A balloon is filled with 3.50 L of water at 24.0°C. What is the volume of the water at 307 K?

Chemistry

1 answer:

Svetllana [295]3 years ago

3 0

Answer:

what is the volume of the water at 307 k?

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P4+O2=P2O3 What’s the balance of this equation?

Natasha_Volkova [10]

Explanation:

P₄+O₂=P₂O₃; non-balanced

P₄+O₂=2P₂O₃; to add '2' on the right side; non-balanced

P₄+3O₂=2P₂O₃. to add '3' before O₂ in the left side; balanced

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3 years ago

) Which direction does thermal energy flow in the following diagram? *

Karo-lina-s [1.5K]

Answer:

the heat flows from the hand to the ice cream

Explanation:

we produce body heat therefore it moves to the ice cream also there is no possible way the heat could move from the ice cream because the ice cream is cold

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2 years ago

All substances are made from some 100 different types of atoms which combine with each other in various ways true or false

Svetllana [295]

Answer:

True

Explanation:

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4 years ago

In which reaction does the oxidation number of hydrogen change? In which reaction does the oxidation number of hydrogen change?

dedylja [7]

Answer: The correct answer is $2Na(s)+2H_2O(l)\rightarrow 2NaOH(aq.)+H_2(g)$

Explanation:

Oxidation number is defined as the number which is given to an atom when it looses or gains electron. When an atom looses electron, it attains a positive oxidation state. When an atom gains electron, it attains a negative oxidation state.

Oxidation state of the atoms in their elemental state is considered as 0. Hydrogen is present as gaseous state.

For the given chemical reactions:

Reaction 1: $2HClO_4(aq.)+CaCO_3(s)\rightarrow Ca(ClO_4)_2(aq.)+H_2O(l)+CO_2 (g)$