lashell14

20.09.2020 • 

Chemistry

A scientist wrote down the steps to perform a chemical experiment, but they are out of order. Help the scientist by rearranging his steps in the correct order. Measure out 0.3 grams each of the solids, lead nitrate and potassium iodide. Watch mixture change from clear to a yellow solid and record observations. 1 Measure 100 ml distilled water into each of two beakers. 1 Write a science report detailing results and conclusions. Dissolve each solid in a separate beaker of water. Pour both solutions into one container and slowly stir. Create a presentation and share findings with peers. Predict what happens when lead nitrate reacts with potassium iodide.

Ответ:

angrybirdsryver

02.02.2022

Chemistry

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predict what's going to happen

measure 100 million distilled water into two beakers

measure out 0.3 grams each

dissolve each solid in a separate beakers of water

pour both solutions into one containers

watch mixture change

write a science report

make a presentation and share with peers

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Ответ:

angelmilla

09.01.2021

Chemistry

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The variable we have to determine for this problem is the time. Since the given information is speed, we have to know the distance so that we can solve for the time. From literature, the distance between the Earth and the moon is 384,400,000 meters. Therefore,

Speed = Distance/Time
Time = Distance/Speed
Time = 384,400,000 m/ 3×10⁸ m/s = 1.28 seconds

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