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3 years ago

Which of the following most likely describes the difference between the

Chemistry

1 answer:

nekit [7.7K]3 years ago

3 0

Answer:

D. A seed spread by wind might be light so that it can be carried by

the wind. A seed spread by animals might be hidden in a fruit that

animals would eat.

Explanation:

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who reported four “element” classifications, but included some substances that were combinations of elements rather than true el

kozerog [31]

Answer: Antoine Lavoisier.

He classified the elements into four groups: elastic fluids, nonmetals, metals and earths. Some of the called elementes were not really elements (light and heat). Others were compounds, e.g. hydrochloric acid.

7 0

3 years ago

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Predict the products of each reaction, and whether the solution at equilibrium will be acidic, basic, or neutral.1. P4O10 + 6H2O

77julia77 [94]

Answer:

For 1: The product is phosphoric acid and the solution is acidic in nature.

For 2: The product is sodium hydroxide and the solution is basic in nature.

For 3: The product is nitric acid and the solution is acidic in nature.

Explanation:

For the given options:

(1): When diphosphorus pentoxide reacts with water, it leads to the formation of phosphoric acid, which makes the solution acidic in nature.

The chemical equation for the reaction follows:

$P_4O_{10}+6H_2O(l)\rightarrow 4H_3PO_4(aq)$

(2): When disodium oxide reacts with water, it leads to the formation of sodium hydroxide, which makes the solution basic in nature.

The chemical equation for the reaction follows:

$Na_2O+H_2O(l)\rightarrow 2NaOH(aq)$

(3): When dinitrogen pentoxide reacts with water, it leads to the formation of nitric acid, which makes the solution acidic in nature.

The chemical equation for the reaction follows:

$3N_2O_5+3H_2O(l)\rightarrow 6HNO_3(aq)$

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3 years ago

Cl2 + 2na → 2nacl 1.5 moles of cl2 and 4.0 moles of na are combined and allowed to react. the limiting reactant will be ___(i)__

cricket20 [7]

Hope this helps you;):):

7 0

3 years ago

If energy cannot be created or destroyed, what happens to the kinetic and potential energy?

Julli [10]

Answer:

According to the law of conservation of energy, energy cannot be created or destroyed, although it can be changed from one form to another. KE + PE = constant. ... As the car coasts down the hill, it moves faster and so it's kinetic energy increases and it's potential energy decreases. hope this helps

Explanation:

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3 years ago

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What does the chemical formula CaCl, show about the compound it represents

xxTIMURxx [149]

It is Calcium chloride

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3 years ago