C. They come from energy sources that never run out.
Answer:
b
Explanation fission reaction the mass defect is negative
Sublimation is the change of state from a solid to gas, or liquid to solid on cooling. The type of mixtures that can be separated by means of sublimation, are mixtures of solids; (e.g. Sodium Chloride, and Ammonium Chloride.).
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Answer:
1.98 M
Explanation:
Given data
- Initial volume (V₁): 93.2 mL
- Initial concentration (C₁): 2.03 M
- Volume of water added: 3.92 L
Step 1: Convert V₁ to liters
We will use the relationship 1 L = 1000 mL.
Step 2: Calculate the final volume (V₂)
The final volume is the sum of the initial volume and the volume of water.
Step 3: Calculate the final concentration (C₂)
We will use the dilution rule.
Elements can be chemically combined into compounds, therefore, a compound consists of two or more elements combined, in definite proportions, by chemical means. Compounds may be formed by combining atoms of their constituent elements by ionic bonds or by covalent bonds.
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