Answer:
Surfactants reduce the surface tension of a liquid. The Most liklely thing to happen is that the viscosity of the water will decrease.
Answer: 0.4 g
Explanation:
1) Balanced chemical equation:
2) 2C2H2 + 5 O2 → 4CO2 + 2 H2O
3) mole ratios:
2 mol C2h2 : 5 mol O2
4) Convert 0.13 g C2H2 into number of moles
n = mass in grams / molar mass
molar mass C2H2 = 2 *12g/mol + 2*1 g/mol = 26 g/mol
n = 0.13 g / 26 g/mol = 0.005 mol
5) Set the proportion with the unknown
5 mol O2 x
----------------- = ---------------
2 mol C2H2 0.005 mol C2H2
x = 0.005 mol C2H2 * 5 mol O2 / 2 mol C2H2 = 0.0125 mol O2
6) Convert 0.0125 mol O2 to grams
mass = number of moles * molar mass
molar mass of O2 = 32 g/mol
mass = 0.0125 mol * 32 g/mol = 0.4 g
Answer: 0.4 g
Velocity can be defined as the displacement of a body per time.
<h3>What is velocity?</h3>
Velocity measures the rate at which a given distance is covered by a body in a specified direction.
Velocity is defined as the displacement of a body per time.
Mathematically,
- velocity = displacement/time.
Therefore, Velocity can be defined as the displacement of a body per time.
Learn more about velocity at: brainly.com/question/626479
Answer:
6.6 moles
Explanation:
Given data:
Moles of CO₂ produced = ?
Mass of C₃H₈ react = 97 g
Solution:
Chemical equation:
C₃H₈ + 5O₂ → 3CO₂ + 4H₂O
Number of moles of C₃H₈:
Number of moles = mass/ molar mass
Number of moles = 97 g/ 44.1 g/mol
Number of moles = 2.2 mol
Now we will compare the moles of C₃H₈ with CO₂ from balance chemical equation.
C₃H₈ : CO₂
1 : 3
2.2 : 3 ×2.2=6.6
Thus from 97 g of C₃H₈ 6.6 moles of CO₂ are produced.
Carbon
calcuim
iron
hydrogen
iodine
nitrogen
oxygen
phosphorus
sulfur
The letters are the symbols for those elements
