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ycow [4]
3 years ago
9

When an antimicrobial agent permanently denatures proteins thus preventing renaturation to their native states it is considered:

Select one: a. bacteriostatic b. bacterial lysis c. an inhibitor of growth d. bactericidal
Chemistry
1 answer:
Katen [24]3 years ago
7 0

Answer:

The correct option is d, bactericidal

Explanation:

Antimicrobial agent that kill bacteria are called bactericidal and hence, prevents the growth of bacteria.

Antimicrobial agent that slows the growth of the bacteria called bacteriostatic.

Bactericidal and bacteriostatic are types of antibiotics.

Bactericidal antibiotics act by inhibiting cell wall synthesis. Penicillin, cephalosporins, vanomycin, etc are some of bactericidal antibiotics.

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If a balloon containing 3000 L of gas at 39 C and 99 k Pa rises to an altitude where the pressure is 45.5 kPa and the temperatur
mihalych1998 [28]

Answer:

The new volume of the balloon will be 6046.28 L

Explanation:

Initial pressure (P1) = 99 kpa

initial volume (V1) = 3000 L

Initial temperature = 39 C = 39 + 273 = 312 K

Final pressure (P2) = 45.5 kpa

Final temperature = 16 C = 16 +273 = 289K

Final volume = ????

To calculate the final volume using the general gas equation

                  P1 V1 / T1  = P2 V2 / T2

make V2 the subject of the formular

                   V2 = 99000 ×3000× 289 / 45500×312

                   V2 = 85833000 /14196

                     V2 = 6046.28 litres

5 0
3 years ago
2. Incoming wastewater, with BOD5 equal to 200 mg/L, is treated in a well-run secondary treatment plant that removes 90 percent
Lesechka [4]

Answer:

10.8 ml

Explanation:

The BOD is an empirical test to determine the molecular oxygen used during a specified incubation period (usually five days), for the biochemical degradation of organic matter (carbonaceous demand) and the oxygen used to oxidise inorganic matter.

See attached file

5 0
3 years ago
Chemistry Conversion
kvv77 [185]

Answer:

Explanation:

193.02 times 9.55 it's going to be 1843.341

9.55= 191.20 milli

4 0
3 years ago
1.Why mixture of stone pebbles and water is considered a suspension? Write few properties of the suspension. How suspension diff
sergey [27]

Explanation:

1.A mixture of stone, pebbles, and water is an example of a suspension. Because the particle size is more than 1000nm.

Properties of suspensions:

Suspension is a heterogeneous mixture. The constituents of the mixture are clearly visible.

The particle size will be more than 1000nm. If the suspension is left undisturbed then the particles will settle down.

Properties of Colloids:

Whereas in colloidal solutions, the particle size is in between 1nm-1000nm.

The particles will never settle down in colloid.

They show the Tyndall effect.

2.The solubility of salt at 20^oC is 30. That means the maximum amount of salt that is present in 100 g of water is 30 g.

If the temperature of a saturated solution is increased then, its solubility increases or decreases based on the nature of the solute.

For example if we take sodium chloride salt ,then its solubility is not effected by the change in temperature.

For cerium sulphate salt if temperature increases, then its solubility in water  decreases.

For sugar (sucrose) its solubility increases with increase in temperature.

8 0
3 years ago
6) Mendeleev put the elements on the periodic table in the order of how
love history [14]

Answer:  Protons

Explanation:

7 0
2 years ago
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