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
nekit [7.7K]
3 years ago
11

The isotope 65Cu2+ has how many electrons and how many protons?

Chemistry
2 answers:
Brilliant_brown [7]3 years ago
8 0

29p,36n,27e

i think is the answer

grigory [225]3 years ago
4 0
29 of each is the correct answer
You might be interested in
using the soubility curve what is the solubilityof nh4cl in 10 mL of water at a temperature of 60 degrees Celsius​
lukranit [14]

Answer:

Please, see attached two figures:

  • The first figure shows the solutility curves for several soluts in water, which is needed to answer the question.

  • The second figure shows the reading of the solutiblity of NH₄Cl at a temperature of 60°C.

  • Answer: <u>5.5g</u>

Explanation:

The red  arrow on the second attachement shows how you must go vertically from the temperature of 60ºC on the horizontal axis, up to intersecting curve for the <em>solubility</em> of <em>NH₄Cl.</em>

From there, you must move horizontally to the left (green arrow) to reach the vertical axis and read the solubility: the reading is about in the middle of the marks for 50 and 60 grams of solute per 100 grams of water: that is 55 grams of grams of solute per 100 grams of water.

Assuming density 1.0 g/mol for water, 10 mL of water is:

            10mL\times 1.0g/mL=10g

Thus, the solutibily is:

      10gWater\times 55gNH_4Cl/100gWater=5.5gNH_4Cl

5 0
3 years ago
What is the correct formula for Heptarsenic Tetrabromide
harina [27]
Hepta is seven and tetra is four, so option c is your answer
3 0
4 years ago
2. Sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4 Na + O2 --&gt; 2 Na2O. Whe
Anastaziya [24]
5 gig hi iifvjifhnkgcghgggggggg
4 0
3 years ago
Read 2 more answers
Sodium Chloride is an ionic compound. Its molar mass is 58.44g. One formula unit of NaCl consists of one____, whose chemical sym
saul85 [17]

Answer: One formula unit of NaCl consists of one cation, whose chemical symbol is Na^+ and one anion whose chemical symbol is Cl^-

Explanation:

For formation of a neutral ionic compound, the charges on cation and anion must be balanced. The cation is formed by loss of electrons by metals and anions are formed by gain of electrons by non metals.  

The cation is formed by the metal sodium which forms  Na^+ and the anion is formed by non metal chlorine which forms Cl^-.

For a formula unit of sodium chloride,  the charges have to be balanced , thus the valencies of ions are exchanged and the neutral compound result. Thus

Na^+ and  Cl^- combine to form neutral NaCl

5 0
3 years ago
How many significant figures are in the following number? 0.000485
aliina [53]

Answer:

4 or 3

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • For the reaction A + B − ⇀ ↽ − C + D A+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing
    5·2 answers
  • Which of the following is most likely to use coal<br> as fuel?<br> Stove<br> Airplane<br> Factory
    11·1 answer
  • The smallest particle of matter that retains the chemical properties of carbon is a carbon:
    9·1 answer
  • In a hemoglobin molecule, what element is central to all the structures
    7·1 answer
  • Can someone explation for me ? I can’t understand. <br> Thanks
    7·1 answer
  • Differences between plant and animal cells, other than their vacuoles
    9·1 answer
  • If you have 2.0 moles of sodium chloride (NaCl), what is its mass in grams?
    8·1 answer
  • A gas has a pressure of 3 atm at 350°C. What will its pressure be at 250°C? The volume and amount of gas is constant. Hint: Conv
    12·1 answer
  • 23.<br> What would happen to the substance in the jar if energy was added?
    13·1 answer
  • ​​​​​​Elements on the far right of the periodic table are
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!