Answer:
GHG emissions are often measured in carbon dioxide (CO2) equivalent. To convert emissions of a gas into CO2 equivalent, its emissions are multiplied by the gas's Global Warming Potential (GWP).
Calculate the mass, in grams, of 532.0 atoms of cadmium, (1 mol of Cd has a mass of 112.41g)
Binary molecules have
A) multiple (2+) or many elements bonded ionically & covalently.
B) 2 elements ionically bonded.
C) 2 elements covalently bonded.
D) 1 element covalently bonded.
Answer:
C
Explanation:
It is formed as a result of a reaction between two non-metals
A chamber contains equal molar amounts of CO, CO2, N2, and O2. If the total chamber pressure is 3.00 atm, then the partial pressure of CO2 is
Answer:
[tex]P_{CO_2} = 0.75 atm[/tex]
Explanation:
[tex]P_{total} = P_{CO} + P_{CO_2} + P_{N_2} + P_{O_2}[/tex]
Since there's equal molar amounts we can conclude that
[tex]P_{CO_2} = P_{CO} = P_{N_2} = P_{O_2}[/tex]
So,
[tex]P_{total} = 4P_{CO_2}\\3.00 atm = 4P_{CO_2}\\P_{CO_2} = \frac{3.00 atm}{4} = 0.75 atm[/tex]
H₂O Is water but what type?
Answer: H₂O is just water
Explanation:
Answer:
h2o is a water which is a clear, colorless, odorless, tasteless liquid that freezes into ice below 0°C and boils above 100°C.
What is the molar mass of K₂CO₃?
Answer:
138g/mol
Explanation:
K₂CO₃ is also known as potassium carbonate. It has a molar mass of around 138.21 g/mol (138.2055 g/mol to be exact).
A 0.30 M solution of formic acid, HCHO 2, is 2.4% ionized. The ionization constant for formic acid is O a. 1.7 X 10-4 O b.7.2 x 10-3 O C.24 X 10-2 O d. 1.6 X 10-5
Answer:
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state the difference between a conductor and an insulator.
[tex] \\ \\ \\ [/tex]
thankyou ~
[tex]\huge\mathbb\red{HEY \: THERE♡}[/tex]
A conductor allows current to flow easily through it. An Insulator doesn't allow current to flow through it. Electric charge exists on the surface of conductors. Electric charges are absent in insulators.
[tex]\huge\mathbb\orange{HOPE \: IT \: HELPS♤}[/tex]
23) A common reaction that occurs in cells is shown here. In the presence of oxygen, a glucose molecule is combusted to form carbon dioxide and water. If 360 grams of glucose are combusted fully,
calculate how many moles of oxygen gas will be needed to achieve this reaction.
A) 2
B) 8
C)12
D) 18
Answer:
C
Explanation:
add them together and multiply by 2
Bonding with intermolecular forces:
1.) is CH3OH a hydrogen bonding? yes or no?
2.) is CH3OH dipole-dipole interactions? Yes or no?
3.) is CH3OH a london dispersion forces? Yes or no?
Answer:
its Methanol
Explanation:
1). Yes, CH3OH can form bonds (hydrogen bonds) with other CH3OH molecules.
2).Yes
3).Yes, it is a type of interaction created between non polar molecules.
APP
Questions
Show all calculations and proper units to earn full marks
1.
Determine the identity of element X in the following nuclear reaction
atomic mass
a) 23°U → He + x
9202 atomic num
b) x
He + 282Pb
206
23go
c)
244 Cm + He
He
&X + 1H + 2an
96
d)
-
23U + x
BU
→ 2450f + 4 ón
Cf
98
10
257Lr + 5 on
+ 1.B →
el ?x
->
103
Answer:
Explanation:
This question is about nuclear reactions. (a) (i) Define the term unified atomic mass unit. [1]. 1/12th mass of an atom of carbon-12.
The nuclear reaction can be written as: Mg2512+He42→H11+XAZ. where. A is the mass number and; Z is the atomic number of the new nuclide, X.
