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tatyana61 [14]
3 years ago
14

How many significant figures are in 0.005439

Chemistry
2 answers:
Neko [114]3 years ago
5 0

Answer:

Number of Significant Figures: 4

The Significant Figures are 5 4 3 9

Explanation:

Agata [3.3K]3 years ago
5 0
Answer: There are 4 significant figures.

You don't count the three zeros before the 5439 as significant figures because the number is a decimal.
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What is the redox half equation for 3Ag2S + 2Al --> 6Ag + Al2, and identity which material is oxidized and which is reduced?
marta [7]

Answer:

Al is oxidized while Ag is reduced.

Explanation:

The complete molecular equation is;

3Ag2S + 2Al --> 6Ag + Al2S3

Oxidation half equation;

2Al ------> 2Al^3+ + 6e

Reduction half equation;

6Ag^+ + 6e -------> 6Ag

Overall redox reaction equation;

2Al + 6Ag^+ ----->2Al^3+ + 6Ag

Hence; Al is oxidized while Ag is reduced.

5 0
3 years ago
Which of the following is an organic moleclue ?
Doss [256]

Answer:

water

Explanation:

6 0
3 years ago
What is the relationship between temperature and kinetic energy?
m_a_m_a [10]

Answer:

Kinetic energy is the energy that an object has because of its motion. The molecules in a substance have a range of kinetic energies because they don't all move at the same speed. As a substance absorbs heat the particles move faster so the average kinetic energy and therefore the temperature increases.

6 0
3 years ago
Chlorine has two isotopes, 35Cl and 37Cl; 75.77 % of chlorine is 35Cl and 24.23 % is 37Cl. The atomic mass of 35Cl is 34.969 amu
storchak [24]

Answer:

35.4528731 amu

Explanation:

To appropriately get the atomic mass unit of chlorine, we can get the answer using the masses from the isotopes. This can be obtained as follows. What we do is that we multiply the percentage compositions by the masses.

Now let’s do this.

[75.77/100 * 34.969] + [24.23/100 * 36.966]

= 26.4960113 + 8.9568618 = 35.4528731

3 0
4 years ago
Read 2 more answers
A chlorine atom in its ground state has a total of seven electrons in orbitals related to the atom's third energy level. How man
goldenfox [79]

Answer:

Therefore we can say that the total number of electrons present in $ p - $ orbital of chlorine atoms is eleven.

Explanation:

4 0
2 years ago
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