Answer:
Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. Mixtures are physically combined structures that can be separated into their original components. A chemical substance is composed of one type of atom or molecule.
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Answer:
d. dispersion forces
Explanation:
Dispersion forces -
It is a very weak type of interaction observed between two atoms , when the electrons of the respective atoms attain a position where they form temporary dipoles , is referred to as dispersion forces.
These are the temporary force of attraction.
These force of attraction are also referred to as induced dipole-induced dipole attraction .
These force of attraction are possible when the electrons are unsymmetrically distributed thereby induces positive and negative poles.
Similarly ,
Stearate ion and oil drop have dispersion force between them.
ONE QUESTION AT A TIME! We're here to help you answer a tough question or work you through it, not do all of your homework.
Answer:
A. A line graph
Explanation:
You use line graphs to track changes over time. Line graphs are better when the changes are small. They are also more useful when you want to compare changes over the same period for more than one group, for example, plants exposed to music and a control group.
B is wrong. A pie chart is best for comparing parts of a whole.
C is wrong. You can use a bar graph to track changes over time, but small changes are harder to spot.
D is wrong. You use a timeline to mark important points in time, for example, when you are deciding the times when you must complete various stages of a project.
Which of the charts below do you think is more helpful in showing the change in plant height over time?
<h2>Answer:</h2><h3>Vitalism-</h3>
- A theory that an organic molecule cannot be produced from inorganic molecules, but instead can only be produced from a living organism or some part of a living organism. The theory was disproved in the early part of the 19th century<em>.</em>
<em>Translated</em><em>~</em>
- Teoría de que una molécula orgánica no se puede producir a partir de moléculas inorgánicas, sino que solo se puede producir a partir de un organismo vivo o de alguna parte de un organismo vivo. La teoría fue refutada a principios del siglo XIX.
