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
Liono4ka [1.6K]
2 years ago
13

What is a concave structure

Chemistry
1 answer:
Bess [88]2 years ago
6 0
A concave<span> surface, </span>structure<span>, or line. tr.v. con·caved, concaving, con·caves. 
hope that helped</span>
You might be interested in
What element is found in liver and is needed to prevent anemia or tired blood.
DochEvi [55]


The element found in the liver that helps prevent anemia is iron.

Iron is an essential element for blood production. Close to 70% of the body's iron is found in the red blood cells. In the red blood cells it is a vital ingredient of hemoglobin, the red pigment that gives blood its red color. In the muscle cells, iron is found as myoglobin.

Iron is stored mostly in the liver as ferritin or hemosiderin.

When iron stores are finished or exhausted, the condition is called iron depletion. When the shortage of iron is severe, it results in a condition known as iron deficiency anemia whereby the red blood cells do not have enough hemoglobin.



3 0
3 years ago
If 4.50 g of (nh4)2so4 is dissolved in enough water to form 250. ml of solution, what is the molarity of the solution?
natima [27]
The molarity of a solution is the number of moles of a substance in one liter of that substance. 
The molar mass of ammonium sulfate (NH4)2SO4 is 132.14 grams/mole
Calculate the moles of ammonium sulfate:
(4.50 grams)/(132.14 grams/mole) = 0.0341 moles of ammonium sulfate
convert mL to Liters 250. mL becomes 0.250 liters
Take the number of moles over the number of liters
0.0341 moles / 0.250 liters = 0.136 molar or 0.136M = molarity of the solution
8 0
3 years ago
How are the cells of the bicep muscle similar to the cells of the heart muscle?
Brums [2.3K]

Answer:

I believe it's D

Explanation:

they both are worked a lot and it makes the most sense.

4 0
3 years ago
Take it before its gone​
MaRussiya [10]
Hello my friend thank you
8 0
3 years ago
Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of
dsp73
The first thing we need to do here is to recognize the unit of molarity and the units of the given percentage of nitric acid.

Molarity is mol HNO3 / L of solution. This is our aim

The given percentage is 0.68 g HNO3/ g solution

multiplying this with density to convert g solution into mL solution and dividing with the molecular weight of HNO3 (63 g/mol) to convert g HNO3 to mol. Therefore we obtain

0.016 mol/ mL or 16.23 mol/ L (M)

6 0
3 years ago
Other questions:
  • I don’t know it A is correct please tell me the right answer
    5·2 answers
  • Why is a sodium potassium pump called an electrogenic?
    6·2 answers
  • Mole ratio of co2 carbonate to water
    14·1 answer
  • Which quantity can vary among atoms of the same element?
    7·1 answer
  • Which level of organization describes the tropical savanna
    15·2 answers
  • Balance this equation C6H14(g) + O2(g) → H2O(g) + CO2(g)
    7·1 answer
  • Find mass of 4.5 moles of co2​
    14·1 answer
  • Which has more atoms, 1 moles of barium atoms or 2 moles of carbon atoms?
    11·2 answers
  • How much of a 10 M solution is needed to make 1 liter of a 1M solution?
    15·1 answer
  • Which statement best describes the role of oxygen in cellular respiration?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!