In a solid, molecules are packed together, and it keeps its shape. Liquids take the shape of the container. ... Molecular motion for the particles in a solid is confined to very small vibrations of the atoms around their fixed positions; therefore, solids have a fixed shape that is difficult to change. That’s all if you want brainliest would be nice
Answer:
0.465
Explanation:
To find the volume of a substance, divide the mass by the density.
M/D = V
10.0 / 21.5 = 0.4651163
Then round to 3 significant figures: and the density is 0.465
The answer to this question is C, I hope this helps you!
Answer:
Here are some guidelines for disposal of the following categories.
1. Glass
• Broken glasses should be clean, without odors or chemical debris.
• It should be collected in a cardboard box which bottom is taped.
• The box should be closed
• Label box "CLEAN BROKEN GLASS FOR RECYCLING"
• Contact the Custodial Services for removal of the box.
2. Chemical waste after reaction & Unused chemical.
• Disposal of such chemicals must be disposed of corresponding to the instructions obtained from the manufacturer or better still through licensed chemical removal company.
• A plan for disposal and procedures for chemicals disposal should be known before they are purchased.
• Based on the classification some waste should be held in the laboratory while others shouldn't be disposed during day light the characteristics of the solution.
• Overstock should be given to neighboring schools.
Explanation:
Answer:
Shape
Explanation:
Two factors that determine wether a molecule is polar are the types of atoms in the molecule and the <u>shape</u> of molecule.
Shape and polarity determine which type of compounds is.
if the shape of molecule is symmetric it will non polar. And it will dissolve in non polar solvent. The polar molecules are trigonal in shape.
Sodium chloride is ionic compound. The electronegativity of chlorine is 3.16 and for sodium is 0.93. There is large difference is present. That's why electron from sodium is transfer to the chlorine. Sodium becomes positive and chlorine becomes negative ion and compound is polar.
The compound having ionic bonds generally have moderate to high boiling points and melting point because of greater electrostatic interaction. Their electrical conductivity are high and these minerals tend to dissolve in water.
Covalent bond:
It is formed by the sharing of electron pair between bonded atoms.
The atom with larger electronegativity attract the electron pair more towards it self and becomes partial negative while the other atom becomes partial positive and compound will polar.
For example:
In water the electronegativity of oxygen is 3.44 and hydrogen is 2.2. That's why electron pair attracted more towards oxygen, thus oxygen becomes partial negative and hydrogen becomes partial positive.
If the ectronegativity difference is 0.4 or less than this the compound will be non polar covalent compound and will behave different from polar compound.
