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timofeeve [1]
3 years ago
10

MULTIPLE CHOICE QUESTION

Chemistry
1 answer:
Tanzania [10]3 years ago
3 0

Answer:

the oxidation number of those elements is 2 because some of them are molecules

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A 4.7g sample of ethanol is burned in a calorimeter containing 95.8 mL of water. If the initial temperature of the water is 29.1
Anna11 [10]

Answer:

Anywhere you go, I'll go

Shadows in the camera light

And you don't wanna take it slow, so don't

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I wanna believe

Hit you with some truth

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I can't even lie

You and me got chemistry

Got, got chemistry

Got chemistry

Feel it when you're close to me

And out of reach

And in between

We got la la la, lots of good vibrations

We got la la la, we got la la la

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Got, got chemistry

Got chemistry

You and me got, you and me got

You and me got chemistry, got, got chemistry,

Got chemistry

Feel it when you're close to me

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Ohh we got chemistry

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8 0
2 years ago
when copper is bombarded with high energy electron x rays are emitted.Calculate the energy(in joule) associated with photons if
kakasveta [241]
The answer that i got was three
 i redid it and got some answer like 4.62 x1014<span> Hz</span>
3 0
3 years ago
Identify the products in the equation below (the “I” is Iodine—to differentiate capital “I” from lowercase “l”)
Inessa [10]

Answer : The products are Silver sulfide, (Ag_2S) and Sodium iodide, (NaI).

Explanation :

The given balanced chemical reaction is,

2AgI+Na_2S\rightarrow Ag_2S+2NaI

From the given balanced reaction, we conclude that the 2 moles of silver iodide react with the 1 mole of sodium sulfide to give product as 1 mole of silver sulfide and 2 moles of sodium iodide.

In a chemical reaction, reactants are represent on the left side of the right-arrow and products are represent on the right side of the right-arrow.

Therefore, in a chemical reaction the products are Silver sulfide and Sodium iodide.


5 0
3 years ago
Calculate the mass of 6 moles of H2O
RUDIKE [14]
<span>6mole of H2O contains 18×6 g=108 g</span>
8 0
3 years ago
Read 2 more answers
Most elements are ____________. The _____________ elements on the left of the stair-step line on the ______________ of Elements
Vlada [557]

Answer:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately

Explanation:

metals, 88 , periodic table , luster , heat, electricity , thin, right, opposite , appearance , luster  , malleable , ductile, opposite , shiny, moderately Is the answer.

(Hope this helps can I pls have brainlist (crown)☺️)

4 0
2 years ago
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