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asambeis [7]
3 years ago
15

Based on the results of this lab, write a short paragraph that summarizes how to distinguish physical changes from chemical chan

ges. Physical changes occur when the properties of a substance are retained and/or the materials can be recovered after the change. Chemical changes involve the formation of a new substance.
Chemistry
2 answers:
kolbaska11 [484]3 years ago
8 0

Answer:

g

Explanation:

gtyjtyj

qwelly [4]3 years ago
3 0

Answer:

what were the results

Explanation:

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A ballon at 2.7atm has a volume of 1.6L.What will be the volume if the pressure is reduced to 1,3atm?
hodyreva [135]

Answer:

3.3 L

Explanation:

Step 1: Given data

  • Initial pressure (P₁): 2.7 atm
  • Initial volume (V₁): 1.6 L
  • Final pressure (P₂): 1.3 atm
  • Final volume (V₂): ?

Step 2: Calculate the final volume of the balloon

Inside the balloon we have gas. If we consider it behaves as an ideal gas, we can calculate the final volume using Boyle's law.

P₁ × V₁ = P₂ × V₂

V₂ = P₁ × V₁ / P₂

V₂ = 2.7 atm × 1.6 L / 1.3 atm

V₂ = 3.3 L

5 0
3 years ago
What chemical is a letter or pair of letters representing an element?
Mashcka [7]

Answer:

Atomic Oribal

Explanation:

There are four basic types of electron orbitals – s, p, d, and f. (Visual representations can be found in the tutorial above.) The s subshell is a spherical orbital which can contain up to two electrons. Each energy level has one s subshell.

8 0
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