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
Leya [2.2K]
2 years ago
6

Cells of the immune system are able to respond to the

Chemistry
1 answer:
egoroff_w [7]2 years ago
5 0

Answer:

A) antigens present on the invaders

Explanation:

Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens

You might be interested in
What is the average rate of formation of i2? express your answer to three decimal places and include the appropriate units. view
Klio2033 [76]
Missing question:
Chemical reaction: H₂ <span>+ 2ICl → 2HCl + I</span>₂.
t₁ = 5 s.
t₂ = 15 s.
c₁ = 1,11 M = 1,11 mol/L.
c₂ = 1,83 mol/L.
rate of formation = Δc ÷ Δt.
rate of formation = (c₂ - c₁) ÷ (t₂ - t₁).
rate of formation = (1,83 mol/L - 1,11 mol/L) ÷ (15 s - 5 s).
rate of formation = 0,72 mol/L ÷ 10 s.
rate of formation = 0,072 mol/L·s.
3 0
3 years ago
How many moles are in 525 g of ammonia, NH3?<br> 8940.75 M<br> 0.03 M<br> 30.83 M
victus00 [196]

Answer:

30.83 M

Explanation:

17.03052 re in one mole. So, if you multiply it by 30.83, you will get 535 g of ammonia.

In fact, the detailed answer is 30.827009392549122.

3 0
2 years ago
Read 2 more answers
Consider the reaction between acetylene, c2h2, and oxygen in a welding torch: 2c2h2(g) + 5o2(g) → 4co2(g) + 2h2o(g) if 5.4 moles
fredd [130]
<span>                                      2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)
   from the reaction     2 mol                              4 mol
from the problem      5.4 mol                         10.8 mol

M(CO2) = 12.0 +2*16.0 = 44.0 g/mol
10.8 mol CO2 * 44.0 g CO2/1 mol CO2 = 475.2 g CO2 </span>≈480 = 4.8 * 10² g
Answer is  C. 4.8*10² g.
4 0
3 years ago
Read 2 more answers
Convert 63.3 kg to grams
Zepler [3.9K]

Answer:

63300

Explanation:

63300

5 0
2 years ago
Read 2 more answers
The box in the above picture is falling from the top of a building to the ground. Two major forces are acting on the box as it f
MAVERICK [17]

Answer:

I think it's B

Explanation:

apologies if I get this wrong

8 0
2 years ago
Read 2 more answers
Other questions:
  • What is paper chromatography? Calculate the Rr value of a colored dye that traveled 52 mm on a chromatography strip while the so
    11·1 answer
  • __________ ammonium compounds are less effective against gram-negative bacteria and more effective against gram-positive bacteri
    9·1 answer
  • Which of the following atoms has 4 valence electrons
    15·1 answer
  • True or false the three types of seismic waves are P eaves, S waves, and T waves
    10·1 answer
  • How does aspirin interact with other drugs
    8·1 answer
  • What mass of Fe(OH)3 is produced when 35 mL of 0.250 M Fe(NO3)3 solution is mixed with 55 mL of a 0.180 M
    12·1 answer
  • What are the two elements that are liquids at freezing?
    5·2 answers
  • What causes waves to occur?
    9·1 answer
  • Oi oi oi oi ewin <br> .................
    10·1 answer
  • NiSe2 + Ca3(PO4)2 = Ni3(PO4)2 + CaSe<br><br> balance please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!