Description of an ozone molecule?
Ozone is made of three oxygen atoms bound together and which is written by chemists as O3. The ozone molecule can be represented as three balls and two sticks holding the three balls in place. The balls represent the oxygen atoms, and the sticks represent the chemical bonds that hold the oxygen together. The bonding is roughly this O-O=O, but the atoms are not inline. The molecule is slightly polar because of the triply bonded central oxygen atom and the bent shape. The molecule swaps which atom has the double bond periodically. It is unstable, it decays in time even at liquid ozone temperatures.
Does a bacteria cell have a cell membrane?
Some have outer membrane, some don't.
Gram positive bacteria - no outer membrane
Gram negative bacteria - with outer membrane
What are three ways living organisms use carbohydrates?
Carbohydrates are the human body's key source of energy, providing 4 calories of energy per gram. When carbohydrates are broken down by the body, the sugar glucose is produced; glucose is critical to help maintain tissue protein, metabolize fat, and fuel the central nervous system.
Why does an ice cube melt when outside of the freezer?
when the ice cube is taken out of the freezer the warm air or the climate change will have the effect to make it melt because when the ice cube freezes its in a very cold climate at about 32 degrees or cooler and when warm air hits what ever was cold it heats up and it melts it back to its regular form.
What is the conversion of gas into solid called?
Conversion on of gas into solid is called desublimation.
Name three factors that influence the rate at which a solute dissolves in a solvent?
Where does energy come from for producers?
Producers, like plants, get their energy from sunlight through the process of photosynthesis. They convert this solar energy into chemical energy in the form of glucose, which can be used to fuel their growth and reproduction. This process forms the basis of the food chain, as it provides energy for consumers higher up in the food chain.
Molars are wide and flat to provide a larger surface area for grinding and chewing food. The shape of molars helps in breaking down food into smaller particles, making it easier for digestion. Additionally, the flat surface of molars also helps distribute the force of chewing evenly across the tooth, preventing damage or fractures.
Speed is typically calculated by dividing the distance traveled by the time it took to travel that distance. The formula for speed is Speed = Distance/Time. It is usually measured in units such as meters per second (m/s) or kilometers per hour (km/h).
What is a color shaded relief map?
A color shaded relief map is a type of map that combines elevation data with shading to create a three-dimensional-like representation of the Earth's surface. Different colors are used to indicate changes in elevation, while shading is added to show the direction of light and create a sense of depth and topography on the map. This type of map is often used in geography, cartography, and environmental studies to visualize terrain features and landforms.
What is the symbol for moment of a force?
The symbol for moment of a force is "M." It is also sometimes represented as "τ" (tau).
Does global warming effect the earth?
Global warming has no effect on earth's mantle or core, but there IS a measurable effect on earth's atmosphere and surface. We have witnessed the recession of glaciers, and concordant rise in sea levels. So far this rise has been very small, but it is expected to increase substantially within the next few centuries.
Eco-Drive watches are the current generation of watches made by Citizen. The face of the watch is a solar collector that charges a lithium battery. Note that it isn't charged only by sunlight, but any light, including florescent, will charge the watch.
Citizen no longer makes their quartz watches and now only makes the Eco-Drive watches. They carry a 5 year warrenty, and range from around $175-$1000 dependant on model and features.
What forces are acting on a book that is lying on a table?
Gravitational force (weight), pointing down.
Reaction force, equal to the gravitational force (weight), exerted by the tabletop, pointing up.
Eric's love for playing soccer is most likely a result of his environment rather than heredity. While he may have some inherited genetic predispositions towards physical activity, his exposure to soccer as a sport and the encouragement he receives from his family and peers are important factors shaping this interest.
What countries have hot wet climates?
Countries with hot wet climates include Brazil, Indonesia, Malaysia, Thailand, and parts of Africa, such as the Congo and the Amazon rainforest. These regions typically experience high temperatures and high levels of humidity, with frequent rainfall throughout the year.
Type A neurons are a classification of neurons based on their conduction velocity and function. They are typically fast-conducting neurons responsible for transmitting signals quickly over long distances in the body. Type A neurons are further subdivided into categories based on the diameter of their axons and the presence or absence of myelin sheaths.
What is the neuron part that picks up signals from other neurons?
Dendrites are the neuron part that pick up signals from other neurons. They are branch-like structures that extend from the cell body and receive incoming signals in the form of neurotransmitters released by neighboring neurons. These signals are then integrated in the cell body and transmitted along the neuron for further processing.
What is fossilized poop called?
Fossilized poop is called coprolite. It is formed when feces undergoes a process of mineralization and becomes preserved in rock. Coprolites can provide valuable insights into the diet and digestive processes of ancient animals.
Can rubbing alcohol take out permanent marker?
isopropanol/Ispropyl (or called rubbing alcohol) is a solvent that has polar molecules (molecules with a positive charged molecule that sticks to a negative charged molecule).
If you sniff a sharpie, it has a sharp, alcohol smell, right? Sharpies have n-propanol alcohol, n-butanol, and diacetone alcohol in them. They have pretty similar structures to rubbing alcohol. All alcohol have polar molecules.
There is a "like dissolve like" rule. This means Polar solvent+Polar solvent will stick together. OR non-polar solvent+nonpolar solvent will stick together.
The closer the types of molecule and chemical make-ups are, the more likely they are to dissolve or be removed.
What might happen if there was an earthquake near a mountain?
If there is an earthquake near a mountain, the shaking can trigger landslides, rockfalls, and avalanches on the mountain slopes. The earthquake can also cause the formation of cracks or fractures in the mountain, potentially leading to increased instability in the area.
How many kilometers in a 5 miles?
Answer: 5 mi. = 8.0km. Exactly..
On a track
400m = 1 lap.
2.5 laps = 1km or 1000m.
2.5*8 laps is 20 laps. Since 20 laps = 8 km. That must mean that
5 miles = 8k exactly.
and 5k is 3.125 miles too.
What does a breeder reactor produce?
Well, simply put, both are nuclear reactors. A breeder reactor is one which instead of losing it's neutron production to capture in moderators or shielding elements, absorbs most of the neutron production in the fuel specifically for the production of transuranic elements.
Such reactors have been used since the 60's to facilitate in the production of fusion nuclear weapons, also known as hydrogen bombs, as these require large amounts of plutonium which can only be created in a breeder reactor.
The U.N. has been discouraging the use of breeder reactors since the mid nineties and many worldwide have been shut down. This is in part due to their use in the proliferation of nuclear weapons and due to their inherent instability.
There are literally dozens of types of nuclear reactors, breeders being only one. Others include pressurized water reactors, boiling water reactors, graphite moderated reactors, lead cooled reactors, or the more recent pebble bed reactors.
Why do scientists use equipment?
Scientists use equipment to conduct experiments, make observations, collect data, and analyze results with accuracy and precision. Different types of equipment help scientists measure, record, manipulate, and visualize physical and chemical phenomena to understand the natural world better.