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ololo11 [35]
3 years ago
9

The system that works with respiratory system for the exchange of gases to take place is..?​

Chemistry
2 answers:
lakkis [162]3 years ago
6 0

Answer:

The respiratory system works with the circulatory system to provide this oxygen and to remove the waste products of metabolism. It also helps to regulate pH of the blood. Respiration is the sequence of events that results in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells.

Explanation:

hope it helps

Dominik [7]3 years ago
6 0

Answer:

Oxygon and Carbon are exchanged in the respiratory system hope this helps! :D

Explan

ation:

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How many moles are in 14.35 x 1022 molecules of H3PO4?
Irina18 [472]

Answer:

0.24mole

Explanation:

Given parameters:

Number of molecules  = 14.35 x 10²² molecules;

       Unknown = number of moles of H₃PO₄

 A mole of a substance is the quantity of matter that contains the avogadro's number of particles.

 This number is given as 6.02 x 10²³ particles. The particles can be atoms, molecules, protons, electrons e.t.c

          6.02 x 10²³ molecules is contained in 1 mole of any substance

          14.35 x 10²² molecules will contain:  \frac{1.435 x 10^{23} }{6.02 x 10^{23} }   = 0.24mole

7 0
3 years ago
Can someone please explain core and valence electrons in periods for me please​
Lena [83]

Answer:

The electrons of an atom are typically divided into two categories: valence and core electrons. Valence electrons occupy the outermost shell or highest energy level of an atom while core electrons are those occupying the innermost shell or lowest energy levels

Explanation:

i hope u get it :))

6 0
3 years ago
Double-replacement and acid-base reactions are examples of redox reactions. a. true b. false
ratelena [41]
<span>Double-replacement and acid-base reactions are examples of redox reactions.

</span><span>b. false</span>
7 0
3 years ago
K + Cl2 --&gt;_KCI<br> -<br> a<br> 2,3<br> b<br> 32<br> С<br> 2,2<br> 1,2<br> d
Goryan [66]

Answer:

b 32

Explanation:

6 0
3 years ago
hola genteee ayuda me pueden decir 5 propiedades físicas y 5 propiedades químicas del ácido sulfúrico porfa es urgente !
Alexus [3.1K]

Answer:

La respuesta está en la explicación.

Explanation:

Las propiedades físicas son las visibles y medibles que no afectan químicamente la sustancia en cuestión. Las propiedades químicas hacen alusión a la reactividad de la sustancia:

Propiedades físicas ácido sulfúrico:

Líquido a temperatura ambiente.

Densidad: 1.83g/mL

Punto de fusión: 10°C

Punto de ebullición: 337°C

Índice de refracción: 1.397

Propiedades Químicas:

Ácido Fuerte.

Oxidante Fuerte.

Miscible con el agua reaccionando exotérmicamente.

A temperaturas > 30°C produce vapores azufrados.

Estable en concentraciones menores al 98%

8 0
4 years ago
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