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
katovenus [111]
3 years ago
5

Trial 1: Heat 30.0 grams of water at 0 °C to a final temperature of 40.0 °C.

Chemistry
1 answer:
kap26 [50]3 years ago
3 0

Answer:

Explanation:

Using the formula below to calculate the heat absorbed in each trial:

Q = m × c × ∆T

Where;

Q = amount of heat absorbed (J)

m = mass of substance (g)

c = specific heat of water (4.184J/g°C)

∆T = change in temperature (°C)

Trial 1: Heat 30.0 grams of water at 0 °C to a final temperature of 40.0 °C.

Q = 30 × 4.184 × (40 - 0)

Q = 30 × 4.184 × 40

Q = 5,020.8J

Trial 2: Heat 40.0 grams of water at 10.0 °C to a final temperature of 40.0 °C.

You might be interested in
the mass of a liquid is 11.50 g and its volume is 9.03 mL. How many significant figures should its density value have?
BlackZzzverrR [31]

Answer:

3

Explanation:

The mass has 4 sig digits.

The volume has 3 sig digits

The density is = 11.50/9.03 = 1.2735

To 3 sig digits (determined by 9.03) the answer would be 1.27 gram/mL

6 0
3 years ago
Bacteria living in the soil are dependent upon which of the following abiotic factors?
Irina-Kira [14]
Soil temperature and <span>water content</span>
7 0
3 years ago
Read 2 more answers
Why does the light bulbs have to be part of the loop in order for it to be succesful?
alina1380 [7]
The light bulbs ave to be a part of the loop in order for it to be successful because it have to have wires to a circuit  breaker so you can see.


6 0
3 years ago
Hurry please quick summary
Nadya [2.5K]
I think that work is being done on the books because they are being moved to their proper location and they will be sorted properly rather than lying on a table. Without lifting or carrying, you could sort the books by their genre or title name on the bookshelf so it will be sorted much more efficiently.

I’m not sure if this is the answer you are looking for but I hope it helps :)
3 0
3 years ago
Consider the model of the nitrogen atom which electron configuration matches the model
san4es73 [151]

Answer:

           1s², 2s², 2p³  

Explanation:

The atomic number of Nitrogen is seven. So it contains seven protons and seven electrons in neutral form. Also, the electronic configuration cited above contains seven electrons among which two electrons are present in first shell and five electrons are present in valence shell respectively.

8 0
3 years ago
Other questions:
  • Which statement accurately compares the trends in atomic number and atomic mass in the periodic table?
    10·2 answers
  • A pure compound is found to be 40.0% carbon by mass, 6.73% hydrogen by mass, and 53.3% oxygen by mass. determine the empirical f
    12·1 answer
  • a rough guide to fluid requirements based on body weight is 100mL/kg for the first 10kg of body weight, 50mL/kg for the next 10k
    9·1 answer
  • 2. What happens to the pH when you add more H+ ions to a solution that has no buffers?
    15·1 answer
  • If if it takes 41.72 Joules to heat a piece of gold weighing 18.69 g from 10°C two 27°C what is the specific heat
    12·1 answer
  • Why was Becquerel’s experiment a first step in discovering radioactivity?
    12·2 answers
  • Describe some of the dangers of Global warming.
    13·1 answer
  • What is the molar mass of Ca(OH)2
    7·2 answers
  • True or False: Ionic bonding means atoms COMPLETELY GIVE AWAY OR TAKE their electrons from each other. *
    7·1 answer
  • Use electron configurations to account for the stability of the lanthanide ions Ce4⁺ and Eu2⁺.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!