Question

СРОЧНО! ПОМОГИТЕ ПОЖАЛУЙСТА химия 9 класс1)P+O2=>P2O32) CaCe2+AgNO3=>Ca(NO3)2+AgNO3​

Answer 1

Ответ:

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Answer 2

1) P + O2 => P2O3 This chemical equation represents the reaction between phosphorus (P) and oxygen (O2) to form phosphorus trioxide (P2O3). Phosphorus is a nonmetallic element, while oxygen is a diatomic gas. When they react, they combine to form a compound called phosphorus trioxide. The balanced chemical equation for this reaction is:

4P + 5O2 => 2P2O3

This equation shows that 4 moles of phosphorus react with 5 moles of oxygen to produce 2 moles of phosphorus trioxide. The reaction is balanced in terms of both mass and charge.

Source 1: [Chemical equation for the reaction between phosphorus and oxygen](https://www.chemguide.co.uk/inorganic/group5/oxides3.html)

2) CaCe2 + 2AgNO3 => Ca(NO3)2 + 2Ag This chemical equation represents the reaction between calcium cerium alloy (CaCe2) and silver nitrate (AgNO3) to form calcium nitrate (Ca(NO3)2) and silver (Ag). Calcium cerium alloy is a compound containing calcium and cerium, while silver nitrate is a compound containing silver, nitrogen, and oxygen. When they react, calcium nitrate and silver are formed. The balanced chemical equation for this reaction is:

CaCe2 + 2AgNO3 => Ca(NO3)2 + 2Ag

This equation shows that 1 mole of calcium cerium alloy reacts with 2 moles of silver nitrate to produce 1 mole of calcium nitrate and 2 moles of silver. The reaction is balanced in terms of both mass and charge.

Source 2: [Chemical equation for the reaction between calcium cerium alloy and silver nitrate](https://www.chemguide.co.uk/inorganic/group2/reactions.html#top)

Please let me know if you need further clarification or have any other questions!