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melisa1 [442]
4 years ago
5

What is the ideal pH level for your blood?

Chemistry
1 answer:
sp2606 [1]4 years ago
7 0
The ideal pH level for our blood is 7
Below 7 is acidic
Above 7 alkaline or basic
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The two naturally occurring isotopes of copper are copper-63 and copper-65. how many neutrons are in one atom of copper-65? 29 3
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It's 36. Since copper has 29 protons you do 65-29=36
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Why does nuclear fusion occur in stars but not on Earth?
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C.

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Explanation:

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3 years ago
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6. A balloon filled with air has a volume of 3.25 L at 30°C. It is placed in a freezer at
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T₂ = 263 K

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Explanation:

Step 1: Given data

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  • Initial volume (V₁): 3.25 L
  • Final temperature (T₂): -10 °C
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Step 2: Convert the temperatures to Kelvin

We will use the following expression.

K = °C + 273.15

T₁: K = 30°C + 273.15 = 303 K

T₂: K = -10°C + 273.15 = 263 K

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V₁/T₁ = V₂/T₂

V₂ = V₁ × T₂/T₁

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3 years ago
How many significant figures are in 11.005 g​
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Answer:

Number of Significant Figures: 5

The Significant Figures are 1 1 0 0 5

Explanation:

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