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
svet-max [94.6K]
3 years ago
7

How many atoms are present in 65.39 g of zinc?

Chemistry
1 answer:
klio [65]3 years ago
3 0
<span>Avogadro's number represents the number of units in one mole of any substance. This has the value of 6.022 x 10^23 units / mole. This number can be used to convert the number of atoms or molecules into number of moles.

 65.39 g Zn ( 1 mol / 65.38 g ) ( </span>6.022 x 10^23 atoms / 1 mol ) = 6.023x10^23 atoms Zn
You might be interested in
An object has a negative charge if its atoms what
jonny [76]

Answer:

An object has a negative charge if it's atoms have more electrons. On the other hand if an object had more protons, then it would have a positive charge.

Hope this helps!!

6 0
3 years ago
Based on their electrons dot diagrams, what is the formula for the covalently bonded compound
Luda [366]

Answer:

Nitrogen, the next nonmetal, has 5 electrons in the valence shell, so it needs to combine with 3 hydrogen atoms to fulfill the octet rule and form a stable compound called ammonia (NH3).

5 0
2 years ago
A student performs an acid-base titration experiment to determine the amount of ascorbic acid in different brands of juice. Whic
Mice21 [21]

Answer:

idn Mann nnnnnnnn . .....mmmmm mmmm aaaaaaa it's a

8 0
2 years ago
Define aqua regia short answer<br><br><br>boreeeeeee​
larisa [96]

Answer:

Aqua regia is a mixture of nitric acid and hydrochloric acid, optimally in a molar ratio of 1:3. Aqua regia is a yellow-orange fuming liquid, so named by alchemists because it can dissolve the noble metals gold and platinum, though not all metals.

Explanation:

3 0
2 years ago
Read 2 more answers
I will give BRAINIEst please!!! help meeee omg
Alexxandr [17]

Answer:

(a)57.48 percent (b) 29.45 percent

Explanation:

copper(II) bromide is 29.45 percent copper and 71.54 percent bromine. so the first element percentage composition is always the percentage composition of the compound.

that goes same with sodium hydroxide. it  is 57.48 percent sodium, 40 percent oxygen, and 2.52 percent hydrogen.

4 0
3 years ago
Other questions:
  • Discuss the reason for the presence of large number of organic compounds
    6·1 answer
  • When N2(g) reacts with H2(g) to form NH3(g), 92.2 kJ of energy are evolved for each mole of N2(g) that reacts. Write a balanced
    14·1 answer
  • Which law states that the volume of a gas is proportional to the miles of the gas when pressure and temperature are kept constan
    6·1 answer
  • The population of the world is: increasing decreasing no longer changing
    9·1 answer
  • How many calories are needed to raise the temperature of 25 grams of water form 50°C to 70°C. The specific heat of water is
    6·2 answers
  • Brainliest if answered in the next 5m
    9·2 answers
  • Which statement is true?
    5·2 answers
  • Balance CH3CHO + O2 → CO2 + H2O
    15·1 answer
  • if the pressure, volume, and the number of moles of a gas are known, which is needed to calculate the universal gas constant fro
    6·2 answers
  • Describe how elements of different electronegativities can share electrons unequally, leading to the formation of a polar covale
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!