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Mumz [18]
3 years ago
10

Identify the smaller

Chemistry
1 answer:
pochemuha3 years ago
3 0

Answer:

sub-particle      charge         mass

protons                  +1                 1

neutron                   0                 1

electron                - 1            negligible

protons and neutrons are found in the nucleus

electrons in the shells orbiting the nucleus

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PLEASE HELP!!! 890 g of reactant A completely reacts with 120 g of reactant B to form two products. If product A has a mass of 9
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4 years ago
The Reynolds number, Re, is a dimensionless number used to characterize different flow regimes in a fluid. The Reynolds number c
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Answer:

Re=2094,76

Explanation:

For a fluid that circulates inside a straight circular pipe, the Reynolds number is given by:

Re=\frac{pvD}{u}

where (using the international measurement system):

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  • v: velocity of the fluid [m/s]
  • D: diameter of the pipe through which the fluid circulates [m]
  • μ: dynamic viscosity [Pa.s]

To solve the probelm, we just need to replace our data using <u>THE CORRECT UNITS</u> in the Reynolds number equation. So we have:

ρ=1051 kg/m3,

v=34,3 cm/s=0,343 m/s

D=2,15 cm = 0,0215 m

μ = 3,7 cp * 10^-3 Pa.s/1 cp = 3,7*10^-3 Pa.s

Replacing in the main equation:

Re=\frac{1051\frac{kg}{m^{3} }*0,343\frac{m}{s}*0,0215m  }{3,7*10^{-3}Pa.s } =2094,76

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3 0
3 years ago
Please write down the definitions of elements, compounds, mixtures, homogenous mixtures, and heterogenous mixtures.
MA_775_DIABLO [31]

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3 0
3 years ago
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Rate law says that rate of a reaction is directly proportional to the concentration of the reactants each raised to a stoichiometric coefficient determined experimentally called as order.

Molecularity of the reaction is defined as the number of atoms, ions or molecules that must colloid with one another simultaneously so as to result into a chemical reaction.

Order of the reaction is defined as the sum of the concentration of terms on which the rate of the reaction actually depends. It is the sum of the exponents of the molar concentration in the rate law expression.

Elementary reactions are defined as the reactions for which the order of the reaction is same as its molecularity and order with respect to each reactant is equal to its stoichiometric coefficient as represented in the balanced chemical reaction.

aA=bB\rightarrow cC+dD

Rate=k[A]^a[B]^b

k= rate constant

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b = order with respect to B

5 0
3 years ago
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