What is a basic requirement that a scientific hypothesis must have

1 answer:

4 0

And "if/then" statement.
Ex. IF I add this amount of water to my plant everyday, THEN it will grow into a healthy plant.

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Instructions: Select the correct answer.

drek231 [11]

The answer is going to be C. Although producing at a fast rate, fossil fuel cannot be re-used or recycled. Wind can be re-used, geothermal energy can be re-used, and hydro energy can be re-used.

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3 0

4 years ago

Convert 11.7 mL to cL

belka [17]

Answer: 11.7 mL=1.17 cL

5 0

3 years ago

How heat moves from one end of a solid to another

pantera1 [17]

In conduction, the thermal energy of a particle is transferred to other particles throughout the solid. The particles with more energy are transferred to those with less.

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4 years ago

Based on the recipe for the Dextrose Calcium Carbonate (DCC) medium, what is the percent concentration (%weight/volume) of dextr

yanalaym [24]

<u>Answer:</u> The percent concentration ( % m/v) of dextrose in the solution is 2 %

<u>Explanation:</u>

We are given:

Mass of Yeast Extract = 5.0 grams

Mass of $K_2HPO_4$ = 1.0 grams

Mass of $MgSO_4$ = 0.5 grams

Mass of Dextrose = 20.0 grams

Mass of $CaCO_3$ = 10. grams

Mass of Agar = 18.0 grams

Volume of solution = 1 L = 1000 mL (Conversion factor: 1 L = 1000 mL)

% (m/v) is defined as the concentration, which is mass of solute present in 100 mL of solution

To calculate the mass of solute, we apply unitary method:

In 1000 mL of solution, the mass of dextrose present is 20.0 grams

So, in 100 mL of solution, the mass of dextrose present will be = $\frac{20.0}{1000}\times 100=2g$

Calculating the % (m/v) of dextrose, we get:

$\% \text{(m/v) of dextrose}=\frac{\text{Mass of dextrose}}{\text{Volume of solution}}\times 100\\\\\% \text{(m/v) of dextrose}=\frac{2g}{100mL}\times 100=2\%$