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NEED HELP FAST All living and nonliving things are made up of a combination of ______________.ElementsLiquidsCrystalsOxygen
3.What do we call materialsthat let heat pass throughthem easily?Thermal conductorsThermal insulatorsTransparent4.Which of these is a goodthermal conductor?PlasticWoodSteel5.Which of these is a goodthermal insulator?SteelIronPolystyrene6.To save on heating bills, doyou think the roof of abuilding should be lined with...a thermal conductora thermal insulatornothing7.How does heat travel?From cold things to hotter thingsFrom hot things to colder thingsBetween things of the same temperature
Balance the equation: KL+Pb(NO3)2→PbL2+KNO3
Suppose that you are a scientist who studies climate changes. While examining the rings of tree trunks, you notice several very large tree rings. What can you conclude about the climate during those years?
a) sulphur
b) iron
c) ammonia
der
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Answer:
Ammonia is a compound.
Explanation:
A compound is composed of two or more separate elements. Ammonia is NH3, which happens to be two different elements.
cytoplasm by____
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Answer:
The type of RNA that contains the information for making a protein is called messenger RNA (mRNA) because it carries the information, or message, from the DNA out of the nucleus into the cytoplasm.
Answer:
Messenger RNA (mRNA)
Explanation:
Messenger RNA (mRNA), Molecules in cells that carries codes from the DNA in the nucleus to the sites of protein synthesis in the cytoplasm (the ribosomes)...
Hope This helps if not Then im Sorry XD
B. Rh
C. Hf
D. Co
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Answer: C
Explanation:
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Answer:
Mhmmm I Agree
Explanation:
Its Because I Strongly Agree
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Answer:
This reaction is spontaneous for temperature lower than 3722.1 Kelvin or 3448.95 °C
Explanation:
Step 1: Data given
ΔH = −320.1 kJ/mol
ΔS = −86.00 J/K · mol.
Step 2: Calculate the temperature
ΔG<0 = spontaneous
ΔG= ΔH - TΔS
ΔH - TΔS <0
-320100 - T*(-86) <0
-320100 +86T < 0
-320100 < -86T
320100/86 > T
3722.1 > T
The temperature should be lower than 3722.1 Kelvin (= 3448.9 °C)
We can prove this with Temperature T = 3730 K
-320100 -3730*(-86) <0
-320100 + 320780 = 680 this is greater than 0 so it's non spontaneous
T = 3700 K
-320100 -3700*(-86) <0
-320100 + 318200 = -1900 this is lower than 0 so it's spontaneous
The temperature is quite high because of the big difference between ΔH and ΔS.
This reaction is spontaneous for temperature lower than 3722.1 Kelvin or 3448.95 °C
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Answer:
Explanation:
Hello there!
In this case, according to the given chemical reaction, it is possible for us to realize that the 46.2 kJ of energy are given per mole of reaction, which are related to 3 moles of hydrogen; Thus, we can calculate the energy per mole of hydrogen as shown below:
Now, to calculate the total energy, we convert the grams to moles of hydrogen as shown below:
Best regards!