Answer:
54 moles
Explanation:
The ratio of AIF3 to CaF2 is, as seen in the equation, 2:3. This means you multiply 36 moles by 3, and then divide it by 2. This equals 54 moles of CaF2.
To calculate the percentage of people who have a particular allele population studies are conducted to collect data.true or false
Need help on this question asap pleasee
Answer:
9.0 moles of CaO
Explanation:
We have the reaction equation as follows;
Fe2O3 + Ca3(PO4)2 -------> 2FePO4 + 3CaO
Now we know from the equation that;
1 mole of iron III oxide yields 3 moles of CaO
Therefore;
3 moles of iron III oxide yields 3 * 3/1
= 9.0 moles of CaO
Which is NOT a way to accelerate an object? *
If 10ml of 1.00M HCI(aq) neutralized 30 ml of an NaOH solution. What was the molarity of the Na OH solution?
Explanation:
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URGENT!!!
Which statement explains why an increase in molality increases the boiling point of a solution? The addition of solute decreases the solvent’s vapor pressure. A higher temperature must then be applied to overcome the change. The addition of solute increases the solvent’s vapor pressure. A higher temperature must then be applied to overcome the change. The addition of solute increases the solvent’s ability to boil. The solute’s molecules repel the solvent’s molecules, giving them higher binding energy and hence the need for higher temperature.
Answer:
the addition to solute decreases the solvent's vapor pressure. a temperature must then be applied to overcome the change
Explanation:
Answer:
long story short: A
Explanation:
Answer question in picture
(D)
Explanation:
On the left side two molecules, each made of 2 grays and 3 blues, which suggests that only (D) offers the right combination: 2 Al atoms and 3 O atoms that make up Al2O3.
Need help on this question asap please please I’m going to really appreciate it
Answer:
0.11 moles
Explanation:
The equation of the reaction is;
2SO2 + O2 ------>2SO3
Number of moles of O2 in 3.42 g = 3.42g/32 g/mol = 0.11 moles
Hence, 0.11 moles of O2 is consumed when 3.42 g of O2 reacts with SO2 to form SO3.
The pressure of 25.0 L is increased from 11.0 kPa to 16.0 kPa. What is the new pressure
Answer:
Explanation:
If you want to eat foods that contain less additives, what could you do?
A.
Stay away from packaged foods.
B.
Stay away from fresh fruits and vegetables.
Answer: the answer is a
Explanation:
always eat fresh fruits and veggiies.
Structures and Forces - What is force and external forces.
Question 1) Jacob and Ravleen are moving furniture. They need to move the filing cabinet over 6 feet and it is very heavy. Jacob wants to apply force and push it by putting his hands on point A because he thinks it would be easier to move it from the top as there is less weight on the top. Ravleen says it's better to push at point B because the center of gravity is lower. Which person is correct and EXPLAIN why and what may happen if it is pushed in the wrong spot.
Answer:
The restoring force that prevents the furniture from tipping over when pushing the furniture towards the right, F= W × D
Where;
W = The weight of the furniture
D = The horizontal distance from the center of gravity of the furniture, CG and the to the lower right corner of the furniture
Given that A > D, for the furniture to tip over when pushing above the CG, we have;
F1 × A ≤ W × D
∴ F1 << W or for a force much smaller than W, the weight of the furniture applied above the center of gravity, the furniture will tip over
However when the force F2 is applied, where C < D, we have for no tipping over;
F2 × C ≤ W × D, therefore, given that C < D, when a force much higher than the weight, W, is applied at F2, the furniture will remain upright
Therefore, it is better push at a point lower than or equal to the center of gravity, whereby the point B is lower than the center of gravity, it is better to push at point B, Ravleen is correct and it is better to push at point B because the center of gravity is lower
If the furniture is pushed at the wrong spot it may tip over
Please see attached drawing
Explanation:
The concentration of a potassium manganate(VII) solution (KMnO4) is 10 g /l . What is the concentration of this solution in molarity?
Answer:
Have anyone found the answer to this? I’m on this grade result course right now
Explanation:
The concentration of a potassium manganate(VII) solution (KMnO4) is 10 g /L. What is the concentration of this solution in molarity is 0.06 M.
What is the molarity?The ratio of number of moles of solute to the volume of the solution in litre is called molarity. it is denoted by symbol M.
