What does the horizontal axis represent?
The horizontal axis is also called the x-axis as, on a graph the x values are plotted along this line. It is the line representing the “independent” variable which is the value that is NOT dependent on the second value. For example, when driving a car, the distance covered is dependent upon the speed of the vehicle.
What do the bars on this graph represent?
A bar graph is a chart that plots data using rectangular bars or columns (called bins) that represent the total amount of observations in the data for that category. A histogram is an example of a bar graph used in statistical analysis that depicts a probability distribution in some data or sample.
What is something that you use almost every day that is a polymer?
Polymers become the raw materials for products we now use every day, including: synthetic clothing, fiberglass, plastic bags, nylon bearing, polyethylene cups, epoxy glue, silicone heart valves, Teflon-coated cookware and our personal favorite, polymer based paints.
Which of the following is a major reason that Hawaii has been able to prevent some species from going extinct?
Which of the following is a major reason that Hawaii has been able to prevent some species from going extinct? People are protecting public and private land. Hawaii’s systems are relatively protected from the effects of climate change. Scientists are trapping endangered animals and breeding them in captivity.
Which statement below accurately describes the carrying capacity of any ecosystem?
In the same way, exceeding the carrying capacity affects negatively both abiotic and abiotic resources. According to this, the statement that is accurate about carrying capacity is “It is affected by both abiotic and biotic resources”.
What are the real life applications of polymers?
Product made from polymers are all around us: clothing made from synthetic fibers, polyethylene cups, fiberglass, nylon bearings, plastic bags, polymer-based paints, epoxy glue, polyurethane foam cushion, silicone heart valves, and Teflon-coated cookware. The list is almost endless.
Is cotton a polymer?
Cotton consists of a long chain of glucose molecules and thus occurs naturally in plants and thus it is composed of pure cellulose which is the naturally occurring polymer. Thus, the correct answer is that the chemical name of cotton is cellulose.
What element is cotton?
After scouring and bleaching, cotton is 99% cellulose. Cellulose is a macromolecule –– a polymer made up of a long chain of glucose molecules linked by C-1 to C-4 oxygen bridges with elimination of water (glycoside bonds).
Why is cotton a polymer?
A polymer is a chemical compound with molecules bonded together in long, repeating chains. Because of their structure, polymers have unique properties that can be tailored for different uses. Polymers are both man-made and naturally occurring.
Is cotton a mixture?
The title says it all. It’s almost pure cellulose with traces of lignin, techically a mixture but can be treated as pure substance for most purposes. No, Earth, Fire, Air and Water are the four Elements.
Is orange juice a colloid or suspension?
Colloidal mixtures are systems of fine particles suspended in fluid. Milk, orange juice, and paint are some common examples. On Earth, gravity causes the denser particles in a colloidal suspension to settle to the bottom, which is why some colloids, like orange juice and paint, must be stirred before use.
What type of mixture is milk?
Colloids (heterogeneous) An example of a colloid is milk. Milk is a mixture of liquid butterfat globules dispersed and suspended in water. Colloids are generally considered heterogeneous mixtures, but have some qualities of homogeneous mixtures as well.
Is Salt a mixture?
Ordinary table salt is called sodium chloride. It is considered a substance because it has a uniform and definite composition. Salt easily dissolves in water, but salt water cannot be classified as a substance because its composition can vary. …
Is coffee a mixture?
Coffee is a solution, not a compound or mixture, as it includes a solute that dissolves into a solvent. Compounds must be bonded chemically, and mixtures have visibly separate parts. Coffee can also be considered a mixture since it involves two mixed substances, but this is too vague.
Is egg a mixture?
Egg is a mixture as it contains different components which do not have a fixed ratio.
Is alcohol a mixture?
Drinking alcohol (ethanol) is a not a mixture, but a pure substance that happens to be a liquid at room temperature and typical atmospheric pressure (your house). So, pure ethanol is not a solution, but all hard spirits are solutions.
