B. New substances are formed. In a chemical reaction, the starting molecule must be changed or turn into another. For example: rusts that form in a tin can is a chemical reaction. The iron in the can combines with the oxygen in the atmosphere, creating rust (iron oxide), which is a different substance.
<span><span>B. A time that is less than a half hour.
</span>Acceleration = Velocity / Time
Greater velocity / Lesser time
Greater Velocity = greater acceleration
Proportionality or variation is state of relationship or correlation between two variables It has two types: direct variation or proportion which
states both variables are positively correlation. It is when both the
variables increase or decrease together. On the contrary, indirect variation or proportion indicates
negative relationship or correlation. Elaborately, the opposite of what
happens to direct variation. One increases with the other variables,
you got it, decreases. This correlations are important to consider
because you can determine and identify how two variables relates with
one another. Notice x = y (direct), y=1/x (indirect)</span>
Explanation:
In thermoplastics, the arrangement of monomeric units is linear and in thermosetting plastics, it is cross-linked. Thermoplastics are usually soft, weak and less brittle, so can get soften on heating and stiffen on cooling. They can be melted, remoulded and recycled easily.
Answer:
A contact lens (CL) can act as a vector for microorganisms to adhere to and transfer to the ... Thus, this detailed understanding of lens-related bioburden is important in the ... There are many other speculative causes of inflammation (lens deposits or ... Silver ions interact with the DNA of bacteria preventing cell reproduction, ...
A contributor to this problem has been our sketchy understanding of the normal ... and of the microbes that are leading causes of contact lens-associated infection, ... During contact lens wear microbes can enter the eye from the wearer's lid ... Lessons from DNA microarray analysis: the gene expression profile of biofilms.
Explanation:hope this helps