Given concentration (C) of potassium manganate(VII) solution in g/L is 10 g /L
Molarity = C/molar mass of KMnO4 = 10g/L ÷ 158.02g/mol = 0.06 mol/L
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Na+ and P-3 whats the formula and whats the name of it
Answer:
sodium phosphide!!!!!!!!!!!!!!!
write down the important difference between physical change and chemical change
Answer:
In a physical change the appearance or form of the matter changes but the kind of matter in the substance does not. However in a chemical change, the kind of matter changes and at least one new substance with new properties is formed.
Explanation:
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Answer:
physical change is reversible but chemical change is irreveesable4
A fertilized egg, or a
, is formed from the fusion of egg and sperm.
You come across two unknown plants and compare their leaves. Plant A has feather like leaves, while Plant B has needles. What type of plant is Plant B? Fern Flowering plant Pine tree Spores
Answer:
The correct answer is - Pine tree.
Explanation:
Coniferous trees or cone-bearing trees normally called conifers adapted their leaves and have needles like leaves that retain more water. Needles do not appear to be leaves but are modified leaves.
Conifer trees adapt this leaf modification to prevent water loss due to transpiration in the case of dry air or atmosphere. Important members of the conifer trees are pine trees, cedars, spruces, and Pines.
Mendel crossed tall pea plants with short pea plants. the offspring were all tall plants.
1. Which allele is recessive?
2. Which allele is dominant?

please hurry

Answer:
1. Allele for shortness (t)
2. Allele for tallness (T)
Explanation:
Gregor Mendel performed numerous experiments using pea plants (Pisium sativum). He tested the height traits of pea plants by crossing tall pea plants (TT) and short pea plants (tt) to obtain offsprings that were all tall (Tt) in the first filial generation (F1).
This is possible because the allele for tallness is DOMINANT while the allele for shortness is RECESSIVE. This means that tallness allele (T) will mask the phenotypic expression of shortness allele (t) when in an heterozygous state (Tt) as in the F1 generation.
What set of coefficients will balance the chemical equation: _NaBr (aq) + _H3PO4 (aq) → _Na3PO4(aq) + _HBr (aq)
A. 3,1,1,3
B. 1,2,3,1
C. 3,1,3,1
D. 1,1,3,3
The Balanced chemical equation for above reaction will be :
[tex] \small{ \mathrm{3NaBr + H_3PO_4 \rightarrow Na_3PO_4 + 3HBr}}[/tex]
The Coefficients will be :
[tex]NaBr - 3[/tex][tex]H_3PO_4 - 1[/tex][tex]Na_3PO_4 - 1[/tex][tex]HBr - 3 [/tex]So, Correct option is :
A. 3, 1, 1, 3
_____________________________
[tex]\mathrm{ \#TeeNForeveR}[/tex]
Calculate the molarity of a solution that contains 0.75 moles of lithium fluoride, LiF, in a 65 mL solution.
The molarity (M) of a solution is 11.5 M that contains 0.75 moles of lithium fluoride, LiF in a 65 ml of solution.
What is Molarity ?Molarity (M) is defined as the number of moles of solute dissolved in 1L of solution. Molarity is also known as Molar concentration. The S.I Unit of Molarity is molar (M) or mol/L.
How to find molarity of a solution ?Molarity (M) = [tex]\frac{\text{Number of moles of solute}}{\text{Volume of solution (in liters)}}[/tex]
From the above definition it is clear that the volume of solution is in liter. In question the volume of solution is given in ml.
So, convert 65 ml into l.
65 ml = [tex]\frac{65}{1000}[/tex] = 0.065 l
Now, put the values in above formula, we get that
(M) = [tex]\frac{0.75}{0.065}[/tex] = 11.5 M
Thus, the molarity of a solution is 11.5 M that contains 0.75 moles of lithium fluoride, LiF in a 65 ml of solution.
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Convert 22 grams of copper Il chloride (Cucl2) to moles.
with work please
What is the radius of this circle if the circumference is 18 pi cm?
Answer: 2.86 inches
Explanation: To find the radius, then, we insert 18 in for the circumference. So 18=2∏r. Solving for r gives 9/∏, or approximately 2.86 inches.
Answer:
2.86 inches
Explanation:
Write a balanced equation out of these chemicals
Answer:
2Na + 2H20--> 2NaOH+H2
............. this is the ans
I can't seem to figure out how to set up charts so there's just a screenshot of the question in the file attached :) Thank's for any help!!
Answer:
See Explanation
Explanation:
Volume of base used = (31.79 - 1.6) + (32.12 - 0.98) + (42.87 -13.21)/3 = 30.34 cm3
Volume of acid used = (24.86 - 0.42) + (24.11 - 0.11) + (27.67 -3.42)/3 = 24.23 cm3
For trial 1= number of moles of HBr = 24.44/1000 * 0.3 = 0.0073 moles
For trial 2= number of moles of HBr = 24/1000 * 0.3 = 0.0072 moles
For trial 3= number of moles of HBr = 0.0089 moles
HBr(aq) + KOH(aq) -----> KBr(aq) + H2O(l)
One mole of base is required to neutralize one mole of acid.
