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kvasek [131]
2 years ago
7

____ help scientists understand processes in the natural world by providing simpler representations of those processes.

Chemistry
1 answer:
Marina CMI [18]2 years ago
7 0

Answer:

Models help scientists understand processes in the natural world by providing simpler representations of those processes.

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A reaction that realeases energy in the form of heat or light.
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Exothermic reaction releases energy in the form of heat or light

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How many grams of hydrogen are needed to produce 1.80 g of water
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Dalton incorporated the law of conservation of mass into his atomic theory by asserting that
Feliz [49]

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a. atoms are indivisible. ... atoms can not be destroyed in chemical reactions.

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2 years ago
3 Cu + 8HNO3 g 3 Cu(NO3)2 + 2 NO + 4 H2O
liubo4ka [24]

24.25 moles of NO can be produced using 97 moles of HNO3.

<h3>What is balanced chemical equation?</h3>

Equal numbers of atoms from various elements are present in both the reactants and the products in balanced chemical equations. Varied elements' atom counts in the reactants and products of unbalanced chemical equations are different.

3 Cu + 8HNO3 g → 3 Cu(NO3)2 + 2 NO + 4 H2O

The number of moles consumed can be calculated using comparing with coefficients in the balanced reaction .

So , from above eq we get that 8 moles of HNO3 are consumed to make 2 moles of NO.

⇒  8 HNO3⇔2 NO

⇒ 1 HNO3⇔ 1/4 NO

This means that for each mole of HNO3 produces 1/4 moles of NO.

So , for 97 moles of HNO3 , \frac{1}{4}  *97 moles of NO can be made,

So, total moles of NO made are 24.25 moles.

Lean more about balanced reactions here brainly.com/question/26694427

#SPJ10

3 0
2 years ago
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1.50μm2. Convert this to square meters.
mars1129 [50]
Based on the standards of units conversion, to convert from micrometer to meter, we multiply by 10^-6.
Since we there is a square (10^2) to consider, then to convert from micrometer squared to meter squared, we will multiply by (10^-6)^2 as follows:
1.5 <span>μm2 = 1.5 x (10^-6)^2 = 1.5 x 10^-12 meter sqaures</span>
6 0
2 years ago
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