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2 years ago

Which formula id correctly paired with its name? A. MgSO↓ = magnesium chlorine

Chemistry

1 answer:

Nostrana [21]2 years ago

4 0

D. CuCl2 copper(2)chloride

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Calculate the molecular weights for NH3 and SF6.

nevsk [136]

Hi there,

NH3 has the weight of 17.03 grams, and SF6 has the weight of 146.06 grams

so in total, there is 163.09 grams

Hope this helps :P



4 0

2 years ago

Why is the renewable energy resource you chose is negative?

frez [133]

Answer:

There’s a high need for energy storage and are very expensive. Renewable energy is also not always available because some need sun while others need wind.

Explanation:

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2 years ago

I NEED HELP NOW 17

andrew11 [14]

2. B. Weathering breaks rocks into minerals, and plants die and decay.
3. D. sand
4. B. silt
5. B. sand
Hope this helps!

8 0

2 years ago

Read 2 more answers

A 0.150-kg sample of a metal alloy is heated at 540 Celsius an then plunged into a 0.400-kg of water at 10.0 Celsius, which is c

Zarrin [17]

Answer:

$C_{alloy}=0.497\frac{J}{g\°C}$

Explanation:

Hello there!

In this case, according to this calorimetry problem on equilibrium temperature, it is possible for us to infer that the heat released by the metal allow is absorbed by the water for us to write:

$Q_{allow}=-(Q_{water}+Q_{Al})$

Thus, by writing the aforementioned in terms of mass, specific heat and temperature, we have:

$m_{alloy}C_{alloy}(T_{eq}-T_{alloy})=-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})$

Then, we solve for specific heat of the metallic alloy to obtain:

$C_{alloy}=\frac{-(m_{water}C_{water}(T_{eq}-T_{water})+m_{Al}C_{Al}(T_{eq}-T_{Al})}{m_{alloy}(T_{eq}-T_{alloy})}$

Thereby, we plug in the given data to obtain:

$C_{alloy}=\frac{-(400g*4.184\frac{J}{g\°C} (30.5\°C-10.0\°C)+200g*0.900\frac{J}{g\°C}(30.5\°C-10.0\°C)}{150g(30.5\°C-540\°C)} \\\\C_{alloy}=0.497\frac{J}{g\°C}$

Regards!

3 0

2 years ago

Process of transformation of CH3CH2CH2CH2CL to CH3CH(OH)CH(OH) CH3

egoroff_w [7]

Answer:

Prefixes for carbon chain length are

1 carbon = meth

2 carbon = eth

3 = prop

4 = but

5 = pent

6 = hex

7 = hept

8 = oct

9 = non

10 = dec

Explanation:

4 0

2 years ago