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2 years ago

13

Please help Question 6: Types of Molecular Shapes (3 points) Identify the following molecular shapes. (0.5 points per answer) fo

r each letter

1 answer:

TEA [102]2 years ago

4 0

Answer:

o hbuvycuctxybu3hieht7ebithsifbsibcosfoh

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If you add a neutron to an atom how does it change ?

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Its atomic mass increases by 1

An isotope of that element is fotmed with mass differences by 1

Explanation:

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2 years ago

If a person is sterile, he or she is:

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1

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Sterile means sperm or eggs are not able to Technichaly Create or produce.

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3 years ago

A sample of propane (C3H8) has a mass of 0. 47 g. The sample is burned in a bomb calorimeter that has a mass of 1. 350 kg and a

Nady [450]

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

The specific heat has been defined as the amount of heat required to raise the temperature of 1 gram of substance by 1 degree Celsius.

The specific heat has been expressed as:

$q=mc\Delta T$

<h3 /><h3>Computation for the heat absorbed</h3>

The iron and calorimeter are in side the closed system. Thus, the energy released by the sample, has been equivalent to the energy absorbed by the calorimeter.

$q_{released}=q_{absorbed}\\
q_{released}=m_{calorimeter}\;c_{calorimeter}\;\Delta T$

The given mass of calorimeter has been, $m_{calorimeter}=1350\;\rm g$

The specific heat of the calorimeter has been, $c_{calorimeter}=5.82\;\rm J/g^\circ C$

The change in temperature of the calorimeter has been, $\Delta T=2.87^\circ \rm C$

Substituting the values for heat released:

$q_{released}= 1350\;\text g\;\times\;5.82\;\text J/\text g^\circ \text C\;\times\;2.87^\circ \text C\\
q_{released}=22,549.5\;\text J\\
q_{released}}=22.54\;\rm kJ$

The amount of heat released by the sample has been 22.54 kJ. Thus, option C is correct.

Learn more about specific heat, here:

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2 years ago

WILL MARK YOU THE BRAINLIEST IF YOU ANSWER THESE TWO QUESTION CORRECTLY :)

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i'm not exactly AMAZING at this but i did some research and this is what i think it is i'm also not in this grade but i tried.

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3 years ago

How was the plum pudding model different from models that came after it

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Plum-pudding model is different from the model that came after it as the Plum pudding model did not encounter the concept of nucleus it simply says compares atom with a pudding in which electrons are spread around as rasins in a pudding while the model that came after that is Rutherford's model explain that the atom that having nucleus that serves as a center of the atom.

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2 years ago