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
Marina86 [1]
3 years ago
9

What is energy= energy out

Chemistry
2 answers:
Vaselesa [24]3 years ago
5 0
Total energy put into the system, a closed system must equal the total energy coming off or exiting the system, in other words, total energy is and must be conserved. The difference then would be zero, as energy in = energy out.
zubka84 [21]3 years ago
4 0
I think it might mean like energy went off not sure tho 
You might be interested in
Please help me it is easy I will reward Brainliest
Dvinal [7]

Answer:

Parallel Circuit

8 0
3 years ago
Read 2 more answers
Calculate the pH of a solution that has a [OH−] of 2.6 × 10^−6 M.
TiliK225 [7]

Answer:

A. 8.4

Explanation:

[OH⁻] = 2.6 × 10⁻⁶               Take the negative log of each side

-log[OH⁻] = pOH = 5.59     Apply the pH/pOH relation

pH + pOH = 14.00               Insert the value of pOH

pH + 5.59 = 14.00               Subtract 5.59 from each side

pH = 14.00 -5.59 = 8.41

7 0
3 years ago
Write the name of the element that corresponds to each of the following symbols.
Fed [463]
Kr= krypton
K= potassium
C=carbon
En= neon
Si= silicon
Au= gold
Ni= nitrogen
Br= berillium
Mg=magnesium
Mn= mangenese
Al: aluminum
8 0
3 years ago
Read 2 more answers
How many grams of C are there in 0.234 moles of caffeine?
elixir [45]

Solo lo ago para obtener puntos jejeje

8 0
3 years ago
The half life of an isotope X is 3 days how long will it take for 1/2 of a 10 G sample to decay
lorasvet [3.4K]

Answer:  It will take 3 days for half of a 10 g sample to decay.

Explanation:

Half-life of sample of an isotope X = 3 days

\lambda=\frac{0.693}{t_{\frac{1}{2}}}=\frac{0.693}{3 days}=0.231 day^{-1}

N=N_o\times e^{-\lambda t}

\lnN=-\lambda t\lnN_o

Sample decayed = \frac{N_o}{2}=\frac{10 g}{2 g}=5 g

N=N^o-\text{sample decayed}=10 g-5 g=5 g, time = t

\ln[5 g]=-0.231 day^{-1}\times t\ln[10]

\ln[\frac{5}{10}]=-0.231\times t

\ln\frac{1}{2}=-0.693=-0.231\times t

t = 3 days

It will take 3 days for half of a 10 g sample to decay.

3 0
3 years ago
Other questions:
  • Oxygen is composed of only one kind of atom and can’t be separated into simpler substances. What type of matter is it? A. soluti
    9·2 answers
  • If a falling rock undergoes a Δv of 112ms due to an a¯¯¯ of 9.8 m/s2, how long did it fall? A. 6.7 seconds B. 11.4 seconds C. 0.
    14·1 answer
  • A sample of 0.370 mol of a metal oxide (m2o3) weighs 55.45 g. how many grams of o are in the sample?
    9·1 answer
  • How many atoms are in 2.5 moles of Br?
    11·1 answer
  • Calculate the mass of 5.3 moles of chloric acid (HClO3). Please Answer ASAP!!!! :((((((\
    7·1 answer
  • 2. In the water cycle, lake water will do which​
    8·1 answer
  • Chemical change example
    6·1 answer
  • 12) A 17.92 g sample of copper was submerged in water, and the volume reading rose by 2.00 mL. What is the density of the copper
    12·1 answer
  • A gas sample occupies 95.0 mL at 755 mmHg at 15°C. Calculate the volume at 957 mmHG and 49 degrees C.​
    14·1 answer
  • What happen to the energy that is lost when water change to gas
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!