Chemistry, 25.10.2019 21:43, sonthatshannah
Randy is building a house. he wants to put stucco on the outside walls of his house. to make stucco, he needs sand. he lives on the beach, so he decides to use the soil in his backyard. before he can use the sand, he must remove the other substances from the soil. he separates the larger pebbles and other debris from the finer sand by sifting it with wire mesh. randy mixes the sand with concrete and water to make the stucco he needs. which sentence provides the best evidence that randy's backyard soil is a heterogeneous mixture?
(a)-before he can use the soil, he must remove the substances other than sand in the soil.
(b)-to make stucco, he needs sand.
(c)-he separates the larger pebbles and other debris from the finer sand by sifting it with wire mesh.
(d)-randy mixes the sand with concrete and water to make the stucco he needs.
Answers: 2
Chemistry, 22.06.2019 17:00, abbygailgo674
How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process
Answers: 1
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