1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Liono4ka [1.6K]
4 years ago
11

Classify each change as physical or chemical.

Chemistry
1 answer:
trasher [3.6K]4 years ago
4 0

A chemical

B physical

C physical

D Chemical

You might be interested in
This biome has the nutrient poor soil
nikklg [1K]

Answer:

the answer is the tropical rain forest

7 0
3 years ago
0.20 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 4.5 L of solution. What is the pH of this solution?
amid [387]
Thats allllllll otttt but ill help

step by step
8 0
3 years ago
How many moles of ag are formed by the complete reaction of 28.3 mol of pb?
levacccp [35]
<span>Answer: 56.6 moles Explanation: 28.3 moles of Pb would produce twice as much moles as Ag. 28.3 X (2moles Ag/ 1 mol Pb) = 56.6 moles of Ag.</span>
4 0
4 years ago
Help lols plsssksksksksskd
artcher [175]

Answer:

I'd say "a" because not everything with plants and animals is perfectly organized together nothing ever is.

3 0
3 years ago
2. HOW MUCH HEAT IS REQUIRED TO BE RELEASED WHEN
jarptica [38.1K]

Answer: -112200J

Explanation:

The amount of heat (Q) released from an heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

Since,

Q = ?

Mass of water vapour = 30.0g

C = 187 J/ G°C

Φ = (Final temperature - Initial temperature)

= 100°C - 120°C = -20°C

Then apply the formula, Q = MCΦ

Q = 30.0g x 187 J/ G°C x -20°C

Q = -112200J (The negative sign does indicates that heat was released to the surroundings)

Thus, -112200 joules of heat is released when cooling the superheated vapour.

5 0
4 years ago
Other questions:
  • Calculate the root mean square velocity of gaseous argon atoms at 26 ∘c.
    13·1 answer
  • Select the correct answer. _____enable long-term resistance to infections that have been present in the body before. A. Monocyte
    5·1 answer
  • Draw a three-dimensional representation of the oxygen-bearing carbon atom in ethanol,
    12·1 answer
  • How much ammonium chloride is needed to saturate 100 grams of water at 60 degrees Celsius​
    6·1 answer
  • Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode onto a pure chromium cathode
    14·1 answer
  • OHC-CH2-CH2-CH2-CHO<br><br> What is the IUPAC name of this compound ?
    14·1 answer
  • If a object started moving have did it’s velocity change?
    5·1 answer
  • Explain why seeing a gas doesn not always indicate that there was a chemical change. ​
    7·1 answer
  • You are determining the density of an unknown solid. You figure out the volume by water displacement. Then you weigh the solid,
    7·1 answer
  • Why aren’t dominant genes ALWAYS more common?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!