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12-11-2020
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Please help asap and I will help back by giving brainliest and helping on anything

Please help asap and I will help back by giving brainliest and helping on anything class=

Respuesta :

21-11-2020

Answer:

the 3rd one is Multible and the 4th one is understanding and exsplaing text structures

Explanation:

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Please help, the questions are now attached

Given the balanced equation representing a reaction: CH4(g) + 2O2(g) --> 2H2O(g) + CO2(g) + heat Which statement is true about energy in this reaction? (1) T

Given the reaction: Mg(s) + 2 AgNO3(aq)--> Mg(NO3)2(aq) + 2 Ag(s) Which type of reaction is represented? (1) single replacement (3) synthesis (2) double repl

Which terms are used to identify pure substances? (1) an element and a mixture (2) an element and a compound (3) a solution and a mixture (4) a solution and a c

Which element is a brittle solid with low conductivity at STP? (1) sulfur (3) argon (2) sodium (4) aluminum

At STP, 1.0 liter of helium contains the same total number of atoms as (1) 1.0 L of Ne (3) 0.5 L of Rn (2) 2.0 L of Kr (4) 1.5 L of Ar

At STP, which sample contains the same number of molecules as 11.2 liters of CO2(g) at STP? (1) 5.6 L of NO2(g) (3) 11.2 L of N2(g) (2) 7.5 L of H2(g) (4) 22.4