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
OLga [1]
3 years ago
8

an element has a metallic gray appearance. it also has the properties of both a metal and a nonmetal. in which section of the pe

riodic table indicated above would the element most likely be found?

Chemistry
1 answer:
irinina [24]3 years ago
6 0
If it has properties of metal and non metal it is considered a metalloid there are very few spots in which metalloids are located the spots I circled on a blank periodic tables are where the metalloids are located on an actual periodic table your only options are
boron(B) silicon(si) germanium(Ge) arsenic(As)antimony(Sb)tellurium(Te)astatine(At)those are the only places on the periodic table that has metalloids... I hope this helps

You might be interested in
PLEASE HELP!
svetoff [14.1K]

Answer:

period 3 and group 3

Explanation:

I'm saying group 3 because that is how I learnt it at school, but if you count it then it's in group 13.

8 0
2 years ago
Why is the cellulose part of human diet​
Luden [163]

Answer:

Cellulose stimulates the work of intestines and increases their discharge.

Explanation:

Cellulose is a polysaccharide made of glucose polymers, which build plant fibers. Because of this, the plants possess their firmness.

Humans do not digest cellulose because they do not possess certain enzymes, but it is useful for their digestion because it stimulates the work of the intestines.

Cellulose enhances intestinal peristalsis. Peristalsis is series of contractions that allow the progressive movement of food through the digestive tract.

4 0
2 years ago
What is the concentration of x2??? in a 0.150 m solution of the diprotic acid h2x? for h2x, ka1=4.5??10???6 and ka2=1.2??10???11
lutik1710 [3]
The first dissociation for H2X:
                        H2X +H2O ↔ HX + H3O
initial                0.15                     0      0
change             -X                     +X      +X
at equlibrium 0.15-X                  X        X
because Ka1 is small we can assume neglect x in H2X concentration
     Ka1      = [HX][H3O]/[H2X]
4.5x10^-6 =( X )(X) / (0.15)
X = √(4.5x10^-6*0.15) 
∴X = 8.2 x 10-4 m
∴[HX] & [H3O] = 8.2x10^-4
the second dissociation of H2X
        HX + H2O↔ X^2 + H3O
    8.2x10^-4          Y         8.2x10^-4
Ka2 for Hx = 1.2x10^-11
Ka2       = [X2][H3O]/[HX]
1.2x10^-11= y (8.2x10^-4)*(8.2x10^-4)
∴y = 1.78x10^-5
∴[X^2] = 1.78x10^-5 m


4 0
3 years ago
The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angle
scZoUnD [109]
<span>The unit cell of amazonite is made of three pairs of faces, each pair different from the others. The faces are oriented at angles to one another that are not 90 degrees. The type of crystal this is is triclinic.
Triclinic crystal system is one of the seven crystal systems, with three basis vectors. </span>
5 0
3 years ago
Describe how the air pressure on Earth affects the weather.
11111nata11111 [884]

Answer:  

As the pressure decreases, the amount of oxygen available to breathe also decreases. Atmospheric pressure is an indicator of weather. When a low-pressure system moves into an area, it usually leads to cloudiness, wind, and precipitation. High-pressure systems usually lead to fair, calm weather.

5 0
2 years ago
Other questions:
  • When bacteria are decomposing animal waste, the level of ___________ rises. phosphate nitrate nitrite dissolved oxygen ammonia t
    5·1 answer
  • Determine two complex numbers, (a+bi) and (c+di), where a and d are irrational numbers and b and c are rational number
    5·2 answers
  • Acid causes metals to<br><br>A) dissolve<br>B) corrode<br>C) ignite<br>D) combust
    14·1 answer
  • The tip of a match is ignited as it is struck against the matchbox. Why is this a chemical change? a.The color of the match tip
    9·2 answers
  • How does the quote "We are already far, so high! What? Are we really leaving these people down there?" contribute to the story?
    11·1 answer
  • What is the conversion of 1.8 kg to pounds?
    13·1 answer
  • 5.Calculate the number of moles of 18.0 dm3 of carbon monoxide (CO) at rtp.
    7·1 answer
  • Given the reaction below, how many grams of aluminum (Al) would be
    8·1 answer
  • Balance the following equation. <br> C + H2 + 02 → C2H60
    13·2 answers
  • 1)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!