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
weeeeeb [17]
3 years ago
5

A 500.0 g sample of aluminium, I initially at 25.0 degrees, absorbs heat from its surroundings and reaches a final temperature o

f 90.7 degrees. How much heat (in KJ) has been absorbed by the sample? To one decimal place
Specific heat= 0.9930j g-1 K-1 for aluminium
Chemistry
1 answer:
babunello [35]3 years ago
3 0
Q= (500.0)(0.9930)(90.7 - 25.0)
Q= 32620.05
You might be interested in
In a voltaic cell, where does the reduction take place?
algol13

the cathode is where reduction occurs!

5 0
3 years ago
What is the volume of 2.5 moles of nitrogen gas (N2)<br>at standard temperature and pressure (STP)?​
gregori [183]

Answer:

1 mole of gas = 22.4L

2.5 moles of gas takes up = ( 22.4 L/ 1 mole ) x 2.5 mole

= 56 L

Explanation:

Please mark brainliest and have a great day!

8 0
3 years ago
Which of the following is true in regard to ions?
vfiekz [6]
<span>An ionized atom has a number of protons that is unequal to the number of electrons. - I took the Penn exam, 100% sure!</span>
7 0
3 years ago
Read 2 more answers
A 2.00 kg piece of lead at 40.0°C is placed in a very large quantity of water at 10.0°C,and thermal equilibrium is eventually re
sveticcg [70]

Answer:

Δ S = 26.2 J/K

Explanation:

The change in entropy can be calculated from the formula  -

Δ S = m Cp ln ( T₂ / T₁ )

Where ,

Δ S = change in entropy

m = mass  = 2.00 kg

Cp =specific heat of lead is 130 J / (kg ∙ K) .

T₂ = final temperature  10.0°C + 273 = 283 K

T₁ = initial temperature ,  40.0°C + 273 = 313 K

Applying the above formula ,

The change in entropy is calculated as ,

ΔS = m Cp ln ( T₂ / T₁ )  = (2.00 )( 130 ) ln( 283 K / 313 K )

ΔS = 26.2 J/K

6 0
3 years ago
8 points
butalik [34]

Answer:

1.3 meters

Explanation: use newton third law equation.

5 0
3 years ago
Other questions:
  • The molar mass of I2 is 253.80 g/mol, and the molar mass of NI3 is 394.71 g/mol. How many moles of I2 will form 3.58 g of NI3?
    13·2 answers
  • Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g
    6·1 answer
  • There are 2.60 x 1015 short tons of oxygen in the atmosphere ( 1 short ton = 2000 lb). How many metric tons of oxygen are oresen
    9·1 answer
  • Can someone PLEASE help me with this problem, I’ve tried it multiple times and keep getting it wrong :(
    7·1 answer
  • Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
    15·1 answer
  • The size of an organism is most likely determined by...?
    14·1 answer
  • Scientists classify rocks into three different types. What is the main basis for the classification system they chose? color of
    7·2 answers
  • Stephanie has been doing research on how petroleum is formed. She says that oxygen must be present while the tiny plants and ani
    10·2 answers
  • Noble gases tend to have what oxidation number
    12·1 answer
  • Are electrons exchanged between ionic or covalent bonds
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!