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expeople1 [14]
4 years ago
10

Suppose you want to do an experiment to hear how three different objects with sound when dropped from the same distance. You dro

p a pebble, a rock, and a grain of sand. What are the variables of your experiment?
Chemistry
1 answer:
Alexus [3.1K]4 years ago
6 0
They will fall at different rates because of air resistance
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Write the ions present in a solution of na3po4. express your answers as chemical formulas separated by a comma. offset subscript
dexar [7]
Sodium/natrium is a metal from first column group so it should have one 1+ charge. Phosphate ion has 3- charge. That is why there 3 natrium ion for 1 phosphate ion when this molecule is dissolved in water. The ion formula would be:

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5 0
3 years ago
Which element is chemically similar to chlorine?
ad-work [718]

bromine

Explanation:

halogens are a group of elemnts simlar to eachother

flourine, chlorine, and bromine

6 0
3 years ago
1. Nitrogen, oxygen, and fluorine atoms all seem pretty similar, at first. How many valence electrons does an atom of each have?
matrenka [14]
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3 years ago
Balance the following chemical equation by providing the correct coefficients fe+h2so4 fe(so4)3 + h2
Dmitriy789 [7]

Answer:

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Explanation:

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2. since (SO4) is 3, this three shows us that there must be 3 in the reactants as well.

so now there is 3H2SO4

3. Since we have added 3 to one hydrogen we must add another. So now it's 3H2

4. and finally iron. In Fe2 (SO4) 3 we see this 2 in front of Fe which means it goes 2Fe.

3 0
3 years ago
Please help me with dis
topjm [15]

Answer:

c

Explanation:

4 0
3 years ago
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