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madreJ [45]
2 years ago
8

Please..................​

Chemistry
1 answer:
Aliun [14]2 years ago
6 0

Sorry so what I think u should do is ask your teach or look up on how to do this problem

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4. How many milligrams are in 5.25 x 10-13 kg?<br><br> the “-13” is an exponent
rusak2 [61]

5. 25 x 10⁻⁷mg

Explanation:

This is mass conversion from mg to kg;

The kg is a quantity of mass used to measure the amount of matter in a substance.

   Given mass = 5.25 x 10⁻¹³kg

The kilo-  is a prefix that denotes 10³

  therefore;

         1000g = 1kilogram

 the milli-  is a prefix that denotes 10⁻⁻³

       1000mg = 1g

Now that we know this, we can convert:

   5.25 x 10⁻¹³kg  x \frac{1000g}{1kg}  x \frac{1000mg}{1g}   =  5. 25 x 10⁻¹³ x 10⁶mg

      =  5. 25 x 10⁻⁷mg

learn more:

Conversion brainly.com/question/1548911

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8 0
3 years ago
Explain what the kinetic theory of matter states. Which state of matter has the LEAST kinetic energy and which state of matter h
alexandr1967 [171]

Answer: Solid

Solid particles have the least amount of energy, and gas particles have the greatest amount of energy. The temperature of a substance is a measure of the average kinetic energy of the particles. A change in phase may occur when the energy of the particles is changed. There are spaces between particles of matter.

Explanation:

3 0
3 years ago
Jeff has night vision goggles and can see people and animals even if it is pitch black outside. What type of electromagnetic wav
forsale [732]

Infrared radiation

Explanation:

The type of electromagnetic waves Jeff uses to make his goggles work are the infrared radiations.

Jeff is certainly using a night vision goggle to see in the dark . It senses infrared radiations

  • Infrared radiations are part of the electromagnetic spectrum.
  • Every hot objects gives off infrared radiations.
  • These googles have thermal imaging sensors that detects these radiations.
  • Naked eyes cannot see the radiations.
  • The heat emitted is a form of radiation called the infrared radiation.

learn more:

Electromagetic radiation brainly.com/question/6818046

#learnwithBrainly

7 0
3 years ago
Ca(hco3)2 molecular formula calculated​
GrogVix [38]

Answer:

C2H2CaO6

Explanation:

Ca same

H × 2

C × 2

O3 × 2

I hope this helps you :)

7 0
3 years ago
The number placed in front of a formula is called a coefficient. the small number within a chemical equation formula is called a
Rufina [12.5K]
Because coefficients numbers make the elements to be stable.
6 0
3 years ago
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