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yan [13]
3 years ago
14

For each pair, predict which molecule has the greater molar entropy under the same conditions (assume gaseous species).c o 2, ca

rbon dioxide h 2 o, waterc o, carbon monoxide c o 2, carbon dioxide
Chemistry
1 answer:
larisa [96]3 years ago
8 0
I used to know this. I don't really remember but is used to know it. Im in 6th grade now
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Using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective sub
Lisa [10]
Sodium chloride because it contains the most reactive metal(sodium) and most reactive non-metal(chlorine).
6 0
3 years ago
Copper has average atomic mass of 63.546 amu. It's two isotopes are Cu-63 (which is 69.17% abundant and has a mass of 62.9296 am
garri49 [273]

Answer: 69.152% → 63^Cu

30.848% → 65^Cu

Explanation:

As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.

Simply put, an element's naturally occurring isotopes will contribute to the average atomic mass of the element proportionally to their abundance.

Explanation:

6 0
2 years ago
If the specific heat capacity of copper is 387 J/kg/°C, then how much energy is needed to raise the temperature of 400 g of copp
eduard

Answer:

Explanation:

mass = 400 grams * [1 kg/1000 grams] = 0.400 kg

c = 387 Joules / (oC * kg)

Δt = 55 - 30 = 25 oC

E = m*c * Δt

E = 0.4 * 387 * 25

E = 3870 Joules

5 0
3 years ago
What is the mass of oxygen in 1 mole of NaHCO3?
Serga [27]

Answer:

48.00

Explanation:

3 oxygen (15.99 x 3)= 48

3 0
3 years ago
BRAINLIEST AND 20 POINTS!<br><br> Guys, I literally have no idea.
yuradex [85]
.65 because the relationship between moles of zinc to moles of silver is 1:2. Just divide 1.30 by two to get .65
5 0
3 years ago
Read 2 more answers
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