Answer:
Option D: More than 30 seconds
Explanation:
The enzyme CATALASE is found in almost all living organisms. CATALASE helps in the decomposition of one substance into another substance. CATALASE will breaks down hydrogen peroxide into water and oxygen.
When the potatoes were boiled it will surely produce no bubbles because the heat would have degrade the enzyme - catalase While the potatoes at room temperature potato produced the most bubbles because catalase works best at a room temperature.
If the potato solution was boiled for 10 minutes and cooled for 10 minutes before being tested, the average time for the disks to float to the surface of the hydrogen peroxide solution would be MORE THAN 30 SECONDS
Wavelength is measured from crest to crest.
The mass number of element is 22.
The mass number is the sum of number of electrons/proton and number of neutron .
Mass number = number of proton/electron + number of neutrons
If an element with 11 neutrons, 11 protons, and 11 electrons then mass number is calculated as,
Mass number = number of proton/electron + number of neutrons
Mass number = 11 + 11 = 22
learn about element
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Answer:
Kingdom Fungi refers to the group of eukaryotic organisms like fungi, mushrooms, molds and yeasts.
Explanation:
The fungi kingdom is made up of eukaryotic organisms whose cell walls are made of chitin.
Next I will name <u>some characteristics</u> of these organisms:
- They are not plants or animals
.
- They are responsible for absorbing nutrients from other organisms, which they use as food
.
- Some, like mushrooms and yeast, are edible.
- They present cellular orguils and vacuoles
.
- They lack chloroplasts
.
- They produce spores
.
- They are able to break down dead matter
.
- They develop in humid and dark areas
.
- Penicillin is obtained from these organisms.
The working equation for this is written below:
E° = 0.0592logK/n
So, we have to know the value of n first which represents the number of moles electron in the reaction. We cannot answer this because we are not given with the reaction. However, just suppose the reaction is:
Cu⁺ + 2e⁻ --> Cu
Then, n=2. Continuing,
E° = 0.0592log(6.47×10⁵)/2 =<em> 0.172 V</em>
