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ahrayia [7]
3 years ago
14

A student decides to conduct an investigation to determine the boiling points of water and ethanol. The student will heat sample

s of water and ethanol, and measure the temperature at which the samples boil. The student will conduct the investigation three times. Which aspect is missing from the experimental design?
Chemistry
1 answer:
lilavasa [31]3 years ago
8 0
Deciding on the appropriate equipment
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Predict the products of the thermal decomposition of strontium nitrate and show the reaction as a word equation.
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2SrO + 4NO2 + O. The thermal decomposition of strontium nitrate to produce strontium oxide, nitrogen dioxide and oxygen. This reaction takes place at a temperature of over 570°C

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A 7.2 L balloon at 2 atm of pressure has its pressure reduced to 0.5 atm. What is the new size of the balloon, in liters?
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Explanation:

using Boyles law: which shows the relationship between pressure and volume, when temperature Is kept constant

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What intermolecular forces can occur between a CO3<br> ion and H2O molecules? List them
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Intermolecular forces are forces of attraction that exits between molecules. These forces are weaker in comparison to the intramolecular forces, such as the covalent or ionic bonds between atoms in a molecule.

Considering CO3^2- and H2O, we must remember that hydrogen bonds occur whenever hydrogen is bonded to a highly electronegative atom such as oxygen. The carbonate ion is a hydrogen bond acceptor.

Also, the London dispersion forces are present in all molecules and is the first intermolecular interaction in molecular substance. Lastly, ion-dipole interactions exists between water and the carbonate ion.

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3 years ago
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