What are the two types of alcohol?
There are two categories of alcoholic beverages: distilled and undistilled. Undistilled drinks are also called fermented drinks. Fermentation is the process by which bacteria or yeast chemically converts sugar into ethanol. Wine and beer are both fermented, undistilled alcoholic beverages.
What type of mixture is alcohol?
Most wines and liquors are homogeneous mixtures. The science of making wine and liquor is based on employing ethanol and/or water as a solvent on various substances – charred oak for bourbon whiskey, for example, or juniper in gin – to create unique flavors. Water itself is an example of a homogeneous mixture.
Is alcohol acidic or basic?
By the Arrhenius definition of an acid and base, alcohol is neither acidic nor basic when dissolved in water, as it neither produces H+ nor OH- in solution. They are generally weak acids. Alcohols are very weak Brønsted acids with pKa values generally in the range of 15 – 20.
Is vodka acidic or basic?
Most vodkas tend to have a pH of 4, which is on the acidic side; FIX High Alkaline Vodka’s pH is higher than 8, so it’s more on the basic side.
Is hand sanitizer an acid or base?
The active ingredient in most hand sanitizers is ethyl alcohol, which has a pH of 7.0. Ethyl alcohol is also known as ethanol, which is a neutral molecule. For this reason, hand sanitizer is neither acidic nor alkaline.
Is wine acidic basic or neutral?
Acidity gives a wine its tart and sour taste. Fundamentally speaking, all wines lie on the acidic side of the pH spectrum, and most range from 2.5 to about 4.5 pH (7 is neutral). There are several different types of acids found in wine, which will affect how acidic a wine tastes.
Which alcohol causes least acidity?
Alcoholic beverages with low ethanol content (beer and wine) are strong stimulants of gastric acid secretion and gastrin release, the effect of beer being equal to the maximal acid output. Beverages with a higher ethanol content (whisky, gin, cognac) do not stimulate gastric acid secretion or release of gastrin.
Which wine is better for acid reflux?
Research published in Gastroenterology found that drinking wine could reduce your risk for reflux esophagitis, or irritation of the esophageal lining. However, another review found that red and white wine both increase the amount of acid produced in your stomach. This puts you at risk for worsening reflux.
Which wines are most acidic?
A big, tannic red that is also high in acidity will seem even more tannic and/or acidic. Some wines that are commonly associated with higher levels of acidity are New Zealand Sauvignon Blanc, Champagne, Loire Valley wines such as Sancerre and Vouvray, along with the white wines of Alsace and Germany.
Is red or white wine more acidic?
A wine with high acid will usually taste crisper, whilast a low-acid wine will feel smoother and rounder on the palate. In general, white wines are more acidic than red wines, with sweet white wines being the most acidic. The tartration level (meaning the % of the wine that is acid) of red wine is around 0.6 to 0 .
Is Pinot Grigio high in acid?
Like we’ve mentioned Pinot Grigio has high acidity levels and it usually tastes less sweet than a Chardonnay, Pinot Grigio is less dry and doesn’t have the same oak flavors and aroma Chardonnay is known for.
What is the least acidic wine?
Lower acid grape varieties are Gewurztraminer, Chardonnay, Viognier, Cabernet Sauvignon, Merlot, Dolcetto, and Grenache. Higher acid varieties are Riesling, Chenin Blanc, Pinot Noir, Zinfandel, Cabernet Franc, Tempranillo, Barbera, Nebbiolo, and Sangiovese.
Which wine is easy on stomach?
A new Spanish study suggests that sipping about 9 ounces of Merlot or a low-alcohol red wine changed the mix of good and bad bacteria typically found in the colon in ways that can benefit your health.
How do you know if wine is acidic?
Typically, the pH level of a wine ranges from 3 to 4. Red wines with higher acidity are more likely to be a bright ruby color, as the lower pH gives them a red hue. Higher pH, less-acidic red wines can take on a blue or purple hue.