The mass defect for an isotope was found to be 0.410 amu/atom. Calculate the binding energy in kJ/mol of atoms. (1 J = 1 kg m2/s2): (a) 3.69 x 1010
Consider these reactions:
Reaction 1: H2(g) + Cla (g)
2HC1(g) AH = -184.6 kJ
Reaction 2: 20F2(g)
02(g) + 2 F2(g)
AH = -49.4 kJ
Reaction 3: N2(g) + 202(g)
2N02(g)
AH = +66.4 kJ
Use Reaction 1.
Determine the mass, in grams, of chlorine gas consumed (with excess H-) when
1,342.0 kJ of energy iS released from the system.
Answer: g
511.2 grams of chlorine gas consumed (with excess H-) when
1,342.0 kJ of energy is released from the system.
What is an exothermic reaction?In thermochemistry, an exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative."
Given that 1 mole of chlorine releases -184.6 energy.
Then, we have to find the number of moles of chlorine when 1,342.0 kJ of energy is released from the system.
So, calculating number of moles of chlorine.
Moles = [tex]\frac{-1,342.0 \;kJ}{-184.6\;kJ}[/tex]
Moles = 7.2 mole
Now, calculating number mass of chlorine.
[tex]\rm Moles=\rm\frac{Mass}{Molar \;mass}[/tex]
Mass = 7.2 mole x 71 g/mole
Mass = 511.2 gram
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How much heat does your body lose when 6.35 g of sweat evaporates from your skin at 25 ∘C ? (Assume that the sweat is only water.) The heat of vaporization of water at 25 ∘C is 44.0 kJ/mol .
Answer:
15.52 kj
Explanation:
H2 O mole wt ~ 18 gm
6.35 gm is 6.35 gm /18 gm/mole = .353 moles of H2O
.353 moles * 44 kj/mole =
is Al+CuCl2 a spontaneous reaction?
Answer:
No, it isn't a spontaneous reaction.
Explanation:
A spontaneous reaction is a reaction that requires no outside intervention to start.
All chemical reactions require energy.
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Your mom buys you a helium balloon at the circus. It has a volume of 4.00 liters at STP. What mass of helium (He), expressed in grams, does this balloon contain?
Answer:
2.8 g
Explanation:im not 100%
According to ideal gas equation and STP conditions, mass of helium is 7.04×10[tex]^-2[/tex] g.
What is ideal gas equation?The ideal gas equation is a equation which is applicable in a hypothetical state of an ideal gas.It is a combination of Boyle's law, Charle's law,Avogadro's law and Gay-Lussac's law . It is given as, PV=nRT where R= gas constant whose value is 8.314.The law has several limitations.The law has been proposed by Paul Emile Clapeyron, a physicist and an engineer in 1834.The law is applicable to only ideal gases at all temperature and pressure.
In the given problem, pressure= 1 atmosphere , volume=4 liters, molar mass= 4 g/mole ,R=8.314 , T= 273 K.
mass= PV×molar mass/RT=1×4×4/8.314×273=16/2269.722=7.04×10[tex]^-2[/tex] g.
Thus, the mass of helium gas is 7.04×10[tex]^-2[/tex] g.
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which molecule has zero polarity
Answer:
Carbon dioxide
Explanation:
The oxygen atoms are more electronegative than the carbon atom, so there are two individual dipoles pointing outward from the C atom to each O atom. However, since the dipoles are of equal strength and are oriented this way, they cancel out and the overall molecular polarity of CO 2 is zero.
Answer:
CO2 has zero polarity
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What is the formula of this
inorganic salt hydrate?
Salt hydrates are an important class of PCMs. An inorganic salt hydrate (hydrated salt or hydrate) is an ionic compound in which the ions attract a number of water molecules, which are then trapped inside the crystal lattice. A hydrated salt has the generic formula MxNy. nH2O.
Correctly predict the ionic compound that would form between the atoms rubidium (Rb) and oxygen (O).
Answer:
Rb2O
Explanation:
Rb is a 1+ element and Oxygen is a 2- element. To have a neutral overall charge you must change the molar ratio to have 2 (1+ elements) and 1 (2- element). Together add to 2+(-2)=0. So the overall product is neutral.