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Jack is hitting a punching bag to build his muscle. His left fist gains a speed of 5.5 meters per second in 0.1 seconds from rest. The mass of his left fist is 1 kg. What is the magnitude of his acceleration during 0.1 seconds? What is the average net force applied to the fist?
When 5.00g of copper reacts with oxygen, the copper oxide product has a mass of 5.62g. What is the empirical formula of this copper oxide? MM Cu= 63.5, O= 16.0
A sample of helium gas occupies 945mL at 605 mmHg. For a gas sample at a constant temperature, determine the volume of helium at 745 mmHg?
A 2.35 g sample of KClO3 is reacted. How many mL of O2 gas is produced at a pressure of 740. mmHg and a temperature of 25 °C? 2KClO3 (s) → 2KCl (s) + 3O2(g)
What is the minimum number of conversions that need to be done across a peak to achieve a reproducibility (relative standard deviation) of less than 1% for repeated measurements of the same peak
Solutions need to have the ionization constants compared
clockwise direction around a circular track with a constant speed of 200 km/hr. if is at the southernmost end of the track then determine the velocity of the car?also express your answer in M/S
Give the basicity order? List from most to least basic. 3. Explain the basicity order in terms of resonance and inductive (polar) effects and solvation effects.
A combustion devise was used to determine the empirical formula for a compound that only contains C, H, and O. A 0.6349 g sample of the unknown produced
One of wavelength 434.2 nm to reach an intermediate level and a second to return to the ground state. What was the wavelength of the second photon emitted
What do the numbers on the y-axis represent , What does each curve on the graph represent and Which substances show increasing solubility with increasing temperature?
Question- Write a chemical equation showing the hydrolysis of ethanamide by water and HCl Use condensed structural formulas.
The inside fluid temperature is 223 degrees celsius while the outside fluid temperature is 57 degrees celsius. Calculate the heat lost by the tube per meter of length.
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