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Brums [2.3K]
3 years ago
12

If you were testing how effective different dish soaps were at cleaning grease off of dishes, thé dependent variable wo

Chemistry
2 answers:
pogonyaev3 years ago
6 0

Answer: B. and maybe C. and definetly D.

Explanation:eh i looked at the dishwasher soaps and some were better than others

borishaifa [10]3 years ago
3 0

Answer:

D. Different dish soap

Explanation:

The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.

When we look at rhe example you gave we can see that the only variable that fan be measured and tested, and is dependent would be the dish soap.

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mr Goodwill [35]
The answer to your question would be is silver(Ag) because gold and silver are highly malleable.
Hope this helped :)
5 0
4 years ago
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Iron(III) oxide is formed when iron combines with oxygen in the air. How many grams of Fe2O3 are formed when 33.4 g of Fe reacts
konstantin123 [22]

    The grams of  Fe₂O₃   that are formed is  47.68 g

<u><em>calculation</em></u>

Step 1: write   the equation for reaction

4 Fe +3O₂ → 2 Fe₂O₃

Step 2: find  the  moles  of Fe

moles = mass÷  molar mass

 = 33.4 g÷55.8 g/mol =0.5986 moles

Step 3 : use the mole ratio to determine the moles of Fe₂O₃

That is  from  equation above Fe:Fe₂O₃  is 4:2 therefore the moles of Fe₂O₃ is  =  0.5986 moles x 2/4 =0.2993 moles

Step 4 : find the mass  of Fe₂O₃

mass = mass x molar mass

The molar mass of Fe₂O₃  = (55.8 x 2 +(15.9 x3) = 159.3 g/mol

mass is therefore =  0.2993 moles x 159.3 g/mol =47.68 g

4 0
3 years ago
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2. Zn + HCI. ZnCl2 + H2<br><br>what reaction is this ​
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3 years ago
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Since, sodium chloride (NaCl) will tend to form a homogeneous mixture in water. Therefore, phase will be equal to 1.

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3 years ago
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