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
Varvara68 [4.7K]
2 years ago
8

Mass weight of original copper rod

Chemistry
1 answer:
jolli1 [7]2 years ago
8 0

Answer:

copper, 8930.

Explanation:

Copper is a chemical element with the symbol Cu (from Latin: cuprum) and atomic number 29. to сuprum (Latin). Coper (Old English) and copper were derived from this, the later spelling first used around 1530.  muscle, and bone. The adult body contains between 1.4 and 2.1 mg of copper per kilogram of body weight.

You might be interested in
Why would fluorine, chlorine, and bromine be placed in the same group (the halogens) in the periodic table of elements? (1 point
inna [77]

D. They share chemical properties.

7 0
3 years ago
What are the major difference between potential and kinetic energy?​
Sholpan [36]

Answer:

The energy of a body or a system with respect to the motion of the body or of the particles in the system. Potential energy is the stored energy in an object or system because of its position or configuration. Kinetic energy of an object is relative to other moving and stationary objects in its immediate environment.

6 0
3 years ago
While exploring a coal mine, scientists found plant fossils in the ceiling of the mine which had been preserved by an earthquake
ale4655 [162]

Answer:

11552.45 years

Explanation:

Given that:

Half life = 5730 years

t_{1/2}=\frac{\ln2}{k}

Where, k is rate constant

So,  

k=\frac{\ln2}{t_{1/2}}

k=\frac{\ln2}{5730}\ years^{-1}

The rate constant, k = 0.00012 years⁻¹

Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given that:

The rate constant, k = 0.00012 years⁻¹

Initial concentration [A_0] = 160.0 counts/min

Final concentration [A_t] = 40.0 counts/min

Time = ?

Applying in the above equation, we get that:-

40.0=160.0e^{-0.00012\times t}

e^{-0.00012t}=\frac{1}{4}

-0.00012t=\ln \left(\frac{1}{4}\right)

t=11552.45\ years

7 0
3 years ago
During a tug of war competition neither team was able to gain an advantage which of the following explains the force is this sit
natulia [17]

Answer:

b i did the test

Explanation:

8 0
3 years ago
How many grams of O are in 675 g of Na2O
PIT_PIT [208]
I think it is .00005815
6 0
3 years ago
Other questions:
  • Computer model that usually shows a process is called
    6·1 answer
  • What is the formula for tetrasulfur hexabromide<br><br>If you answer I will give you a brainliest
    11·1 answer
  • What is the density of a piece of wood that has a mass of 25.0 g and a volume of 29.4 mL?
    12·1 answer
  • Read the false statement. Atoms of elements with one valence electron form anions in order to meet the octet rule. Which answer
    9·2 answers
  • Select the best answer for the question.
    15·1 answer
  • Sodium sulfate is slowly added to a solution containing 0.0500 M Ca 2 + ( aq ) and 0.0300 M Ag + ( aq ) . What will be the conce
    7·1 answer
  • A glass sphere is filled to full volume with a gas. The pressure of the gas inside the sphere is 30.0 atm, and the temperature i
    8·1 answer
  • What is the hydronium ion concentration of a solution whose pH is 4.12?
    11·1 answer
  • Two isotopes of the same element must have the same
    6·1 answer
  • Pls help tyy <br><br> How are NH 3 and O 2 reactants?<br><br> Explain your answer:
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!