Answer:
C. A stretch of raised land, often built to help control flooding and the flow of a river.
Explanation:
Embankments are made typically of construction adjacent to the river from spoil excavated from its bank.
<span>the most fertile soil is considered to be is silty soil.
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Answer:
A soft metal, it's solid. Chlorine and oxygen are both gases at room temperature. What are some characteristic properties of chlorine that distinguish it from oxygen? It dissolves in water.
The rate of reaction refers to how fast or slow a reaction is. The rate of reaction can be increased by;
i) Using finely divided sodium carbonate
ii) Increasing the temperature
<h3>Rate of reaction</h3>
Thee term rate of reaction refers to the pace of a chemical reaction. A reaction could be fast or slow.
To increase the rate of this reaction;
i) The sodium bicarbonate could be used in the finely divided form.
ii) The temperature could be raised.
Learn more about rate of reaction: brainly.com/question/13440548
A. The balanced chemical equation is correct:
k2co3 + 2hcl --> 2kcl + co2 + h2o
B. First let us calculate the moles of K2CO3.
moles K2CO3 = 3 g / (138.205 g/mol) = 0.0217 mol
From the equation, we need 2 moles of HCl per 1 mole of
K2CO3, hence:
moles HCl needed = 0.0217 mol * 2 = 0.0434 mol
So the volume required is:
volume HCl = 0.0434 mol / 6 M = 7.24 x 10^-3 L = 7.24 mL
C. The number of moles of HCl and KCl is equal hence:
moles KCl = 0.0434 mol
The molar mass of KCl is 74.5513 g/mol, so the mass is:
mass KCl = 0.0434 mol * 74.5513 g/mol = 3.24 grams
