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Rzqust [24]
3 years ago
11

Balance the equation below Fe, Fe+ 02

Chemistry
1 answer:
Katena32 [7]3 years ago
5 0
2 Fe2O5-> 4 Fe+ 5 O2
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All of the following statements about different elements are true EXCEPT: Group of answer choices Krypton is one of the noble ga
seropon [69]

Sulfur is an element of the periodic table that is not considered a metalloid.

<h3>What is sulfur?</h3>

Sulfur is a chemical element of the periodic table that has the following characteristics:

  • Atomic number 16
  • S symbol
  • Sulfur is classified as a nonmetal
  • It has a yellow color

<h3>What are metalloids?</h3>

Metalloids are a set of chemical elements of the periodic table that are characterized by having an intermediate behavior between metals and non-metals, in terms of ionization energies and binding properties.

It is not easy to distinguish them from true metals. They conduct electrical current better than non-metals, but they are not good conductors like metals. In addition, they are usually very varied in their shape and coloration.

The list of metalloids includes the following elements:

  • Boron (B)
  • Silicon (Si)
  • Germanium (Ge)
  • Arsenic (As)
  • Antimony (Sb)
  • Tellurium (Te)
  • Polonium (Po)

Learn more about periodic table in: brainly.com/question/11155928

3 0
2 years ago
A person's blood type is determined by the presence and absence of specific antigens on the cell membrane. Which of these would
sukhopar [10]

Answer:

C - no antibodies

Explanation:

I dont think there is any blood type without antibodies

5 0
3 years ago
A very simple assumption for the specific heat of a crystalline solid is that each vibrational mode of the solid acts independen
MatroZZZ [7]

Answer:

4.7 kJ/kmol-K

Explanation:

Using the Debye model the specific heat capacity in kJ/kmol-K

c = 12π⁴Nk(T/θ)³/5

where N = avogadro's number = 6.02 × 10²³ mol⁻¹, k = 1.38 × 10⁻²³ JK⁻¹, T = room temperature = 298 K and θ = Debye temperature = 2219 K  

Substituting these values into c we have

c = 12π⁴Nk(T/θ)³/5  

= 12π⁴(6.02 × 10²³ mol⁻¹)(1.38 × 10⁻²³ JK⁻¹)(298 K/2219 K)³/5

= 9710.83(298 K/2219 K)³/5

= 1942.17(0.1343)³

= 4.704 J/mol-K

= 4.704 × 10⁻³ kJ/10⁻³ kmol-K

= 4.704 kJ/kmol-K

≅ 4.7 kJ/kmol-K

So, the specific heat of diamond in kJ/kmol-K is 4.7 kJ/kmol-K

7 0
3 years ago
Heat that flows by conduction is the transfer of thermal energy between substances in contact. What must occur forth
White raven [17]
One system must have higher kinetic energy than the other system
8 0
3 years ago
Read 2 more answers
A student measures the length and mass of an object records the link is 45.2 cm convert distance measurement to the correct SI b
horrorfan [7]

In science, physical quantities like length, weights etc are measured in units of metric or International System of units.

Some importance units are as follows:

1. Meter (m) for length.

2. Liter (L) for volume.

3. Gram (g) and kilogram (kg) for mass.

4. Degree Celsius (oC) for temperature.

5. Second for (s) time.

Given that the length of an object = 45.2 cm

SI unit of length is m

100 cm = 1.0 m

Therefore  

45.2 cm * 1 .0 m/100 cm

= 0.452 m  


4 0
3 years ago
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