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
andrew11 [14]
3 years ago
11

an unknown sample with a mass of 50.0 grams changes from an initial temperature of 22.5°C to a final temperature of 32.4°C. It i

s known that the sample absorbed 444 J and f heat l. Bases on this information, what substance in the table is most likely the identity of this sample?​

Chemistry
1 answer:
makvit [3.9K]3 years ago
7 0

Answer:

Aluminum

Explanation:

You might be interested in
True or false? An organism may play more than one role in a food web
almond37 [142]

FALSE

Organisms may play only one role in an ecosystem. ... Each of the organisms in an ecosystem fills the energy role of producer, consumer, or decomposer.

~~~~iln~~~~~~

3 0
3 years ago
Read 2 more answers
The volume of oxygen, collected over water, is 185 mL at 25 degrees Celsius and 600 torr. calculate the dry volume of the oxygen
ivolga24 [154]

Answer:

0.1593 L.

Explanation:

  • We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

  • If n and P are constant, and have two different values of V and T:

<em>P₁V₁T₂ = P₂V₂T₁</em>

<em></em>

P₁ = 600 torr/760 = 0.789 atm, V₁ = 185.0 mL = 0.185 L, T₁ = 25.0°C + 273 = 298.0 K.

P₂ (at STP) = 1.0 atm, V₂ = ??? L, T₂ (at STP = 0.0°C) = 0.0°C + 273 = 273.0 K.

<em>∴ V₂ = P₁V₁T₂/P₂T₁</em> = (0.789 atm)(0.185 mL)(298.0 K)/(1.0 atm)(273.0 K) = <em>0.1593 L.</em>

4 0
3 years ago
The distance between Earth and its moon is 384000000 meters. Express this distance in kilometers.
Andreyy89
384000000m

to change from m to km you just need to divide that give unit in Meters by 1000

which equals,
384000

so,

384000000 meters = 384000 kilometers
3 0
3 years ago
Example: Make 100 mL 0.05 M NaOH from a 1.5 M solution.<br>0.05 * 100 = 1.5 * ?​
____ [38]

Answer:

3.33

Explanation:

M= 0.05*100/1.5= 3.33

4 0
3 years ago
HNO3 + KOH + H2O + KNO3<br><br> ACID:<br> BASE:<br> SALT:
SSSSS [86.1K]

Explanation:

acid, HNO3

base, KOH

salt ,KNO3

4 0
3 years ago
Other questions:
  • What problem does the hudson river still face
    11·2 answers
  • What is the chemical formula of the ionic compound that forms from potassium and bromine?
    14·1 answer
  • Which of the following atoms is likely to transfer (and lose) an electron when it forms an ion? Please choose the correct answer
    10·1 answer
  • The formula for the compound that contains Cu2+ actions and oxygen anions is
    10·1 answer
  • Carbonic acid dissolves limestone and other rocks. this is an example of _____. acid erosion chemical weathering biological weat
    15·1 answer
  • 3) (4.5 x 10-14) x (5.2 x 103) = ?
    8·2 answers
  • An ionic bond forms between what two types of atoms?
    6·1 answer
  • What is the difference between sea and ocean
    5·2 answers
  • A chemist heats the block of copper as shown in the interactive, then places the metal sample in a cup of oil at 25.00 °C instea
    5·1 answer
  • Explain any differences in the pulse rate at rest and after exercise ( in own words btw^^
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!