, the molar mass of the compound was determined to be 180. 15 g/mol. What is the molecular formula of the compound?
For both questions, show your work or explain how you determined the formulas by giving specific values used in calculations
Answer:
I recently answered this question. The response I submitted is included below. I beleive my answer should be correct.
Explanation:
Question 1:
C: 48.38g(1mol/12g) = 4.0317
H: 8.12g(1mol/1.01g) = 8.12
O: 53.5g(1mol/16g) = 3.34375
Divide by the smallest amount (3.34375)
C = 4.0317/3.34375 = 1.206 = 1
H = 8.12/3.34375 = 2.42 = 2
O = 3.34375/3.34375 = 1
Empirical formula = CH2O
Question 2:
Molecular formula = n(empirical formula)
n = molar mass (compound)/molar mass (empirical)
Empirical formula: CH2O
Molar mass of CH2O = 12 + 2x1 + 16 = 30 g/mol
Molar mass of compound: 180.15 g/mol
[tex]n=\frac{180.15g/mol}{30g/mol}= 6[/tex]
Molecular formula = C6H12O6
Complete and balance the equation for the reaction of sodium with water.
Na+_H2O+ H2
2Na + 2H2O → 2NaOH + H2
The balanced equation
Calculate the molarity of each of the following solutions. Use the periodic table if necessary. A salt solution with a volume of 250 mL that contains 0. 70 mol NaCl. M.
The molarity of the NaCl in the 250 ml slat solution is 2.8M.
What is molarity?
The molarity of a solution is defined as the concentration of a solute per unit volume of the solution.
Given, the volume of the solution is 250 ml converted into l 0.25
The number of moles of NaCl is 0.70.
By the formula of molarity
[tex]M = \dfrac{n}{V}\\\\\\M = \dfrac{0.70}{0.25} = 2.8 M[/tex]
Thus, the molarity is 2.8 M.
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Why is carbon dioxide called a gas and not vapour?
Explanation:
CO2 is called as gas because it exist in single thermodynamics state i.e CO exist in gases state only at room temperature.
Write a full note on Infectious diseases. please I need it now and no links please thanks
Answer:
diseases where microbes are the immediate cause are called infectious diseases. Infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. Many organisms live in and on our bodies. They're normally harmless or even helpful.
_______ oxides are oxides of certain non metals
acidic in naturenature
Generally, Oxides of non-metals are acidic in nature. When non-metals are reacted with water it forms an acidic solution. The common oxides of Sulphur, Selenium, and Bromine are strongly acidic.
As consumption of a synthetic material increases, the associated negative impacts to Earth required to produce the material increase.
Is this a true or false question? If so, then this would be a true statement. Synthetic materials are made in factories, and the usage of factories increases the risks of harmful gases and chemicals that negatively impacts Earth.
It is generally true that as consumption of a synthetic material increases, the associated negative impacts to Earth needed to produce the material also increase.
Why the given sentence is true?This is because the production of synthetic materials often requires the extraction and processing of non-renewable resources, such as petroleum, which can have a range of negative environmental impacts, including habitat destruction, air and water pollution, and greenhouse gas emissions.
Additionally, the disposal of synthetic materials can also lead to environmental problems, such as the accumulation of non-biodegradable waste in landfills and oceans.
However, it is important to note that not all synthetic materials have the same environmental impacts, and some materials may be more sustainable than others depending on their production methods and intended use. Hence, the given sentence is true.
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Your question is incomplete, most probably the full question is this:
True or false. As consumption of a synthetic material increases, the associated negative impacts to Earth required to produce the material increase.
Why might a company decide against using hydroelectric energy as an alternative energy resource?
Because gathering it leaves a negative impact on natural habitats.
Why does knowing types of mixtures help you to identify a substance?
Answer:
This is my own explanation:
Explanation:
It is important to know the mixtures you input together because you may determine the type of substance you produced from different elements and several combinations of matter. This assists in identifying your specific substance.
What element is commonly used to reduce iron oxide?
Answer:
The element that is commonly used to reduce iron oxide would be carbon.
Explanation:
:)
Iron oxide is reduced to a lower oxide or metal by gaseous carbon monoxide or solid carbon.
What is Reduction?Reduction is defined as the chemical reaction which involves addition of hydrogen or removal of oxygen or gain of electrons.
For example,
2Na + H2 → 2NaH (addition of hydrogen)
CuO + H2 → Cu + H2O(removal of oxygen)
Fe3+ + e- → Fe2+ (gain of electron)
Above example of reduction reaction is when oxygen reacts with iron to form rust. In this reaction oxygen is reduced because it accepts electrons from iron, which is oxidized.
