Answer: Gases have the lowest density of the three, are highly compressible, and completely fill any container in which they are placed. Gases behave this way because their intermolecular forces are relatively weak, so their molecules are constantly moving independently of the other molecules present. Solids, in contrast, are relatively dense, rigid, and incompressible because their intermolecular forces are so strong that the molecules are essentially locked in place.
Explanation:
Answer:
Alkane
Explanation:
Alkenes have CH in their condensed formulas and alkynes have C in their condensed formulas. There are only CH3 and CH2 so it's an alkane.
Answer:
493 mL has to evaporate
Explanation:
Step 1: Data given
Initial volume of the sodium chloride (NaCl) solution = 750 mL = 0.750 L
Molarity of the sodium chloride (NaCl) solution = 1.2 M
The concentration needed = 3.5 M
Step 2: Calculate the volume needed
To have a higher concentration we should lower the volume
C1*V1 = C2*V2
⇒C1 = the original concentration = 1.2 M
⇒V1 = the initial volume = 0.750 L
⇒C2 = the new concentration = 3.5 M
⇒V2 = the new volume needed = TO BE DETERMINED
1.2 M * 0.750 L = 3.5 M * V2
V2 = 0.257 L
To have a concentration of 3.5 M we need 0.257 L or 257 mL
Step 3: Calculate the volume of water to evaporate
750 mL - 257 = 493
493 mL has to evaporate
Answer:
Compound
Explanation:
The given specie is a compound.
A compound is made up of two or more kinds of atoms/elements joined together in a definite grouping.
- The properties of a compound are distinct and different from those of the individual elements that are combined in its make-up.
- For this given specie, the elements are carbon, hydrogen and oxygen.
- So, this is a compound.
Elements are distinct substances that cannot be split - up into simpler substances. Such substances consist of only one kind of atom
Answer:
We assume you are converting between moles CCl4 and gram. You can view more details on each measurement unit: molecular weight of CCl4 or grams This compound is also known as Carbon Tetrachloride. The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles CCl4, or 153.8227 grams.
Explanation:
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