3 years ago

What is an exotoxin?

1 answer:

8 0

Exotoxin is a toxin secreted by bacteria. exotoxin can cause damage to the host by destroying cells or disrupting normal cellular metabolism

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2A(g) + B(l) ⇌ 3C(aq) + D(s)

makvit [3.9K]

Answer:

[(0.75)^3(0.25)]÷[(0.50)^2(0.75)]

Explanation:

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3 years ago

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nordsb [41]

Answer:

The ratio of the number of atoms of gold and silver in the ornament is 197 : 1080.

Explanation:

Let the mass of silver ornament be x.

Mass of gold polished on an ornament = 1% of x= 0.1 x

Moles of silver = $\frac{x}{108 g/mol}$

Number of atoms = $Moles\times N_A$

Where : $N_A$ = Avogadro number

Moles of gold = $\frac{0.1x}{197 g/mol}$

Silver atoms = $\frac{x}{108 g/mol}\times N_A$

Gold atoms = $\frac{0.1x}{197 g/mol}\times N_A$

The ratio of the number of atoms of gold and silver in the ornament:

$=\frac{\frac{0.1x}{197 g/mol}\times N_A}{\frac{x}{108 g/mol}\times N_A}$

= 197 : 1080

3 0

3 years ago

One of the ingredients used to make bread is yeast, a type of microorganism. This may seem odd, to use a microorganism as an ing

Shalnov [3]

The answer would be B.

4 0

3 years ago

Read 2 more answers

Someone explain what to do here…thanks.

umka21 [38]

Answer:

The answer is 900 000m.

This is because km is 3 times greater than a meter.

6 0

3 years ago

Does this question make sense or am I going mad?

postnew [5]

I think that is right

5 0

3 years ago