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Mumz [18]
3 years ago
15

Group A exercises for a month. Group B does not exercise. They measure the amount of weight they gained at the end of the month.

What is the independent, dependent, and controlled variable
Chemistry
2 answers:
givi [52]3 years ago
7 0
I know the independant variable is the weight they gained. hoped this helped!
Irina18 [472]3 years ago
3 0
The independent variable is the exercise.
The dependent variable is the weight they gained.
The controlled variable is the groups, and how long(a month).

Hope it's correct, sorry if it's wrong.
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The following chemical reaction occurs in a basic solution.
Dafna1 [17]

Answer:

6 moles of electrons

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The oxidation number of chlorine is increased from +1 to +3. This implies that six electrons were transferred in the balanced reaction equation shown in the question. Hence the answer.

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3 years ago
If starch, glucose and NaCl are soaked in the dialysis tubing , will there be a difference between the beginning and after 15min
spin [16.1K]
<span>Yes. If you put solutions containing the same concentration table salt, glucose and starch in different bags and place the bags in water (i.e., 0M) solution, then the bag with salt will contain more water after 15 minutes than the bag with glucose, which will contain more than the bag with starch.</span>
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3 years ago
Mature elephants consume an average of 600 pounds of food per day. If an elephant
MAXImum [283]

Answer:

\large \boxed{\text{4 600 000 kg or 4600 Mg}}

Explanation:

1. Calculate the adult life

If the elephant is an adult from its 10th birthday until the day before its 56th birthday, its  

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2. Convert years to days

\text{Adult life} = \text{46 yr} \times \dfrac{\text{365.25 da}}{\text{1 yr}} = \text{16 800 da}

3. Convert days to pounds of feed

\text{Feed} = \text{16 800 da} \times \dfrac{\text{600 lb}}{\text{1 da}} = 1.01 \times 10^{7} \text{ lb}

4. Convert pounds to kilograms and megagrams

\text{Feed} =1.01 \times 10^{7} \text{ lb} \times \dfrac{\text{1 kg}}{\text{2.20 lb}} =\textbf{4 600 000 kg} = \textbf{4600 Mg}\\\\\text{The elephant will eat $\large \boxed{\textbf{4 600 000 kg or 4600 Mg}}$ of food.}

Note: The answer can have only two significant figures because that is all you gave for age of the elephant.

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Explanation:

Ca(OH)2+CO2 → CaCO3 (Milkiness) ↓+H2O

CaCO3+H2O+CO2 → Ca(HCO3)2 (soluble)

5 0
3 years ago
Which of the following is NOT true about nuclear fusion?
inysia [295]

<u>Answer:</u>

I think it's (C)

The products are suitable for making nuclear weapons.

hope this helps!

6 0
3 years ago
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