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Con ayuda de un compañero balancea las siguientes ecuaciones químicas en tu
cuaderno e identifiquen si se trata de una reacción de síntesis, descomposición o
sustitución. Expliquen su respuesta.
1. H. CO, + NaCl → Na, CO, + HCI
2. NaCl(ac) + AgNO3(ac) - NaNO3(ac) + AgCl(s)
3. KCIO, → KCI + O2
4. Sodio en estado sólido que reacciona con una molécula diatómica de oxígeno para formar
el compuesto Na, O, que es un sólido.
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Revisa tus ecuaciones con tus compañeros, pide asesoría a tu profesor

out of these options:

ability to burn paper

pure sodium reacting violently with water

the boiling point of water

helium does not tend to react with anything

i would say this is a physical property:

helium does not tend to react with anything

why? :

i said helium does not tend to react with anything because well, it reacts to ! but ability to burn paper, pure sodium reacting violently with water, & the boiling point of water are chemical or

physical properties: the properties of a substance that can be observed without changing the chemical makeup of the substance

chemical properties: properties of a substance relating to the chemical nature and reactivity of the substance

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

im doing test rn im going with 2 but ill give answer if itss wrong,   : )