1 year ago

Which property to put in which

1 answer:

6 0

In the Proton category: symbol p, and +1 charge
In the Neutron category: symbol n, 0 charge
In the Electron category: symbol e, -1 charge

You might be interested in

How many sigma and pi bonds in propionic bond

Ierofanga [76]

Propanoic acid formula is ch ch 2 so it has 8 bonds

7 0

2 years ago

A student was asked to find the density of an unknown object. The student found that the mass of the object was 35.49 g. The stu

marusya05 [52]

Answer:

4.29 /mL

Explanation:

density= mass/volume

8 0

1 year ago

When 1.365 g of anthracene, C14H10, is combusted in a bomb calorimeter that has a water jacket containing 500.0 g of water, the

luda_lava [24]

<h3>The enthalpy of combustion per mole of anthracene : 7064 kj/mol(- sign=exothermic)</h3><h3>Further explanation </h3>

The law of conservation of energy can be applied to heat changes, i.e. the heat received/absorbed is the same as the heat released

Q in = Q out

Heat can be calculated using the formula:

Q = mc∆T

Heat released by anthracene= Heat absorbed by water

Heat absorbed by water =

$\tt Q=500\times 4.18\times 25.89=54110.1~J$

mol of anthracene (MW=178,23 g/mol)

$\tt \dfrac{1.365}{178.23}=0.00766$

The enthalpy of combustion per mole of anthracene :

$\tt \Delta H=-\dfrac{Q}{n}=\dfrac{54110.1}{0.00766}=-7063981.7~J/mol\approx -7064~kJ/mol$

8 0

1 year ago

Compare and contrast the way waves transmit energy and the way particles transmit energy

Maksim231197 [3]

<span>Waves transfer energy through vibration. just like electromagnetic waves, energy is transferred through vibrations of electric and magnetic fields. In sound waves, energy is transferred through vibration of air particles or particles of a solid through which the sound travels. In water waves, energy is transferred through the vibration of the water particles. While particles transfer energy through conduction and convection.</span>

6 0

2 years ago

Which techniques would be best for separating a colloid mixture but would not work well with solutions? Check all that apply.

kotegsom [21]

Answer:

b, c, f,

Explanation:

5 0

1 year ago

Read 2 more answers