Answer:
Abiotic
Explanation:
Its because it includes water, sunlight, tempature and soil
state the special characteristics of maxwell-boltzman statistics
Answer:
I need more info
Explanation:
What is the correct configuration of phosphorus ( P) ?
Answer:
[Ne] 3s² 3p³
Hope it helps
How many of the mentos would you use to have the biggest chemical reaction?
What does the strong nuclear force do?
Answer:
The strong force binds quarks together in clusters to make more-familiar subatomic particles, such as protons and neutrons. It also holds together the atomic nucleus and underlies interactions between all particles containing quarks.
how would the function of the galvanic cell be affected if the salt bridge contained a very diluted solution of NaNo3? explain
Answer:
The salt bridge serves to complete the electrical circuit in the galvanic cell. It is pertinent that the salt bridge ions are in high concentrations as this allows electron mobility and keeps each half cell electronically neutral. The diluted salt bridge wuld cause a buildup of positive charge in the anode and negative charge in the cathode and the electrode half reactions which either reduce or oxidise species would halt. Causing the cell to stop producing electronic energy, impedeing the proper functioning of the galvanic cell.
What is the number of moles of glucose (C,H,O,) in 0.500
of a 0.40
M
solution?
Answer:
0.500
Explanation:
We presume your "centroid ratio theorem" tells you that AG = 2·DG, so ...
(x+7) = 2(x -15)
x + 7 = 2x - 30 . . . . eliminate parentheses
37 = x . . . . . . . . . . .add 30-x
Then AG = 37+7 = 44
and DG = 37-15 = 22.
Of course, AD = AG +GD = 44 +22 = 66
If 150 grams of water is heated from 20°C to 30°C, the number of joules of
heat energy absorbed is...
Answer:
29/43
Explanation:because of the numbers
A student dissolves 4.51 grams of sodium hydroxide in 100.0 mL of water at 19.5 °C in a calorimeter. As the sodium hydroxide dissolves, the temperature of the surrounding water increases to 31.7 °C. What is the heat involved in the dissolving of the sodium hydroxide (the q)? Omg help meeeeee I’m in honors chem!
The heat involved in the dissolution of sodium hydroxide in the 100 mL of water is 5104.48 J
Data obtained from the question Mass of NaOH = 4.51 gVolume of water = 100 mL Initial temperature of water (T₁) = 19.5 °CFinal temperature of water (T₂) = 31.7 °C Heat of dissolving NaOH =?How to determine the heat
Heat lost by NaOH = heat gained by the water
Thus, we shall determine the heat gained by the water in order to obtain the heat of dissolution of NaOH.
The heat gained by the water can be obtained as follow:
Mass of water (M) = 100 gInitial temperature of water (T₁) = 19.5 °CFinal temperature of water (T₂) = 31.7 °CChange in temperature (ΔT) = 31.7 – 19.5 = 12.2 °C Specific heat capacity of the water (Cᵥᵥ) = 4.184 J/gºC Heat (Q) =?Q = MCΔT
Q = 100 × 4.184 × 12.2
Q = 5104.48 J
Thus, the heat of dissolution of NaOH is 5104.48 J
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If 3 moles of chlorine gas are reacted with excess sodium iodide, how many moles of I2 will be formed? (balance first!)
Cl2+ NaI → NaCl + I2
3 moles of I2 will be formed from 3 moles of chrlorine gas.
Explanation:
This is because, when you balance the given equation it allows for the mole ratio between the two given elements to be 1:1 so therefore 3 moles of chlorine gas will produce 3 moles of I2.
Which of the following choices could be an isomer of a compound with an empirical formula of C₄H₁₀O₃?
CHO
CH₂O
C₈H₂₀O₆
C₅H₁₁O₄
The statement, that describe an isomer of a compound with an empirical formula of C₄H₁₀O₃ is "CHO."
