Mathematics, 03.09.2021 01:40, shawtybrown21
Please help me will mark brainiest
1 . The table shows the mass and melting point of some substances.
Melting Point of Substances
Mass
(kg) Melting Point of Tin
(°C) Melting Point of Lead
(°C)
1 W Y
2 232 327
Part 1: What will be the values of W and Y for 1 kg of each substance?
Part 2: Explain your answer for Part 1.
2 . Patrick did an experiment to study the solubility of two substances. He poured 100 mL of water at 20 °C into each of two beakers labeled A and B. He put 60 g of Substance A in the beaker labeled A and 60 g of Substance B in the beaker labeled B. The solution in both beakers was stirred for 1 minute. The amount of substance left undissolved in the beakers was weighed. The experiment was repeated for different temperatures of water and the observations were recorded as shown.
Experimental Observations
Substance Mass of Undissolved Substance at Different Temperatures (gram)
20 °C 40 °C 60 °C 80 °C
A 18 14 10 5
B 60 60 60 60
Part 1: Which, if any, substance is soluble in water?
Part 2: Explain how the data helped you determine solubility for both substances for temperatures 20 °C to 80 °C.
Answers: 1
Mathematics, 22.06.2019 01:30, isabelgalvarado2838
At store a, erasers are sold individually. the cost y of x erasers is represented by the equation y=0.75x. the costs of erasers at store b are shown in the graph.
Answers: 2
Mathematics, 22.06.2019 01:40, leylaanddade
Amass weighing 16 pounds stretches a spring 8/3 feet. the mass is initially released from rest from a point 2 feet below the equilibrium position, and the subsequent motion takes place in a medium that offers a damping force that is numerically equal to 1/2 the instantaneous velocity. find the equation of motion if the mass is driven by an external force equal to f(t)=cos(2t).
Answers: 2
Mathematics, 22.06.2019 05:00, townselt6855
In the triangle below, what is the length of the side opposite the 60° angle?
Answers: 1
Please help me will mark brainiest
1 . The table shows the mass and melting point of some substanc...
History, 07.07.2019 21:00
Mathematics, 07.07.2019 21:00
Mathematics, 07.07.2019 21:00
Advanced Placement (AP), 07.07.2019 21:00
Business, 07.07.2019 21:00