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
Usimov [2.4K]
3 years ago
6

Copper has 29 protons, 34 neutrons, and 29 electrons. what is the atomic number of copper?

Chemistry
1 answer:
liberstina [14]3 years ago
3 0
Lt will be 29 
http://www.chemicalelements.com/elements/cu.html
here is the link to cheek 
good luck .
You might be interested in
PLEASE HELP DUE SOON> WILL MARK BRAINLIEST 50 POINTS
Rainbow [258]
Methane CH4
ethane C2H6
propane C3H8
Butane C4H10
pentane C5H12
8 0
2 years ago
Read 2 more answers
One of the most difficult solar energy design problems to solve is:
Sonja [21]
I'm not sure but i would say C.storing the heat energy.
6 0
3 years ago
Read 2 more answers
A piece of mental with a mass of 106 g is placed in a 50 mL graduated cylinder.The volume rises from 20 mL to 31 mL. What is the
garik1379 [7]

Answer:

9.64g/mL

Explanation:

Given parameters:

Mass of the metal  = 106g

Volume of cylinder = 50mL

Volume difference  = 31mL  - 20mL  = 11mL

Unknown:

Density of the metal  = ?

Solution:

To find the density of the metal, we use;

 Density  = \frac{mass}{volume}  

 Density  = \frac{106}{11}   = 9.64g/mL

8 0
2 years ago
Which of the following is insoluble in water?
bija089 [108]

Answer:

I think Is A

Explanation:

5 0
3 years ago
Which liquids would cause the largest decrease in mass of a potato stick
riadik2000 [5.3K]

Answer:

distilled water I guess !

Just a guess though

If you find this useful, please mark my answer as the brainliest.

Explanation:

If you find this useful, please mark my answer as the brainliest.

distilled water

Explanation:

Some students investigated osmosis in raw potato sticks. The students measured the mass of three potato sticks using an electronic balance. The students left each potato stick in one of the three different liquids for 5 hours:i. distilled water. ii. dilute sodium chloride solution. iii. concentrated sodium chloride solution. After 5 hours they measured the mass again and calculated the change in mass. 1. Predict which of the liquids would cause the largest decrease in mass of a potato stick. 2. After the experiment, the students noticed that the potato stick with the lowest mass was soft and floppy. Explain why the potato stick had become soft and floppy. 3. The students followed the same experimental procedure with boiled potato sticks and found no overall change in mass in any of the solutions. Suggest why the mass of the boiled potato sticks remained the same.

3 0
2 years ago
Other questions:
  • Indicate the number of protons, neutrons, and electrons in each of the following species: 15N7, 33S16, 63Cu29, 84Sr38, 130Ba56,
    13·1 answer
  • Which characteristic of atoms is the basis for the order on the Periodic Table?
    12·2 answers
  • Which statement best describes the direction of heat flow by conduction between two samples of the same material?
    11·2 answers
  • A decrease is the concentration of nitrogen monoxide (blank#1) between NO and H2 molecules. The rate of the forward reaction the
    10·1 answer
  • What are the 6 types of chemical reactions?
    5·2 answers
  • An iron bar at 200c is placed in thermal contact with an identical iron bar at 120c in an isolated system
    12·2 answers
  • Name three things that are Not matter and why not
    14·1 answer
  • The first season of Stranger Things consists of eight episodes. Each episode is approximately
    10·1 answer
  • When 0.250 moles of a gas is placed in a container at 298K, it exerts a pressure of 93kPa. What is the volume of the container?
    11·1 answer
  • Which of the following is an example of a connection between the hydrosphere and the
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!