In the reaction A + B + C + D, what are the reactants?

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:

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Shadows in the camera light

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You know what I'm talkin' about

Hit you with some truth

You're like a dream

I wanna believe

Hit you with some truth

When we're together

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

You and me got chemistry

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

And out of reach

And in between

Ohh we got chemistry

Feel it when you're close to me

And out of reach

And in between

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8 0

3 years ago

Which of the following organisms would NOT be in the first trophic level of an energy pyramid?

faust18 [17]

dog!

this is because the first energy comes from plants bc they can make their own food— therefore, energy :)

7 0

3 years ago

Read 2 more answers

2. Calculate the mass of 3.47x1023 gold atoms.

lapo4ka [179]

3.47 x $10^{23}$ atoms of gold have mass of 113.44 grams.

Explanation:

Data given:

number of atoms of gold = 3.47 x $10^{23}$

mass of the gold in given number of atoms = ?

atomic mass of gold =196.96 grams/mole

Avagadro's number = 6.022 X $10^{23}$

from the relation,

1 mole of element contains 6.022 x $10^{23}$ atoms.

so no of moles of gold given = $\frac{3.47 X 10^{23} }{6.022 X 10^{23} }$

0.57 moles of gold.

from the relation:

number of moles = $\frac{mass}{atomic mass of 1 mole}$

rearranging the equation,

mass = number of moles x atomic mass

mass = 0.57 x 196.96

mass = 113.44 grams

thus, 3.47 x $10^{23}$ atoms of gold have mass of 113.44 grams

3 0

3 years ago

Solid magnesium has mass of 1300g and a volume of 743cm . what's the density of magnesium?

Lilit [14]

D = m / V

d = 1300 g / 743 cm³

d = 1.749 g/cm³

3 0

3 years ago

Group 17 is called the halogen family, and the group to its right is called the noble gases. How are the elements in these group

Firlakuza [10]

Answer: they all have 7 electrons they have different atom sizes

Explanation: hope it helps

7 0

3 years ago