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3 years ago

Science question: Could you have seasons without revolution? Why or why not?

Chemistry

1 answer:

marusya05 [52]3 years ago

4 0

Answer:

Explanation:

The Earth would not have seasons if there is no revolution because the temperatures would not change.

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How does the earth give us what we call and night

Elza [17]

Answer:

the Earth rotates on an imaginary line called its axis and different parts of the planet are facing towards the Sun or away from it. it takes 24 hours for the world to turn all the way around, and we call this a day.

Explanation:

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3 years ago

What are the covalent bonds that form between atoms of different electronegativities called?

Bingel [31]

The covalent bonds that form between atoms of different electronegativities called polar bonds. Just like in water. The cause of polarity in water molecules is because of the high electronegativity difference between oxygen and hydrogen.

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4 years ago

Read 2 more answers

Which substance forms a 0.10 M aqueous solution with the highest pH? a. NaNO2 b. NaNO3 c. HNO3 d. NH4NO3 e. FeCl3

Mila [183]

D. NH4N03 Hope it helps

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3 years ago

Is baking soda an acid, base, or neutral

sergey [27]

Answer:

Baking soda is an alkaline, or base, substance. This means that when we dissolve baking soda in water, it forms an alkaline solution. For example, a 0.1 molar solution of baking soda has a pH of around 8.3. Lemon juice contains citric acid and has a pH of around 3.

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3 years ago

(a) Write the dissolution reaction for solid Na2CO3 below. (Use the lowest possible coefficients. Include states-of-matter under

Andreas93 [3]

Answer:

For a: The chemical equation for the dissolution of sodium carbonate is $Na_2CO_3(s)\rightarrow Na_2CO_3(aq.)$

For b: The net acid-base reaction is $CO_3^{2-}(aq.)+H_2O(l)\rightarrow OH^-(aq.)+HCO_3^-(aq.)$

Explanation:

For a:

Dissolution reaction is defined as the reaction in which a solid compound gets dissolved in water to form aqueous solution.

The chemical equation for the dissolution of sodium carbonate follows:

$Na_2CO_3(s)\rightarrow Na_2CO_3(aq.)$

Ionization reaction is defined as the reaction in which an ionic compound dissociates into its ions when dissolved in aqueous solution.

The chemical equation for the ionization of sodium carbonate follows:

$Na_2CO_3(aq.)\rightarrow 2Na^+(aq.)+CO_3^{3-}(aq.)$

For b:

Now, the anion formed which is $CO_3^{2-}$ reacts with water to form conjugate acid.

The chemical equation for the reaction of anion with water follows:

$CO_3^{2-}(aq.)+H_2O(l)\rightarrow OH^-(aq.)+HCO_3^-(aq.)$

Hence, the net acid-base reaction of the anion formed and water is written above.

3 0

3 years ago