All categories

4 years ago

What type of energy drives the windmill ?

Chemistry

2 answers:

egoroff_w [7]4 years ago

7 0

The energy is kinetic

nirvana33 [79]4 years ago

7 0

<span>the tpe of energy a windmilldrives? it has kinetic energy</span>

You might be interested in

Which of these processes removes carbon from

GenaCL600 [577]

Answer is c photosynthesis

3 0

3 years ago

Use the Henderson-Hasselbalch equation, eq. (3), to calculate the pH expected for a buffer solution prepared from this acid and

notka56 [123]

Answer:

$pH=4.56$

Explanation:

Hello there!

In this case, given the Henderson-Hasselbach equation, it is possible for us to compute the pH by firstly computing the concentration of the acid and the conjugate base; for this purpose we assume that the volume of the total solution is 0.025 L and the molar mass of the sodium base is 234 - 1 + 23 = 256 g/mol as one H is replaced by the Na:

$n_{acid}=\frac{0.2g}{234g/mol}=0.000855mol\\\\n_{base}= \frac{0.2g}{256g/mol}=0.000781mol$

And the concentrations are:

$[acid]=0.000855mol/0.025L=0.0342M$

$[base]=0.000781mol/0.025L=0.0312M$

Then, considering that the Ka of this acid is 2.5x10⁻⁵, we obtain for the pH:

$pH=-log(2.5x10^{-5})+log(\frac{0.0312M}{0.0342M} )\\\\pH=4.60-0.04\\\\pH=4.56$

Best regards!

6 0

2 years ago

Which of these compounds would you expect

Veseljchak [2.6K]

ClBr, two nonmetals

Hope this helps you

6 0

2 years ago

Choose the best tool for each scenario.

Mama L [17]

Answer:

a) Graph

b) Weight balance or gas syringe or upside-down measuring cylinder

Explanation:

a) Identifying a trend in temperature change over time - The best tool for this scenario is to represents the temperature daily, weekly, monthly or annually on graph to interpret the fluctuation in temperature owing to local seasonal changes and weather conditions

b) Measuring the mass of a product of a chemical reaction - If the product is solid or liquid then the balance is used to measure the mass. If the product is a gas, then gas syringe or upside-down measuring cylinder is used.

8 0

3 years ago

The results of an investigation are the<br> (Blank)

jenyasd209 [6]

Answer: ending results

Explanation:

3 0

3 years ago