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dimaraw [331]
3 years ago
11

when particles of matter are in direct contact and movement occurs in the substance due to convection, thermal energy transfers

in which state of matter?
Chemistry
1 answer:
liq [111]3 years ago
4 0

Thermal energy transfers in a solid state, due to convection, in metalic substances.

This is because the covalent bonds between the atoms are being broken and reformed again while the metal is experiencing stress. <em>covalent bonds store energy.  </em>

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Gala2k [10]

Answer:

Alright the very first thing you need to do is balance the equation:

2HCl + Na2CO3 -----> 2NaCl + CO2 + H2O

Now we need to find the limiting reactant by converting the volume to moles of both HCl and Na2CO3.

Volume x Concentration/molarity = moles

0.235L x 0.6 M = 0.141 moles / molar ratio of 2 = 0.0705 moles of HCl

0.094L x 0.75 M = 0.0705 moles /molar ratio of 1  = 0.0705 moles of Na2CO3

Since both of the moles are equal, it means the entire reaction is complete (while the identification of limiting reactant may seem like an unnecessary step, it's quite essential in stoichiometry, so keep an eye out) and there is no excess of any reactant.

Now we know that the product we want to calculate is aqueous so, following the law of conservation of mass, we should add both volumes together to calculate how much volume we could get for NaCl.

0.235 + 0.094 = 0.329L of NaCl

Now we apply the C1V1 = C2V2 equation using the concentration and volume of Na2CO3 because it's molar ratio is one to one to NaCl (You can also use HCL, but you have to divide their moles by 2 for the molar ratio)  and the volume we just calculated for NaCl.

(0.75M) x (0.094L) = C2 x (0.329L)

Rearrange equation to solve for C2:

<u>(0.75M) x (0.094L)</u>  =  C2

    (0.329L)

C2 = 0.214 M (Rounded)

<u>When the reaction is finished, the NaCl solution will have a molarity concentration of 0.214 M.</u>

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7 0
2 years ago
The process of gas converting to a liquid is called evaporation.<br><br> TRUE<br><br> FALSE
motikmotik
False. Because gas to a liquid is called condensation
6 0
3 years ago
I<br> 3. In words, explain what occurs in terms of electrons when<br> beryllium reacts with oxygen
Drupady [299]

Explanation:

On the whole, the metals burn in oxygen to form a simple metal oxide. Beryllium is reluctant to burn unless it is in the form of dust or powder. Beryllium has a very strong (but very thin) layer of beryllium oxide on its surface, and this prevents any new oxygen getting at the underlying beryllium to react with it

8 0
3 years ago
What is the product of radioactive decay symbolized by y called?
shepuryov [24]

Answer:

(B) Gamma wave

Explanation:

no explanation required.

7 0
1 year ago
Aluminum reacts with hydrochloric acid according to the equation:
s344n2d4d5 [400]

Answer:

I think it is aluminombecause it just makes sense

8 0
3 years ago
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