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Olegator [25]
3 years ago
10

What is a safety guide line?

Chemistry
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:

A safety guide lines are rules and regulations that are made to make sure place is safe and conducive for everyone.

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The nucleus of isotope A of an element has a larger mass than isotope B of the same elemen
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B

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since isotopeA has bigger mass number

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What are household items that are made up from carbon?
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811.68 J of energy are used on a 95g chunk of unknown metal. Calculate the resulting temperature change if the specific heat of
Ivan

Answer:

16 °C

Explanation:

Step 1: Given data

  • Provided heat (Q): 811.68 J
  • Mass of the metal (m): 95 g
  • Specific heat capacity of the metal (c): 0.534 J/g.°C

Step 2: Calculate the temperature change (ΔT) experienced by the metal

We will use the following expression.

Q = c × m × ΔT

ΔT = Q/c × m

ΔT = 811.68 J/(0.534 J/g.°C) × 95 g = 16 °C

6 0
3 years ago
What’s the mass of 2.80 mol of ca
Ludmilka [50]

Answer:

112.22 g

Explanation:

mass = no. of moles x atomic mass

From the periodic table, we can see the atomic mass of Ca is 40.078.

Therefore,

mass = 2.80 x 40.078

= 112.22g (corrected to 2 decimal places.)

3 0
3 years ago
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