3 years ago

True or false: Objects that are neutrally charged have no electrical charges present.

Chemistry

1 answer:

labwork [276]3 years ago

3 0

False, they have a balance between positive and negitive characters. 6 protons, 6 electrons

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Oxygen difluoride is a hazardous, highly explosive gas used as a propellant. A sample of this compound weighing 0.432 grams is a

dimulka [17.4K]

Answer:

Percentage composition of oxygen = 29.69%

Percentage composition of fluorine = 70.37

Explanation:

Given:

Mass of compound = 0.432 grams

Mass of oxygen = 0.128 grams

Find:

Percentage composition of oxygen

Percentage composition of fluorine

Computation:

Percentage composition of oxygen = [0.128/0.432]100

Percentage composition of oxygen = 29.69%

Percentage composition of fluorine = [(0.432 - 0.128)/0.432]100

Percentage composition of fluorine = 70.37

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2 years ago

Which statement best explains how weather is related to the water<br> cycle?

ladessa [460]

Answer:

Increased evaporationof water vapour from sea or land will increase rainfall

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2 years ago

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Which of the following are found inside the nucleus? Select all that apply.

katrin [286]

Neutron is the answer. you’re welcome bro

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2 years ago

3. Burns from boiling water can be severe, caused by the transfer of energy from the boiling water to the

Free_Kalibri [48]

Answer:

Q = 3937.56 J

Explanation:

Heat transferred due to change in temperature is given by :

$Q=mc\Delta T$

c is the specific heat of water, c=4.18 J/g-°C

We have, m = 15 g, $T_i=100^{\circ} C\ \text{and}\ T_f=37.2^{\circ} C$

So,

$Q=15\times 4.18\times (37.2-100)\\Q=-3937.56\ J$

Hence, 3937.56 J of heat is transferred.

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3 years ago

What is the equilibrium expression for the reatcion bellow<br><br> 2SO3(g)<=>O2(g)+2SO2(g)

Luda [366]

Answer:

[O2(g)][SO2(g)]^2/[SO3(g)]^2

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3 years ago