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Ad libitum [116K]
3 years ago
8

Investigations allow for the control of variables.

Chemistry
1 answer:
almond37 [142]3 years ago
4 0
Factor or condition in an experiment that changes as a result of the independent variable. constant: factors or conditions in an experiment that are kept the same in ao Trials of the experiment. Control: a set up without the variable being tested.
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What color does blue brown and red make
photoshop1234 [79]

Answer:

dark brown with a hint of purple

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Explanation:

7 0
3 years ago
Really need help on this thing plz someone... help number 2 and 3:(
olasank [31]

Answer:

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Explanation:

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8 0
3 years ago
 Convert the following to moles.
Luda [366]
Use dimensional analysis.
\frac{60.0 grams NaOH}{1} *  \frac{1 mole NaOH}{40.0 amu NaOH} =1.5 moles

\frac{2.73 grams NH4Cl}{1} *  \frac{1 mole NH4Cl}{53.49 amu NH4Cl} = .051 moles

Now you try converting moles to grams. All you have to do is start with MOLES  (Unlike the previous examples) over 1 then multiply that ratio by the ratio of molar mass over 1 mole. Hope this helps!
6 0
3 years ago
A scuba diver is using scuba gear to breathe under water. The pressure on her lungs is 2.5 atm and her lung volume is 4.4 L. Wha
nikdorinn [45]

Answer:

<h2>2.44 L</h2>

Explanation:

The volume can be used by using the formula for Boyle's law which is

P_1V_1 = P_2V_2 \\

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we're finding the final volume

V_2 =  \frac{P_1V_1}{P_2}  \\

We have

V_2 =  \frac{2.5 \times 4.4}{4.5}  =  \frac{11}{4.5}  \\  = 2.444444....

We have the final answer as

<h3>2.44 L</h3>

Hope this helps you

3 0
3 years ago
8. What is the molecular formula of a compound if 0.50 moles of it contains 0.50
11Alexandr11 [23.1K]

Answer:

ew

Explanation:

de

3 0
3 years ago
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