All categories

3 years ago

Select the reason cities tended to develop at the fall line on rivers.

1 answer:

7 0

Towns began to develop along river valleys, where water was available. There were some important reasons for this. The land along the rivers is fertile. Animals can also be raised if there is enough food and water for them.

Hope this helped

You might be interested in

Which is less likely to be a relatable source of information the webpage of a university or the webpage a scientist who is tryin

faltersainse [42]

Answer:

The web page of a university

Explanation:

A scientist can be more biased within coming to information about pretty much anything. I have had multiple science teachers who seem more biased on to something else and pretend that they're right just cause they know what they are doing.

Then the university would be a great choice because its controlled by a higher state, then also the consistency of being updated.

7 0

3 years ago

Regulations on air pollutants in the United States and other countries since the 1970s have greatly reduced the amount of CO2 em

Lynna [10]

True.

Because some people breathe less pollution and face lower risks of premature death and other serious health

7 0

2 years ago

Read 2 more answers

What law of motion does this picture represent

alukav5142 [94]

Answer: none

Explanation: there is no picture attached

7 0

3 years ago

When 20.0 g of KI are dissolved in 50.0 mL of distilled water in a calorimeter, the temperature drops from 24.0 °C to 19.0 °C. C

Reil [10]

<h2>Answer:</h2>

<h2>Explanations</h2>

The formula for calculating the amount of heat absorbed by the water is given as:

$\begin{gathered} q=mc\triangle t \\ q=50\times4.18\frac{J}{g^oC}\times(19-24) \\ q=50\times4.18\times(-5) \\ q=-1045Joules \\ q=-1.045kJ \end{gathered}$

Determine the moles of KI

$\begin{gathered} moles\text{ of KI}=\frac{mass\text{ of KI}}{molar\text{ mass of KI}} \\ moles\text{ of KI}=\frac{20g}{166g\text{/mol}} \\ moles\text{ of KI}=0.1205moles \end{gathered}$

Since heat is lost, hence the enthalpy change of the solution will be negative that is:

$\begin{gathered} \triangle H=-q \\ \triangle H=-(-1.045kJ) \\ \triangle H=1.045kJ \end{gathered}$

Determine the enthalpy of solution in kJ•mol-1

$\begin{gathered} \triangle H_{diss}=\frac{1.045kJ}{0.1205mole} \\ \triangle H_{diss}\approx8.67kJmol^{-1} \end{gathered}$

Hence the enthalpy of solution in kJ•mol-1 for KI is 8.67kJ/mol

4 0

1 year ago

Negative ions are usually formed from: metals nonmetals

Lelechka [254]

Non metals are electronegative in nature whereas metals are electropositive. A non-metal accepts electron and gains negative charge whereas metals lose eletrons and gains positive charge. Hence correct answer is non-metals. Hope this helps!

3 0

3 years ago

Read 2 more answers