Answer:
False.
Explanation:
Fusion reactions are not yet commercially viable because they require extremely high energies to initiate and sustain a reaction.
The molecular geometry is square planar.
According to the Valence Shell Electron Pair Repulsion theory (VSEPR), the shape of a molecule is determined by the number of valence electrons surrounding the outermost shell of the central atom in the molecule.
In this case, the expected geometry based on VSEPR theory is octahedral. However, the lone pairs on opposite sides of the four single bonds leads to a square planar molecular geometry.
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Answer: caffeine is a compound.
Explanation:
1) As stated c<span>affeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed ratio.
2) The definition of compound is a pure substance formed by chemical bonding of two or more fifferent elements. That means a defined ratio of the elements in the compound, which conferes uniform and equal properties to every part of the compound.
Some examples of compounds are salt (NaCl), water (H2O), vinegard (CH3 COOH).
A mixture combines several elements or compounds, not bonded by chemical bonds but mixed in ratios which may vary.
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Ignore this its not the anwser 2.7g
response:- = - 2446.1KJ of heat.
<h3>What temperature does a chemical reaction reach?</h3>
The energy that is released or absorbed during a chemical reaction is known as the heat of reaction. When reactants are transformed into products, it describes how the energy content changes.
<h3 /><h3>What causes a chemical reaction to produce heat?</h3>
The heat is a result of the reactant molecules' chemical bonds, which contain more energy than the product molecules' chemical bonds do.
calculation:
- CH4 produces -802 kJ of heat per mole.
3.05 moles of... thus -802 x 3.05 = -2446.1 KJ heat
A negative sign signifies heat production or release.
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