There are 1.923×10^23 formula units in 30.4g mgcl2
molar mass of mgcl2= 95.211g/mol
magnesium= 24.305g/mol
chlorine= 35.45g/mol times 2
24.305+(35.45*2)= 95.211g/mol
sample divided by molar mass times Avogadro's number gives u the formula units
30.4÷ 95.211= .31929
.3193*6.022=1.9288
Substance - Elements and Compounds
Example of element is oxygen and that of compound is water.
Matter can be classified into mixture.
It can be heterogeneous and homogenous.
Example of heterogeneous mixture is milk.
Example of homogeneous mixture is air.
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Answer:
Orbital, in chemistry and physics, a mathematical expression, called a wave function, that describes properties characteristic of no more than two electrons in the vicinity of an atomic nucleus or of a system of nuclei as in a molecule. ... A 1s electron occupies the energy level nearest the nucleus.
Explanation:
Answer: Its so much larger because it has a core.
Explanation:
Jupiter is proven to have a core, the planet still could have formed that core through disk instability. Enough dust could have collected and cemented together in the dense gas to form a core many times larger than the size of the Earth
Answer:
kindly check the explanation section.
Explanation:
The largest rice cake in the world was discovered in the year 2007 in South Korea with a weight of 8,113 lb. The amount of energy in the World's largest rice cake can be determined by using the formula below:
The energy in kJ =[ mass of water] x [specific heat capacity of water] x [change in temperature].
In order to determine experimentally in the laboratory and make use of the formula above. The first thing[STEP ONE] to do is to measure the mass of the rice cake and record it.
STEP TWO: measure a known amount of water in a boiling tube.
STEP THREE: Heat the rice cake until it catches fire with a Bunsen flame.
STEP FOUR: Use the rice cake that has already caught fire in step three above and use it to heat the water in step two until the fire burns out.
Repeat the process for three to four times and record your observations under the following headings;
[1]. Mass of cake, [2]. Temperature of water before burning, [3]. Temperature of water after burning and Temperature increase per gram of the rice cake.
