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Arturiano [62]
2 years ago
15

Freddy mixed 10 g of a powdery substance with 200 g of an acid solution. A bubbly solution weighing 205 g was formed. Which best

explains why the mass of the new product does not equal the mass of the reactants?
Question 2 options:

the other 5 grams weighed less in the acid


the other 5 grams created a percipitate (solid)


the other 5 grams were released as a gas


the other 5 grams changed colors
Biology
1 answer:
inysia [295]2 years ago
7 0
Option 3; the other grams were realeased as a gas
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Which of the following would most likely result in the greatest decrease in the rate of a chemical reaction ?
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3 years ago
What challenges would you expect scientists to face when growing plants in space? What challenges will the astronauts have with
DanielleElmas [232]

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the challenges they would expect to see is the plants not having water or air

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2 years ago
The eye is continuously bathed in a fluid secreted by the lacrimal gland which flows
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Inside the eye?
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3 years ago
Each ABO blood group is associated with the presence/absence of RBC antigens and the presence/absence of antibodies in the plasm
harina [27]

Answer:

a. Type O blood - No A or B antigens on RBCs-Anti-A antibodies in plasma-Anti-B antibodies in plasma

b. Type A blood - A antigen on RBCs- Anti-B antibodies in plasma

c. Type B blood - B antigen on RBCs- Anti-A antibodies in plasma

d. Type AB blood - A antigen on RBCs- B antigen on RBCs- Neither anti-A or anti-B in plasma

Explanation:

ABO blood grouping system represents multiple allelism which was discovered in humans by Karl Landsteiner. The blood group is determined by the presence or absence of A & B antigens and antibodies.

The 4 blood groups which exist in ABO system are O, A, B and AB. Also, allele A and B are co-dominant i.e. if they both will exist on the surface of an RBC then both will be equally expressed which implies that there will be no dominant or recessive allele.

Type O blood group has H antigen on the surface of RBC and has both the antibodies i.e. antibody A and B. The absence of antigens A and B makes it a universal donor.

Type A blood group has A antigen on RBC and has antibody B in the plasma.

Type B blood group has B antigen on RBC and has antibody A in the plasma.

Type AB blood group has both the antigens i.e. antigen A and B on RBC and does not have any antibody in the plasma which makes it a universal acceptor.

3 0
3 years ago
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