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
professor190 [17]
3 years ago
5

Why does the second row of the periodic table not have a d block section

Chemistry
1 answer:
Dmitry [639]3 years ago
7 0

Answer:

Explanation:

There is only room for eight electrons in the second electron shell, so there can only be eight elements in this period, and no room for another section.

You might be interested in
There is a homogeneous mixture of 3 solids: Sand, salt, and candle wax.
anastassius [24]

Answer:

Because mass is neither created nor destroyed, so the wax can not just disappear.

Explanation:

5 0
3 years ago
What is MOST likely to be TRUE about most forensic scientists?
jeka94
They collect all the evidence for cases
7 0
3 years ago
ITS TALKING ABOUT PHOTOSYNTHESIS
Xelga [282]
The circulatory system
8 0
2 years ago
Write the chemical equation for the formation of HI from the single, isolated H and I atoms.
mart [117]

Answer:

H2 + I2 → 2 HI.

Explanation:

Hydrogen iodide is a diatomic gas which can be readily formed from the direct combination of the elements involved which is hydrogen and iodine. Both elements can be combined by irradiating the mixture with an electromagnetic radiation that has a wavelength which is equal to that needed to break the iodine molecule bond between the two iodine atoms

7 0
3 years ago
Cellulose could provide an abundant and cheap form of glucose for humans. Why is cellulose not a source of nutrients for humans?
mojhsa [17]

Answer:

Option (c).

Explanation:

Cellulose is one of the most important carbohydrate of the plant that provide structural framework to the plant cells. Cellulose is made of the monomer of the glucose that are linked through the beta glycosidic linkages.

Although cellulose contains large number of glucose but it cannot be used as the nutrient source for humans. Humans and other vertebrates lacks the enzyme cellulase that is required for the digestion of cellulose. Cellulose cannot be broken down in the human body.

Thus, the correct answer is option (c).

8 0
3 years ago
Other questions:
  • How many moles of stearic acid are contained in 0.25 mL of a hexane solution
    8·1 answer
  • Cindy runs 2 kilometers every morning. She takes 2 minutes for the first 250 meters, 4 minutes for the next 1,000 meters, 1 minu
    14·2 answers
  • A 1.0-ml volume of seawater contains about 4.0 3 10212 g of gold. the total volume of ocean water is 1.5 3 1021 l. calculate the
    14·1 answer
  • A sample of solid NH 4HS is placed in a closed vessel and allowed to equilibrate. Calculate the equilibrium partial pressure (at
    10·1 answer
  • Which of the following compounds would contain a total of three carbon atoms? A. 1-butene B. Propane C. 2-triene D. Heptane
    12·2 answers
  • Ocean life is changing due to<br>This is happening because<br>This is causing<br>because​
    12·1 answer
  • A 1.0 kg ball is thrown into the air and initial velocity of 30 mi./s how high into the air did the ball travel
    8·1 answer
  • What is the chemical formula for Fluorine trisulfide ?
    13·1 answer
  • What kind of reaction is photosynthesis?
    14·2 answers
  • Specialized periodicals in which scientists publish the results of their works are called
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!