Answer:
1. Exothermic reaction
2. Is being released
3. The energy comes from the change in energy between reactants and products
Explanation:
The reaction is producing energy. A reaction that produce energy is called a <em>Exothermic reaction.</em>
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As the energy is produced, the energy is being <em>released.</em>
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As you can see in the image, the energy of the reactants is higher than the energy of the products. This change of energy in the chemicals produce the production of energy as heat.
<h3><u>Answer and explanation</u>;</h3>
- To balance the charges of ions the number of electrons lost is equal to the number of electrons gained. The overall net charge must be zero.
- The number of ions needed to accomplish this is represented by the subscripts.
- For any given ionic compound, the product of the charge on the ion (or multiatomic ionic group) times the subscript of the ion will give a total charge of zero when all ions are considered.
For examples: NaCl Na = +1 Cl = -1 total is zero
Answer:
The answer to your question is below
Explanation:
Alkane Formula Boiling point (°C)
Methane CH₄ -162
Ethane CH₃CH₃ - 89
Propane CH₃CH₂CH₃ - 42
Butane CH₃(CH₂)₂CH₃ - 0.5
Pentane CH₃(CH₂)₃CH₃ 36
Hexane CH₃(CH₂)₄CH₃ 69
Heptane CH₃(CH₂)₅CH₃ 98
Octane CH₃(CH₂)₆CH₃ 126
Nonane CH₃(CH₂)₇CH₃ 151
Decane CH₃(CH₂)₈CH₃ 174
Answer:
Methods for determining or delivering precise volumes include volumetric pipets and pycnometers; less precise methods include burets, graduated cylinders, and graduated pipets. In this experiment, you will measure masses and volumes to determine density. Four different metal cylinders are investigated.
Explanation:
