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rusak2 [61]
3 years ago
10

What are some vocab terms for exothermic

Chemistry
1 answer:
solmaris [256]3 years ago
4 0
decalescent energy-absorbing endothermal heat-absorbing endoergic.

Hope this helps!
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WTer freezes at 0degree Celsius. The weather forecast predicts a low temperature overnight of 5 degree Celsius. How many more de
Mariana [72]
5 degrees because five -  5=0 which is where you need to get to
7 0
3 years ago
Read 2 more answers
Resonance structures are not real. An individual resonance structure does not accurately represent the structure of a molecule o
tatiyna

Answer:

True

Explanation:

Resonance is a concept in chemistry that describes bonding in polyatomic molecules or ions whose structure cannot be efficiently described by a single Lewis structure. Individual resonance structures do not actually exist, that is, they are not real. None of the contributing resonance structures can be said to adequately represent the molecule or ion. However, the hybrid of all the possible resonance structures of the molecule or ion gives a holistic representation of the exact structure of the molecule or ion.

4 0
4 years ago
For the reaction N2(g) + 3H2(g) <->2NH3(g), what will happen if hydrogen gas was removed from the mixture?
OlgaM077 [116]
There will be a shift towards the reactants because the system will try to increase the amount of hydrogen. 
7 0
3 years ago
What is the specific heat capacity of copper metal if 25.00 g loses 18 °C, when the metal is placed in 15 g of water and the wat
Marina CMI [18]

The specific heat capacity of copper metal : 0.390 J/g °C

<h3>Further explanation</h3>

Given

25 g metal

Δt metal = 18°C

15 g water

Δt water = 2.8 °C

Required

The specific heat capacity of copper metal

Solution

Q out = Q in

Q releases by metal = Q absorbed by water

m.c.Δt metal = m.c.Δt water(c water = 4.184 J/g °C)

25 x c x 18 = 15 x 4.18 x 2.8

c = 0.390  J/g °C

3 0
3 years ago
2 C4H10 + 13 O2--&gt; 8 CO2 + 10 H2O
AleksAgata [21]

Answer:

4.14 x 10²⁴ molecules CO₂

Explanation:

2 C₄H₁₀ + 13 O₂ --> 8 CO₂ + 10 H₂O

To find the number of CO₂ molecules, you need to start with 100 grams of butane (C₄H₁₀), convert to moles (using the molar mass), convert to moles of CO₂ (using coefficients from equation), then convert to molecules (using Avagadro's number). The molar mass of C₄H₁₀ is calculated using the quantity of each element (subscript) multiplied by the number on the periodic table. The ratios should be arranged in a way that allows for units to be cancelled.

4(12.011g/mol) + 10(1.008 g/mol) = 58.124 g/mol C₄H₁₀

100 grams C₄H₁₀          1 mol C₄H₁₀             8 mol CO₂          
--------------------------  x  ----------------------  x  ---------------------  
                                        58.124 g              2 mol C₄H₁₀          

    6.022 x 10²³ molecules
x  ------------------------------------  =  4.14 x 10²⁴ molecules CO₂
              1 mol CO₂

7 0
3 years ago
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