3 years ago

What do element; atoms; molecule; chemical bond; compound; mixture; and substance have in common

Chemistry

1 answer:

sleet_krkn [62]3 years ago

7 0

They are all things you can do to elements on the periodic table?

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What is the atomic mass of an element that has 6 protons, 7 neutrons, and 6 electrons?

GREYUIT [131]

Answer:

Explanation:

proton plus neutron equal to atomic mass

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3 years ago

What is an ecosystem. A.It is a single plant and a single animal that live in given area B. it is a community of plants, animals

gavmur [86]

Answer:

B. it is a community of plants,animals and there physical surrounding.

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2 years ago

For a particular reaction, Δ=−111.4 kJ and Δ=−25.0 J/K.

vichka [17]

Answer:

$\Delta G =-103.95kJ$

Explanation:

Hello there!

In this case, since the thermodynamic definition of the Gibbs free energy for a change process is:

$\Delta G =\Delta H-T\Delta S$

It is possible to plug in the given H, T and S with consistent units, to obtain the correct G as shown below:

$\Delta G =-111.4kJ-(298K)(-25.0\frac{J}{K}*\frac{1kJ}{1000J} )\\\\\Delta G =-103.95kJ$

Best regards!

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3 years ago

Which of the following does not apply to water molecules?

serg [7]

Answer:

It is the last one.

Explanation:

Water molecules are polar, they have cohesive properties, and water is less dense when it is solid than when it is a liquid, that is why ice floats in liquid water. However, water is a very good solvent, it can dissolve many solids, including sugar, salt, and other hydrophilic substances.

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2 years ago

Use Hess's law to calculate AG° rxn using the following information.

PIT_PIT [208]

Answer:

AG rxn=+394.4 kJ

Explanation:

3 0

1 year ago