Answer:
2.64%
Explanation:
mass percent = (grams of solute / grams of solution) x 100
mass percent = (2.4 / 91) × 100
mass percent = 2.64% to 3sf
Answer:
1. D
2. A
Explanation: Those are the only ones i know
Covalent
Explanation:
Pure covalent bond holds carbon in diamonds and graphite together. Carbon is a non-metal.
- Diamonds are formed under very high temperature and pressure.
- The carbon network are cross-linked to one another forming a strong compact shape.
- Covalent bonds are bonds formed between two atoms that shared their valence electrons.
- It usually forms where the electronegativity difference is zero or very low between two atoms.
- In diamond, the carbon bonds by sharing their valence electrons to achieve an octet.
Learn more:
Covalent bonds brainly.com/question/10901976
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The correct order of increasing surface tension at a given temperature, CH(OH)CH₂ OH >CH₃CH₂CH₂OH>HOCH₂ CH₂ OH>HOCH₂
With higher intermolecular pressures, a molecule's surface tension rises. Here, every molecule that is there has a hydrogen bond. It is well known that as the number of O-H bonds in a given molecule increases, so does the degree of hydrogen bonding. Strong intermolecular forces are thought to exist in molecules with more H-bonds. Due to the hydrogen bonds between water molecules, it has the highest surface tension of any liquid, save for mercury. Water molecules near the liquid's surface that are in contact with air are held tightly together by surface tension to create an imperceptible film.
Learn more about Surface tension here-
brainly.com/question/11348644
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The heart<span> is at the center of your circulatory system, which is a network of blood vessels that delivers blood to every part of your </span>body. Blood carries oxygen andother<span> important nutrients that all </span>body organs<span> need to stay </span>healthy<span> and to </span>work<span>properly.</span>