From CAVA/CBVB =nA/nB
CAVAnB = CBVBnA
CB = CAVAnB/VBnA
CB = 0.3 * 24.23 * 1/30.34 * 1
CB = 0.24 moldm-3
number of moles of KOH = concentration * volume
number of moles = mass/molar mass
molar mass of KOH = 56 g/mol
mass/56 = 0.24 * 30.34/1000
mass = 0.24 * 30.34/1000 * 56
mass =0.408 g of KOH
What is the difference between Mitosis and Meiosis?
Anyone know this question
Answer:
12
my advice is split the equation into 2 and write on each side how many atoms of each element are there and it will be easier to balance.
Agustina was standing on the edge of a cliff of unknown height holding a bowling ball. She wanted to find the height of the cliff. She worked with Maite to time the how long the bowling took to fall to the bottom of the cliff. Maite timed the drop at 9.4 seconds on each of their 10 trials. The bowling ball started at rest on each of the trials. What distance did the bowling ball fall in each trial?
Answer:
433 m
Explanation:
Since the fall represents motion under gravity, we use the equation
s = ut - 1/2gt² where s = height of cliff or distance bowling ball falls through, u = initial velocity of bowling ball = 0 m/s(since it starts from rest), t = time = 9.4 s and g = acceleration due to gravity = -9.8 m/s².
So, substituting the values of the variables into the equation, we have
s = 0 m/s × 9.4 s - 1/2 × 9.8 m/s² × (9.4 s)²
s = 0 m - 1/2 × -9.8 m/s² × 88.36 s²
s = 1/2(865.928 m)
s = 432.964
s ≅ 433 m
At 289 K, a sample of gas has a volume of 42.0 cm3. What volume does the gas occupy at 342 K? (12.5 Points)
Answer: [tex]49.7\ cm^3[/tex]
Explanation:
Given
At temperature [tex]T_1=289\ K[/tex]
Volume is [tex]V_1=42\ cm^3[/tex]
and the temperature changes to [tex]T_2=342\ K[/tex]
At this temperature volume is [tex]V_2[/tex]
Consider Pressure remains the constant
[tex]\therefore \dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\\Rightarrow V_2=V_1\times \dfrac{T_2}{T_1}\\\\\text{Insert values}\\\\\Rightarrow V_2=42\times \dfrac{342}{289}\\\\\Rightarrow V_2=49.7\ cm^3[/tex]
The volume at this temperature is [tex]49.7\ cm^3[/tex]
2C2H2 + 5O2 → 4CO2 + 2H2O
Which of the following statements would be correct if one mole of C2H2 was used in this reaction? (5 points)
a
One mole of oxygen was used in this reaction.
b
Five moles of oxygen were used in this reaction.
c
Four moles of carbon dioxide were produced from this reaction.
d
Two moles of carbon dioxide were produced from this reaction.
Answer:
d. Two moles of carbon dioxide were produced from this reaction
Explanation:
The given chemical reaction can be written as follows;
2C₂H₂ + 5O₂ → 4CO₂ + 2H₂O
From the above chemical reaction, we have;
Two moles of C₂H₂ reacts with five moles of O₂ to produce four moles of CO₂ and two moles of H₂O
We have;
One mole of C₂H₂ will react with two and half moles of O₂ to produce two moles of CO₂ and one mole of H₂O
Therefore, in the above reaction, when one mole of C₂H₂ is used, two moles of CO₂ will be produced.
Cuál es la Masa en Gramos de 3,5 moles de H2O?
Which is the correct chemical formula for Pentacarbon Tetraphosphide
Answer:
C5P4
Explanation:
the answer is C5P4 because penta is 5 and tetra is 4
Somebody please help this is due in 30 minutes! (picture is attached)
44.5 g Al2(SO4)3
Explanation:
# moles Ba(NO3)2 = (0.543M)(0.717 L)
= 0.389 mol Ba(NO3)2
Now we use the molar ratios,
0.389 mol Ba(NO3)2 ×(1 mol Al2(SO4)3/3 mol Ba(NO3)2)
= 0.130 mol Al2(SO4)3
0.130 mol Al2(SO4)3 × (342.15 g Al2(SO4)3/(1 mol Al2(SO4)3)
= 44.5 g Al2(SO4)3