3 years ago

Why is agar medium used in Petri dishes?

Chemistry

1 answer:

Roman55 [17]3 years ago

4 0

Answer:

C is the correct answer.

Explanation:

Agar provides a solid growth surface for the bacteria, upon which bacteria reproduce until the distinctive lumps of cells.

You might be interested in

if you administering an oral acetaminophen dose of 320.mg from a bottle of 32.0 mg/ ml, how many mililitters of the solution do

Yuri [45]

10 milliliters are needed

7 0

3 years ago

Given the two reactions PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq), K3 = 1.89×10−10, and AgCl(aq)⇌Ag+(aq)+Cl−(aq), K4 = 1.25×10−4, what is the

Sergio [31]

Answer:

$1.2\times 10^{-2}$

Explanation:

The given reactions are:

PbCl2(aq)⇌Pb2+(aq)+2Cl−(aq) $K_3 = 1.89\times 10^{-10}$

AgCl(aq)⇌Ag+(aq)+Cl−(aq) $K_4 = 1.25\times 10^{-4}$

Required reaction is:

PbCl2(aq)+2Ag+(aq)⇌2AgCl(aq)+Pb2+(aq)

$K_f = \frac{K_3}{K_4^2}\\=\frac{1.89\times 10^{-10}}{1.25\times 10^{-4}}^2\\=1.2\times 10^{-2}$

4 0

3 years ago

Vertical columns in the periodic table indicate what information? . . . A.. periods. . . B.. liquids. . . C.. synthetic elements

kozerog [31]

The answer is D. groups and families

8 0

3 years ago

Read 2 more answers

Which reaction below represents a balanced, double replacement chemical reaction? A) C2H5OH + 3O2 → 2CO2 + 3H2O B) Rb2O + Cu(C2H

guajiro [1.7K]

Option B. <span>Rb2O + Cu(C2H3O2)2 → 2RbC2H3O2 + CuO is the correct answer. HOPE IT HELPS</span>

8 0

3 years ago

Read 2 more answers

When it is water, what state is it solid, liquid or gas?

Mama L [17]

ANSWER:

~~~~~~~~~~~

LIQUID

~~~~~~~~~~~

HOPE THIS HELPS!!!

≠GoodLuck

3 0

3 years ago