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
OLga [1]
3 years ago
7

La TEMPERATURA es un cambio físico o Químico?

Chemistry
1 answer:
gladu [14]3 years ago
6 0
La temperatura es un cambio físico
You might be interested in
Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
iogann1982 [59]

Answer:

We need 226 grams of FeS

Explanation:

Step 1: Data given

Mass of FeCl2 = 326 grams

Molar mass FeCl2 = 126.75 g/mol

Step 2: The balanced equation

FeS + 2 HCl → H2S + FeCl2

Step 3: Calculate moles FeCl2

Moles FeCl2 = 326 grams / 126.75 grams

Moles FeCl2 = 2.57 moles

Step 4: Calculate moles FeS needed

For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl

For 2.57 moles FeCl2 we need 2.57 moles FeS

Step 5: Calculate mass FeS

Mass FeS = 2.57 moles * 87.92 g/mol

Mass FeS = 226 grams FeS

We need 226 grams of FeS

4 0
3 years ago
BRAINLIEST FOR RIGHT ANSWERS PLS HELP
AVprozaik [17]

Answer:

Lower

Option B

Pls mark it as brainlist.

5 0
2 years ago
What is The mass of 1 gram
NARA [144]
One kilogram is the answer
3 0
3 years ago
Read 2 more answers
Pls help . I don't know this one .
aliya0001 [1]
The answer is the first one, Xe
5 0
3 years ago
a gas that exerts a pressure of 215 torr in a container with a volume of 51.0 mL will exert a pressure of ? torr when transferre
zhannawk [14.2K]
To calculate the new pressure, we can use Boyle’s law to relate these two scenarios (Boyle’s law is used because the temperature is assumed to remain constant). Boyle’s law is:

P1V1 = P2V2,

Where “P” is pressure and “V” is volume. The pressure and volume of the first scenario is 215 torr and 51 mL, respectively, and the second scenario has a volume of 18.5 L (18,500 mL) and the unknown pressure - let’s call that “x”. Plugging these into the equation:

(215 torr)(51 mL) =(“x” torr)(18,500 mL)
x = 0.593 torr

The final pressure exerted by the gas would be 0.593 torr.

Hope this helps!
3 0
3 years ago
Other questions:
  • In an experiment using a calorimeter, the following data were obtained: what is the total number of joules absorbed by the water
    6·1 answer
  • How a convection current can enable a hawk or eagle to soar upward without flapping its wing 
    14·2 answers
  • Raising or lowering temperature. What happens to the pressure? Is this a direct or indirect relationship?
    9·1 answer
  • What is the correct formula for glucose? A) CO2H2O B) C6H12O6 C) CHO D) CO2 + H2O
    6·1 answer
  • What is the mass percentage of JUST water in the hydrate CuSO4 ∙5H2O? The molar mass for the whole compound is 249.71 g/mol.
    14·1 answer
  • How many moles are in 45.8 g of calcium nitrate, Ca(NO3),?
    10·1 answer
  • A transverse wave moves a medium at an abtuse angle to the wave , true or false ?​
    14·1 answer
  • Please help me with this question! I am a bit stuck.
    10·1 answer
  • Question 21 of 25 Which of the following requires a chemical change?
    5·2 answers
  • In what way do the oceans and the forests perform a similar function in the carbon cycle, under normal conditions?.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!