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
sveta [45]
3 years ago
11

A copper metal bar that has only copper atoms in it

Chemistry
1 answer:
Jet001 [13]3 years ago
5 0
What’s the question???
You might be interested in
Why is the combined cycle power generation system so much more efficient that the straight steam cycle?
rewona [7]

Answer:

  Because it uses the residual energy of the fluid used by the first engine.

Explanation:

  A combined cycle power generation counts with two heat engines that work in tandem from the same source of heat. The engines turn the energy into mechanical energy.

  The cycle is much more efficient than the other, almost 60% more.

  I hope this answer helps you.

8 0
3 years ago
Which is most likely an effect of long-term environmental changes
Alina [70]

Answer:

adaptation

extinction

speciation

Explanation:

6 0
3 years ago
Read 2 more answers
There are three stable isotopes of magnesium. Their masses are 23.9850, 24.9858, and 25.9826 u. If the average atomic mass of ma
olganol [36]

Answer:

²⁵ Mg = 10.00%

²⁶ Mg = 11.0%

Explanation:

Given that:

Magnesium ²⁴Mg has an abundance of 78.99%

Hence, (100 - 78.99)% = 21.01%

21.01% is the abundance of ²⁵ Mg and ²⁶ Mg

Suppose,

²⁵ Mg = x

²⁶ Mg = (21.01 - x)%

Then;

avg. atomic mass = \dfrac{78.99}{100 }(23.9850)+\dfrac{x}{100}(24.9858) +\dfrac{21.01-x}{100}(25.9826)

where the avg. atomic mass = 24.3050

∴

24.3050 \times 100 = {78.99}(23.9850)+\dfrac{x}{100}(24.9858) +\dfrac{21.01-x}{100}(25.9826)

2430.5 = 2440.46915 -0.9968 x

0.9968x = 2440.46915 - 2430.5

0.9968x = 9.96915

x  =  9.96915/0.9968

x  =  10.00%

∴ Recall that:

²⁵ Mg = x

²⁶ Mg = (21.01 - x)%

²⁵ Mg = 10.00%

²⁶ Mg = (21.01 - 10.00)%

²⁶ Mg = 11.0%

3 0
4 years ago
Sugar cubes are placed in water. how will the mixture be affected by stirring the water, by breaking apart the sugar cubes, or b
tangare [24]
When the sugar cubes are <span>placed in water, then, the mixture will be affected by stirring the water. 
By stirring the water, the sugar cubes dissolve in water. The molecules of sugar cubes interact with water molecules in the jar. But when more sugar is added to the water, there comes a saturation point when no more sugar will be dissolved and it will settle down. Then, by raising the temperature the settled sugar will be dissolved too.</span>
6 0
3 years ago
Read 2 more answers
The proton has a mass of?
aliina [53]
The relative mass is 1
3 0
3 years ago
Other questions:
  • The half life for the radioactive decay of potassium- 40 to argon- 40 is 1.26 x 109 years. Suppose nuclear chemical analysis sho
    10·1 answer
  • The label on a container of margarine lists "hydrogenated vegetable oil" as the major ingredient. what is the result of adding h
    6·2 answers
  • A 10.0 kg crate is pushed with a horizontal force of 40 N. The crate moves at a constant velocity of 3.0 m/s. What is the value
    14·1 answer
  • What is the specific heat of a substance that absorbs 228 joules of heat when a sample of 706 g of the substance increases in te
    14·1 answer
  • Which sample of ethanol has particles with the highest average kinetic energy?
    8·2 answers
  • The density of honey is 1.42 g/mL. If you poured honey into a glass of water, would it sink to the bottom or float on top? Expla
    11·1 answer
  • What is TRUE of a mixture?
    8·2 answers
  • Mostly explaining isotopes?
    14·1 answer
  • LUNCH TIME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! MMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMMM
    7·2 answers
  • Which best describes species C?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!