What is an empirical formula?The empirical formula of an organic compounds is the lowest whole number ratio of atoms contained in the substance, as defined in chemistry. The empirical formula gives the minimal ratio of the number of various atoms that existing. It's an empirical formula, if the formula is shortened, whereas not the exact number of atoms in the molecule, The given isomer of a compound is C₄H₁₀O₃. For this isomer, CHO is the empirical formula.
Hence, the correct answer is CHO.
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Calculate the partial
pressure of argon in a
gas mixture with a total
pressure of 2.4 atm.
The partial pressures
of the other gases are:
O2 = 128.0 mmHg
He = 167.5 mmHg and
Ne= 760.0 mmHg
The required partial pressure of argon gas present in the mixture is 1.02 atm.
What is Dalton law of gas?Dalton's law of gas states that total pressure of any mixture of gas is sum of the partial pressure of all the gases present in that mixture.
Given that,
Total pressure of mixture = 2.4 atm
Partial pressure of argon = ?
Partial pressure of oxygen = 128 mmHg = 0.168 atm
Partial pressure of helium = 167.5 mmHg = 0.220 atm
Partial pressure of neon = 760 mmHg = 1 atm
On putting all these values according to the definition we get the partial pressure of argon gas as:
Partial pressure of argon = 2.4 - (0.168 + 0.22 + 1) = 1.02 atm
Hence required partial pressure of argon gas is 1.02 atm
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What is the wavelength of a wave that has a frequency of 60 Hz and a speed
of 45 m/s?
O A. 0.75 m
O B. 15 m
O c. 1.3 m
D. 2700 m
The wavelength of the wave having a frequency of 60 Hz and a speed of 45 m/s is 0.75 m (Option A)
Relationship between velocity, frequency and wavelengthThe velocity, frequency and wavelength are related according to the following equation:
v = λf
where
v is the velocityλ is the wavelengthf is the frequencyHow to determine the wavelengthFrequency (f) = 60 HzVelocity (v) = 45 m/sWavelength (λ) = ?λ = v / f
λ = 45 / 60
λ = 0.75 m
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At the end of chemical reactions, what is the total mass of the reactants compared to the total mass of the products?
Given the specific heat of lead is 0.129 J/gK and that it takes 93.45 of energy to heat a sample of lead from 22.3°C to 40.4°C find the mass of the lead.
40.0 g
54 g
54.0 g
40 g
Answer:
nice
Explanation:
you can do it just try your best
Describe briefly a chemical test to identify a sample of each of the following gases in the laboratory. For each test include a short description of the procedure (method) and the expected observations.
Hyrogen gas
Oxygen gas
Carbon dioxide gas
Answer:
Am I the bad guy for killing my fish, let me explain?
Explanation:
The fish said a bad word that was incredibly inappropriate, so then I told him to never say that again. He responds with, "No, I CAN SAY WHATEVER I WANT." After that I told him to not yell at me and then I killed him, remember he's a fish (GoldFISH).
What is the mass of a baby (in grams) if the babies weight is 6 lbs. 6 oz?
Which prefix is used in the name of a stereoisomer to indicate that the
functional groups are on the same side of the double bond?
Answer:
"cis" (Latin for Side)
Calculate the molarity of a salt solution with a volume of 0.250L that contains 0.70 mol of NaCl. (SHOW WORK)
Answer:
= 0.28M
Explanation:
data:
volume = 0.250 L
= 0.250dm^3 ( 1litre = 1dm^3)
moles = 0.70 moles
Solution:
molarity = [tex]\frac{no. of moles}{volume in dm^3}[/tex]
= 0.70 / 0.250
molarity = 0.28 M
Which elements occupy the same group in the periodic table
Answer:
Elements that occupy the same column on the periodic table
Which is more soluble in 100grams of H2O at 70 degrees Celsius?
A) NH4Cl
B) NaNO3
C) KCL
D) KNO3
Answer:
KCL
Explanation:
is more soluble in 100grams of H2O at 70 degrees Celsius?
When all the atoms of particular type of matter are the same, the matter is a
Answer:
an element.