Thus, Iron oxide is reduced to a lower oxide or metal by gaseous carbon monoxide or solid carbon.
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A gas has a mass of 3.82 g and occupies a volume of 0.854 L. The temperature in the laboratory is 302 K, and the air pressure is 1.04 atm. calculate the molar mass of the gas.
1) 93.4 g/ mol
2) 72.3 g/ mol
3) 107 g/ mol
4) 35.8 g/mol
The molar mass of the gas that has a mass of 3.82 g and occupies a volume of 0.854 L is 106.66g/mol.
How to calculate molar mass?The molar mass of a substance can be calculated by dividing the mass of the substance by its number of moles.
However, the number of moles of the gas in this question needs to be calculated first using the ideal gas law equation:
PV = nRT
Where;
P = pressureV = volumen = number of molesT = temperatureR = gas law constant1.04 × 0.854 = n × 0.0821 × 302
0.888 = 24.79n
n = 0.888/24.79
n = 0.036mol
Molar mass of gas = 3.82g/0.036mol
Molar mass = 106.66g/mol
Therefore, the molar mass of the gas that has a mass of 3.82 g and occupies a volume of 0.854 L is 106.66g/mol.
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5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat Cu? (Specific heat capacity of Cu is 0.38 J/g °C)
114°
Explanation:
ΔE = mcΔT
ΔE = 5(0.38)(80 - 20)
ΔE = 1.9(60)
ΔE = 114°
how many inches are there in 62.8 cm?
Answer:
24.7
Explanation:
Answer: ~24.72in
Explanation:
1 inch = 2.54 centimeters
divide 62.8cm by 2.54 which gives us approximately 24.72in.
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How many grams of bicarbonate will produce 40. Ml of co2 gas?
The reaction equation must first be put down and the stiochiometry is used to calculate the mass of the bicarbonate produced as 0.11 g.
What is a reaction?A reaction refers to the transformation of reactants into products. We have the equation of this reaction as;
CO2 + H2O ---->H2CO3
If 1 mole of CO2 gas occupies 22400mL
x moles of CO2 occupies 40 mL
x = 0.0018 moles
If 1 mole of CO2 yields 1 mole of bicarbonate
0.0018 moles yields 0.0018 moles of bicarbonate
Mass of bicarbonate = 0.0018 moles * 61 g/mol = 0.11 g
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The sum of the kinetic energies and potential energies of all of the molecules
in a substance is called the ___ energy of the substance.
Answer:
The sum of the kinetic energies and potential energies of all of the molecules in a substance is called the thermal energy of the substance.
Which staternent about all the noble gases is correct?
A The number of protons in the atoms equals the number of neutrons.
B Their atoms each have a stable arrangement of electrons.
C Their atoms each have eight electrons in their outer shell
D They exist as molecules containing two atoms.
Answer:
B
Explanation:
The electrons in all noble gases are filled with electrons and don't need to involve in a reaction to gain or loss
The answer A is wrong because not all of them has same number of protons equal the neutrons
Answer C is wrong because we can see helium with 2 electrons in outer shell
and Answer D is wrong as we say above each atom doesn't need to react with another to be stable
How many moles of hydrochloric acid are in 500. Ml of a 0. 300 m solution?.
Answer:
300
Explanation:
because it's not highly concentrated
How does acid react to water mixed with clorine eyedrops
Answer: Chlorine gas is produced when sulfuric acid is mixed with chlorine bleach.
Explanation: This reaction is a function of the change in pH of the solution from alkaline to acidic combined with the strong oxidant properties of hypochlorous acid.
Make sure to reword this in your words!!!what causes the outer layer of star to expand?
Answer/Explanation:
Stars spend the majority of their lifespan medling hydrogen nuclei together to form helium. When the hydrogen that in the core of the star begins to run out, the star will start using hydrogen away from its core and this is what causes the star's outer layer to expand and slowly cool down.
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-No one
What impact will sea level rise have on farming and water supply?
I
Even a small increase can have devastating effects on coastal habitats farther inland, it can cause destructive erosion, wetland flooding, aquifer and agricultural soil contamination with salt, and lost habitat for fish, birds, and plants.
Explanation:
I hope this helps
Balance the chemical equation
Balanced equation: 2 HI --> I2 + H2
Explanation:
HI-
H = 1 x 2 = 2
I = 1 x 2 = 2
H2-
H = 2
I = 2