Calculate the change in mass

  1. Using a physical change, what type of evidence would support the Law of Conservation of Matter?The mass before the change
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    2. Amaris Martin asked by Amaris Martin
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  2. Calcium carbonate of mass 10g was heated until there was no further changeA. Write an equation for the reaction B. Calculate the
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    2. Stephen asked by Stephen
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  3. A force of 20 N is applied horizontally to a 1 kg mass on a level surface. The coefficient of friction is .2. if the mass is
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    2. Andrea asked by Andrea
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  4. A motor car of mass 1200kg is moving along a straight line with a uniform velocity of 90km/h.itsmvelocity is slowed down to
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    2. piyush asked by piyush
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  5. A rock is taken from the Moon back to Earth. Which of the following correctly describes the changes to its mass and weight?a Its
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  6. A conical pendulum is formed by attaching a 50 g mass to a 1.2m string. The mass swings around a circle of radius 25cm. A
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    2. Robert asked by Robert
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  7. assuming you have o.4g of Y(OH)3, calculate the mass of BaO2 required to react stoichiometrically to produce YBa2Cu3O7. Now
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    2. nick asked by nick
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  8. A weighed sample of crystalline sodium carbonate (Na2CO3.nH2O)was heated in a crucible until there was no further change in
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  9. A rigid tank of small mass contains 40.0 g of argon, initially at 200°C and 100 kPa. The tank is placed into a reservoir at
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    2. miyuki asked by miyuki
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  10. Effects of Change Quick Check1. Which major environmental change is occurring today that could cause the next mass extinction?
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    2. sup asked by sup
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