Answer:
35.35 calories
Explanation:
A typical calorimetry problem
Q = m . C . ΔT
Q = 35 g . 0.101 cal/°C (35°C - 25°C) ⇒ 35.35 cal
The halogens (VIIA elements) all have seven valence electrons. All the halogens gain a single electron to fill their valence energy level. And all of them form an anion with a single negative charge.
Answer: f = 760 Hz
Explanation: speed = frequency · wavelength v = fλ.
frequency f = v/ λ = 380 m/s / 0.50 m = 760 Hz
Answer:
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Explanation: