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Pt
78
is most likely to undergo beta decay.
During the process of beta decay the mass number of the parent nuclide becomes equal to the newly created nuclide. On the other hand, the atomic number of the newly created nuclei increases or decreases by one unit.
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A cubic box with sides of 20.0 cm contains 2.00 × 1023 molecules of helium with a root-mean-square speed (thermal speed) of 200 m/s. The mass of a helium molecule is 3.40 × 10-27 kg. What is the average pressure exerted by the molecules on the walls of the container? (The Boltzmann constant is 1.38 × 10-23 J/K and the ideal gas constant is R = 8.314 J/mol•K .) (12 pts.)
An aerosol is a colloidal _____ suspended in a _____. A.liquid B.solid C.gas
Ri1. Among these which is the example of compound?a) sulphurb) ironc) ammoniader
The enthalpy of combustion of acetylene C2H2 is described by C2H2(g) + (5/2) O2(g) →2CO2(g) + H2O(l), Hrxn= –1299 kJ/mol. Calculate the enthalpy of formation of acetylene, given the following enthalpies of formation Hf[CO2(g)] = –393.5 kJ/mol Hf[H2O(l)] = –285.8 kJ/mo
a) air
b) land
c) water
d) birds in the air
e) trees on land
f) organisms in the water
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The resources and organisms are affected by oil spillages are Air, Water, and Organisms in water
Effect of oil spillage
Oil spillage can cause to the general environment and the organisms in the environment.
Based on the passage, the resources and organisms are affected by oil spillages include the following;
- Air
- Water, and
- Organisms in water
Learn more about oil spillage here: brainly.com/question/2880031
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Answer:
A,C,F/Air,water,orginisams in water
Explanation:
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Explanation:
a)Boyle's law states that pressure is inversely proportional to the volume of the gas at constant temperature.
(At constant temperature)
The equation given by this law is:
where,
are initial pressure and volume respectively.
are final pressure and volume respectively.
b) A graph of the relationship is attached as an image.
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5.7% sugar
5.1% fiber
5.4% protein
0.4% fat
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Answer:
We are given the formula of the compound:
C12H24O6
The empirical formula of a molecular formula is the lowest whole number ratio between the number of atoms of each element
The ratio of C to H to O in the given formula is :
12 : 24 : 6
we notice that all 3 of the numbers have 6 in common. Dividing all three of the numbers by 6, we get:
2 : 4 : 1
Hence, the ratio of Carbon to Hydrogen to Oxygen in the empirical formula of the given compound is 2 : 4 : 1 ,
Empirical Formula = C2H4O
Answer:
The empirical formula for C12 H24 O6 is C2 H4 O.
B. How many grams of copper are in the necklace.?
C. If the 18- karat gold has a density of 15.5g/cm^3, what is the volume in cubic centimeters?
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Equivalent weight of the compound
caco3
Answers
Answer:
CaCO3,which is Calcium Carbonate. It’s equivalent mass is 50 g. Explanation:-. Mass of CaCO3=Mass of 1 atom of Calcium (Ca)+Mass of 1 atom of Carbon (C)+Mass of 3 atoms of Oxygen (O). Mass of 1 atom of Calcium=1×40g=40g. Mass of 1 atom of Carbon=1×12g=12g. Mass of 3 atoms of Oxygen=3×16g=48g.
Explanation: Hope this helps :)