All categories

3 years ago

Food can spoil very quickly. Which methods are used to minimize the reactions that allow bacteria and fungi to grow?

Chemistry

2 answers:

dem82 [27]3 years ago

7 0

Answer: preservatives and low temperature

Explanation:

Oduvanchick [21]3 years ago

3 0

Answer:

preservatives and low temperature

You might be interested in

After a big game, you put your water bottle inside the refrigerator. The next

12345 [234]

Mostly and for what I would say is A

6 0

3 years ago

How does thermal energy affect the three states of matter??

Ivenika [448]

An increase in thermal energy, changes the state of matter from solid to liquid to gas.

8 0

4 years ago

Two unknown molecular compounds were being studied. A solution containing 5.00 g of compound A in 100. g of water froze at a low

Shtirlitz [24]

Answer:

Compound B.

Explanation:

The freezing point depression is a colligative property. It depends on the number of particles (moles) present in the solution.

$\Delta T_{\text{f}} = K_{\text{f}} b$

where b is the molal concentration

$b = \dfrac{\text{moles of solute}}{\text{kilograms of solvent}}\\\\n = \dfrac{\text{mass}}{\text{molar mass}} = \dfrac{m}{M}$

If m is constant (5 g), then

$n \propto \dfrac{1}{M}$

The compound with the greater molar mass has fewer moles and therefore fewer particles to depress the freezing point.

That must be Compound B, because Compound A has the lower freezing point.

7 0

3 years ago

Using the potential given below, calculate the activity of cl^- in 1M KCl solution.

MissTica

Answer:

Explanation:

E° (calomel electrode) = 0.268 v

E( calomel electrode, 1M KCl) = 0.280 v

For calomel electrode

$E = E^0 _( Hg^+/Hg ) - \frac{.059}{2} \times log( a_{cl^-} )^2$

$.280 = .268 - \frac{.059}{2} \times log( a_{cl^-} )^2$

$.012= - \frac{.059}{2} \times log( a_{cl^-} )^2$

$log( a_{cl^-})^2= - .4067$

$a_{cl^-_}$ = 0.626 .

3 0

3 years ago

An arrhenius acid has

m_a_m_a [10]

Answer:

Explanation:

An Arrhenius acid increases the number of H+ ions in solution. They are the only positive ions in the solution.

5 0

4 years ago