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Colt1911 [192]
3 years ago
11

How are up warped mountains formed

Chemistry
1 answer:
gulaghasi [49]3 years ago
5 0
They reveal elongate belts of folded and thrust faulted marine sedimentary rocks, volcanic rocks and silvers of ancient ocean floor.
i hope this helps..
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A sample of 14.5 g of sodium bicarbonate (NaHCO3) was dissolved in 100 ml of water in a coffee-cup calorimeter with no lid by th
Ann [662]

Answer:

The ΔH of the reaction is + 12.45 KJ/mol

Explanation:

Mass of water= 100ml = 100g. (You should always assume 1cm3 of water as 1g)

heat capacity of water = 4.18 Jk-1 Mol-1

Change in temperature = (19.86 - 25.00) = -5.14 K (This is an endothermic reaction because of the fall in temperature)

Molar mass of NaHCO3 = 84 g/mol

Mole of NaHCO3 = 14.5 / 84 = 0.173 mol

Step 1 : Calculate the heat energy (Q) lost by the water.

            Q = M x C x ΔT

            Q = -100 x 4.18 x (-5.14)

            Q = 2148.5 joules

            Q = 2.1485 K J

Step 2: Calculating the ΔH of the reaction?

          ΔH = Q / number of moles of NaHCO3

          ΔH = 2.1485 / 0.173

          ΔH = 12.42 KJ/mol

3 0
3 years ago
Can someone please help me on the second quick Check!!!!
alexgriva [62]
#1 fossils paragraph 2
8 0
3 years ago
Read 2 more answers
-
Dovator [93]

Answer:

5 × 10^-4 L

Explanation:

The equation of the reaction is;

2KClO3 = 2KCl + 3O2

Number of moles of KClO3 = 13.5g/122.5 g / mol = 0.11 moles

From the stoichiometry of the reaction;

2 moles of KClO3 yields 3 moles of O2

0.11 moles of KClO3 yields 0.11 × 3/2 = 0.165 moles of oxygen gas

From the ideal gas equation;

PV= nRT

P= 85.4 × 10^4 KPa

V=?

n= 0.165

R= 8.314 J K-1 mol-1

T= 40+273 = 313K

V= 0.165 ×8.134 × 313/85.4 × 10^4

V=429.4/85.4 × 10^4

V= 5 × 10^-4 L

3 0
3 years ago
What actions can you take to reduce your impact on the environment?
CaHeK987 [17]

Answer:

Use energy more efficiently. Producing electricity and natural gas and delivering it to your door generates greenhouse gas emissions. ...

Install renewables. ...

Conserve water. ...

Reduce, reuse, recycle. ...

Travel less. ...

Consider near sourcing. ...

Ship goods more efficiently.

Completely turn off equipment like televisions and stereos when you're not using them.

Choose energy-efficient appliances and light bulbs.

Save water: some simple steps can go a long way in saving water like, like turning off the tap when you are brushing your teeth or shaving.

3 0
3 years ago
Read 2 more answers
2. Calculate the density of a metal that occupies 17.75 cm and has a mass of 342.93 g. [D = m/V]
satela [25.4K]

Answer:

19.32

Explanation:

the density is given by the mass over volume

the mass In this case is 342.93 and the volume is 17.75

d=342.93g/17.75cm

=19.32g/cm

i hope this helps

3 0
3 years ago
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