Explanation:
When all the atoms contain a nucleus with the same amount of protons then each atom is classified as the same element. Hence multiple atoms and a larger quantity of atoms of the same element is still just the same single element.
9. In a titration experiment 34.7 of a 0.145M solution of barium hydroxide \ Ba(OH) 2 \ is added to 20mL of hydrochloric acid (HCI) of unknown concentration until the equivalence point is reached. What is a) the molarity of the acid? and b ) How many grams of HCI are in the solution ?
Answer:
Titration reveals that 12 mL of 1.5 M hydrochloric acid are required to neutralize 25 mL calcium hydroxide solution . What is the molarity of the Ca(OH) 2 solution
Explanation:
At a particular temperature the solubility or NE in water is 0.0240 M when the partial pressure is 0.220 atm. What will the solubility (in m) be when the partial pressure of NE is 1.05atm?
It is expected at 1.05 atm the solubility increases if compared to the solubility at 0.222 atm.
What is the relationship between solubility and pressure?In general, an increase in pressure leads to an increase in solubility. In the same way, a decrease in pressure will decrease solubility.
What will happen at if the pressure is 1.05 atm?Considering the pressure increased, the most likely result is for the solubility to proportinally increase.
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Balance this equation:
Al(s) + O2 (g) -> Al2O3 (s)
Mole O2 = 9.10 g/32 g/mol = 0.2844 mol From the balanced equation, the mole ratio of O2 to Al2O3 is 3:2. This means that 3 moles of O2 react with Al to produce 2 moles of Al2O3.
Use the balanced chemical equation below. If I have 3.7 moles of AgNO3, how much Cu(NO3)2 should I produce?
Cu + 2 AgNO3 --> Cu(NO3)2 + 2 Ag
All metal nitrates are soluble in water, how are you going to do that?
But just for a theoretical exercise:
2AgNO3(aq) + Cu^2+(aq) >>>> 2Ag+(aq) + Cu(NO3)2
2 moles of silver nitrate produce 1 mole of copper nitrate.
Therefore 3 moles would produce 3/2 moles of copper nitrate.
Explanation:
Conversion factors:
1000 mL per L
1000 ug per mg
A certain atmospheric sample contains 1.01 x 10-4 mg of some contaminant per mL of air. This passes through an airlock, into some Mars colony lander with a volume of 2.28 x 104 L. 401 people are living and working inside. Assuming equal exposure among every person how many micrograms of contaminant will each person receive?
The number of micrograms of contaminant each person will receive is 5,742.64 ug.
Number of micrograms of contaminant per personThe number of micrograms of contaminant each person will receive is calculated as follows;
Amount of contaminant (mg) = (1.01 x 10⁻⁴ mg/mL) x 2.28 x 10⁴ L
Amount of contaminant (mg) = 2.3028 mg.L/mL
Amount of contaminant (mg) = (2.3028 mg.L/mL) x (1000 mL/L) = 2,302.8 mg
Amount of contaminant (ug) = 2,302.8 mg x 1000 ug/mg = 2,302,800 ug
Amount of contaminant per person (ug/person)= (2,302,800 ug) / (401 persons)
= 5,742.64 ug per person
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Convert 3.9 kcal into calories.
[tex]3.9 ~\text{kcal} = 3.9 \times 1000 ~ \text{cal} = 3900~ \text{cal.}[/tex]
PLEASE HELPPPPPP ASAPPPPP!!!!!
1. What is the nuclide symbol for an atom which has 43 protons, 55 neutrons and 39 electrons? (1) A. 98Tc++ B. 93Cs+ C. ABY D. 43Tct-
mass number = proton+neutron
mass number = 43+55 = 98
atomic number = proton = 43
charge = proton - electron = 43 - 39 = +4
symbol : ⁹⁸Tc⁺⁴
how do tidal bulges form?
Answer: The pull of the moon's gravity on Earth's water causes tidal bulges to form on the side closest to the moon and farthest from the moon. In the place where there are tidal bulges, high tide occurs along coastline.
Explanation:
