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olya-2409 [2.1K]
2 years ago
9

I have made a thermometer which measures temperature by the compressing and expanding of gas in a piston. I have measured that a

t 1000 C the volume of the piston is 30 L. What is the temperature outside if the piston has a volume of 5 L? What would be appropriate clothing for the weather? I
this is about boyle’s and charles law :)))
Chemistry
1 answer:
Scrat [10]2 years ago
6 0

Answer:

The temperature is 298.5 K, which corresponds to 0.50°C.

A jacket would be appropriate clothing for this weather.

Explanation: Hope this helps:)

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Which elements are metalloids ? Check all that apply
Degger [83]

Answer:

here is definition with example

8 0
3 years ago
Review the map that shows earthquake zones as yellow lines and active volcanoes as red dots. what pattern can you determine abou
aleksandr82 [10.1K]

A map that shows the location of volcanoes is called a Geologic Map. This kind of map contains information about the geological history and condition of volcanic sites.

<h3>What do Geologic Maps indicate?</h3>

Geologic maps indicate the following:

  • the location of volcanos
  • age of rock deposits found near the volcano
  • which volcanoes are active and those that aren't
  • types of rocks at these sites
  • faults fracture etc.

Note that the map specific to the question is unavailable hence the general response.

Learn more about geologic maps at:

brainly.com/question/2773541

3 0
2 years ago
When hot lava reaches seawater, the salts in the water react with steam to form gaseous hydrochloric acid. You are given an unba
qaws [65]
Cl⁻ + H₂O(g) = HCl(g) + OH⁻

w - it is percent chloride ions in solid sea salt (as a rule 55%)

m - it is the mass of sea salt

m(Cl⁻)=mw/100

m(Cl⁻)/M(Cl)=V(HCl)/V₀

mw/{100M(Cl)}=V(HCl)/V₀

m=100M(Cl)V(HCl)/{wV₀}  (<span>the mass of solid sea salt)</span>

V₀=22.4 L/mol
M(Cl)=35.45 g/mol

for example:
V(HCl)= 1.0 L
w=55%

m=100×35.45×1.0/{55×22.4}=2.88 g



7 0
3 years ago
Read 2 more answers
Which of the following corresponds to an alpha particle?
Karo-lina-s [1.5K]

Answer:

D. 4/2 He corresponds to an alpha particle.

8 0
2 years ago
Upon adding solid potassium hydroxide pellets to water the following reaction takes place: KOH(s) → KOH(aq) + 43 kJ/mol Answer t
nekit [7.7K]

Answer:

a) Warmer

b) Exothermic

c) -10.71 kJ

Explanation:

The reaction:

KOH(s) → KOH(aq) + 43 kJ/mol

It is an exothermic reaction since the reaction liberates 43 kJ per mol of KOH dissolved.

Hence, the dissolution of potassium hydroxide pellets to water provokes that the beaker gets warmer for being an exothermic reaction.

The enthalpy change for the dissolution of 14 g of KOH is:

n = \frac{m}{M}

<u>Where:</u>

m: is the mass of KOH = 14 g

M: is the molar mass = 56.1056 g/mol

n = \frac{m}{M} = \frac{14 g}{56.1056 g/mol} = 0.249 mol

The enthalpy change is:

\Delta H = -43 \frac{kJ}{mol}*0.249 mol = -10.71 kJ

The minus sign of 43 is because the reaction is exothermic.

I hope it helps you!

5 0
3 years ago
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