Answer:
See explanation below
Explanation:
To get this, we need to apply the general expression for half life decay:
N = N₀e(-λt) (1)
Where:
N and N₀ would be the final and innitial quantities, in this case, masses.
t: time required to decay
λ: factor related to half life
From the above expression we need λ and t. To get λ we use the following expression:
λ = t₁₂/ln2 (2)
And we have the value of half life, so, replacing we have:
λ = 8.04 / ln2 = 11.6
Now, we can replace in (1) and then, solve for t:
0.75 = 40 exp(-11.6t)
0.75 / 40 = exp(-11.6t)
ln(0.01875) = -11.6t
-3.9766 = -11.6t
t = -3.9766 / -11.6
<h2>
t = 0.34 days</h2><h2>
</h2>
The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.
<h3>What are micro organism?</h3>
Micro Organism are organism that can be seen with a microscope.
Microorganisms include bacteria, protozoa, algae, and fungi.
Micro organisms exist in its single-celled form or as a colony of cells.
The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.
learn more on micro organism here: brainly.com/question/18051752
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The terms and their definitions are as follows:
1. Energy
B. The capacity to do work.
Energy comes in different forms, each relating to a different type of work. For example, kinetic energy and potential energy.
2. Volatile
D. Substance that changes to gas easily at room temperature
Volatile substances do not have strong attractive forces between their molecules, so they are easily overcome at room temperature and the substance evaporate. For example, petrol.
3. Chemical Reaction
H. Another term for chemical change
4. Chemical Change
G. <span>The change of one or more substances into other substances
</span>Chemical changes involve rearrangement or removal of atoms from a substance
5. Endothermic
J. Any chemical reaction that absorbs energy
These reactions require the addition of heat energy to take place
6. Exothermic
F. Any chemical reaction that gives off energy
Exothermic reactions are associated with a rise in temperature of the system
7. Density
I. The amount of matter contained in a unit volume
Density is characteristic of a substance and independent of the amount that is present
8. Physical property
A. Can be observed without any change in the identity of the substance
Physical changes include breaking and state changes
9. Law of conservation of mass
E<span>.The fact that matter can be neither created nor destroyed in a chemical change.
This is true for any reaction in the universe
10. Chemical property
</span><span>C. Can be observed only when there is a change in composition of a substance
11. Physical Change
K. </span>The type of change in which the identity of substances does not change
