2 years ago

What is the value of the charge on an ion with 28 protons and 26 electrons?

1 answer:

7 0

Ok, don't quote me but I think it would be a positive charge because the number of protons is bigger than the number of electrons

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Which expressions are equivalent to 4(4a + 5) ? 3 answers

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2 years ago

A sample of nitrogen is initially at a pressure of 1.7 kPa, a temperature of -10 C and a volume of 7.5 m3. Then the volume is de

zhannawk [14.2K]

Answer:

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Explanation:

To solve this problem, we can use the Combined Gas Laws:

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$\begin{array}{rcl}\dfrac{1.7 \times 7.5 }{263.15} & = & \dfrac{p_{2} \times 3.8}{200}\\\\0.0485 & = & 0.0190p_{2}\\p_{2} & = & \textbf{2.6 kPa}\\\end{array}\\\text{The new pressure of the gas is \boxed{\textbf{2.6 kPa}}}$

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2 years ago

11. Power can be defined as (2 points)

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the energy required to do work

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