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Kruka [31]
2 years ago
10

Using PEP or PrEP can reduce the chances of becoming infected for a person exposed to HIV.

Chemistry
2 answers:
Elodia [21]2 years ago
7 0
True i hope this helps
Sergio039 [100]2 years ago
5 0

Answer:

trueeee

Explanation:

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How important is the resonance structure shown here to the overall structure of carbon dioxide?
Tcecarenko [31]

1. Resonance structures are a better description of a Lewis dot structure .

2. Best resonance structure is the one with the least formal charge.


<u>EXPLAINATION OF RASONANCE STRUCTURE OF CARBON DIOXIDE</u>

1.Carbon dioxide has three resonance structures .

2. The CO2 molecule has a total of 16 valence electrons ,

  1C = 4 electrons

  2O= 12 electrons

<u>three resonance structures for  CO2</u>

1. The atoms in all three resonance structures have full octets;

 structure 1 will be more stable because it has no separation of charge.

2. Structures 2 and 3 show charge separation caused by the presence of formal charges on both oxygen atoms.  

6 0
3 years ago
The standard free energy change in physiological conditions (G') for the reaction catalyzed by malate dehydrogenase in the citri
Papessa [141]

Answer: The actual value of \Delta G is -618 J/mol

Explanation:

Relation of ree energy change and equilibrium constant

\Delta G=\Delta G^0+2.303\times RT\times \log K_{eq}

where,

\Delta G = Free energy change

\Delta G^o = standard free energy change = +29 kJ/mol =

R = universal gas constant

T = temperature = 37^0C=(37+273)K=310K

K_{eq} = equilibrium constant = 1.02\times 10^{-5}

\Delta G=+29000J/mol+2.303\times 8.314J/Kmol\times 310K\times \log (1.02\times 10^{-5})

\Delta G=29000J/mol-29619J/mol=-618J/mol

The actual value of \Delta G is -618 J/mol

7 0
2 years ago
PLEASE HELP ME!!
yawa3891 [41]
B and i don’t need to explain it says it there hope it helps
7 0
2 years ago
Which statement is true concerning the reaction N(g) + N(g) → N2(g) + energy?
Nesterboy [21]

Answer:

A bond is formed and energy is released.

Explanation:

Given a reaction equation, the elements which we have on the left side of the arrow are called the reactants and the elements which we have on the right side are called the products.

In this exercise, the reactants are N(g) and N(g) and the products N2(g) and energy.

After the reaction took place, N(g) and N(g) disappeared and instead N2(g) was formed. We can conclude that a bond was formed between both N(g).

Also, in the products certain amount of energy was released (because we have it on the products side)

The correct option is ''A bond is formed and energy is released''

5 0
2 years ago
S + 6 HNO3 --&gt; H2SO4 + 6 NO2 + 2 H2O
garri49 [273]

#1

  • 2 mol of water is made when 6mol of HNO3 are consumed.

Let moles of water can be made be x

\\ \sf\longmapsto \dfrac{2}{6}=\dfrac{x}{28}

\\ \sf\longmapsto \dfrac{1}{3}=\dfrac{x}{28}

\\ \sf\longmapsto 3x=28

\\ \sf\longmapsto x\approx 9mol

#2

Let moles of water can be made be x

\\ \sf\longmapsto \dfrac{3}{2}=\dfrac{x}{76}

\\ \sf\longmapsto 2x=76(3)=228

\\ \sf\longmapsto x=114mol

3 0
2 years ago
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