Answer:
C) Carla participated in an artistic activity, while Maurice participated in a scientific activity.
Explanation:
Scientific activities involve making observations, which ultimately leads to the series of steps that aims at solving the observed problem or answering a question that arises from the problem. This is the case of Maurice who is observing and recording information about ants in order to solve a curiosity (about what they feed on).
However, on the other hand, Carla is given a pictorial representation of the ants and what they carry. It is not based on curiosity or to answer a question about the ants but rather for decoration or aesthetic purposes, which is what makes her activity artistic.
Answer:
0.085 moles of N₂O₅ are needed
Explanation:
Given data:
Mass of NO₂ produces = 7.90 g
Moles of N₂O₅ needed = ?
Solution:
2N₂O₅ → 4NO₂ + O₂
Number of moles of NO₂ produced :
Number of moles = mass/ molar mass
Number of moles = 7.90 g/ 46 g/mol
Number of moles = 0.17 mol
now we will compare the moles of NO₂ with N₂O₅.
NO₂ : N₂O₅
4 : 2
0.17 : 2/4×0.17 = 0.085 mol
Thus, 0.085 moles of N₂O₅ are needed.
Answer:
E
Explanation:
This is because all steps from A-D are important to obtain an accurate result
The question is incomplete. Here is the full version
Select the substance that has the higher boiling point. Select the substance that has the higher boiling point. a)C3H8 b)CH3OH c)CH3OCH3
Answer:
b)CH3OH
Explanation:
a)C3H8 The dominant intemolecular force here are London dispersion forces.
Dipole-dipole forces cancel out because the molecule is symmetric
b)CH3OH - The dominant intermolecular force is hydrogen bonding
c)CH3OCH3 - The dominant intemolecular force here are London
dispersion forces. Dipole-dipole forces cancel out because
the molecule is symmetric