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2 years ago

14

Does anyone know how to write a good hypothesis (If…then)

1 answer:

astra-53 [7]2 years ago

3 0

Here's an example of a hypothesis: If you increase the duration of light, (then) corn plants will grow more each day. The hypothesis establishes two variables, length of light exposure, and the rate of plant growth. An experiment could be designed to test whether the rate of growth depends on the duration of light

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You can choose from four different materials to make the handrails that run up the stairs and around the playhouse: steel, alumi

Oduvanchick [21]

I think it would be minimize so u can have more friction

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2 years ago

The freezing point of water is 0.00°C at 1 atmosphere. How many grams of nickel(II) sulfate (154.8 g/mol), must be dissolved in

VladimirAG [237]

Answer:

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Explanation:

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3 years ago

What is the solubility of La(IO₃)₃ in a solution that contains 0.100 M IO₃⁻ ions? (Ksp of La(IO₃)₃ is 7.5 × 10⁻¹²)

love history [14]

<u>Solution and Explanation:</u>

[La3+] = 0.1 M

<u>At the equilibrium: </u>

La(IO3)3 <----> La3+ + 3 IO3-

0.1 +s 3s

$\mathrm{Ksp}=[\mathrm{La} 3+][\mathrm{IO} 3-]^{\wedge} 3$

$7.5 * 10^{\wedge}-12=(0.1+s) *(3 s)^{\wedge} 3$

Since Ksp is small, s can be ignored as compared to the 0.1

The above shown expression thus becomes:

$7.5 * 10 \wedge-12=(0.1) *(3 s) \wedge 3$

$7.5 * 10^{\wedge}-12=0.1 * 27(\mathrm{s})^{\wedge} 3$

$s=1.406 * 10^{\wedge}-4 \mathrm{M}$

<u>Answer: 1.4*10^-4 M </u>

3 0

2 years ago

• Qual a diferença entre o etanol 60%, 70% e 90%?

lyudmila [28]

Lo siento pero no puedo ayudarte.

6 0

2 years ago

Sugar dissolves when stirred into coffee. The coffee is the ________, the sugar is the ________, and the sweetened coffee is the

Finger [1]

Answer:

The coffee is the solvent. The sugar is the solute. The sweetened coffee is the solution.

Explanation:

8 0

2 years ago