Viscosity Describes the internal resistance of a fluid to flow and can be thought of as a measure of fluid friction.

What action produces the chemical change?

chemical change When one substance combines with another to form a new substance, known as chemical synthesis, or, chemical decomposition into two or more different substances. These processes are called chemical reactions and are usually irreversible except through further chemical reactions.

What do hydrogen molecules and oxygen molecules have in common?

Oxygen and hydrogen share some properties. The similarity is that they are gaseous, odorless but colorless elements.it combines to form water This is essential for all living things. … Oxygen contains 8 electrons and 8 protons, just like hydrogen, it has one electron and one proton.

What is a lobster’s claws called?

Question: Part 1 – General Science When a lobster grows a claw to replace the missing one, the process is called repair.

When sodium atoms form sodium ions, do they share protons?

Protons and neutrons have about the same mass. Approx. 1.67 × 10-24 g, which scientists define as one atomic mass unit (amu) or one dalton. This gives it a total charge of +1 because there are now more protons than electrons.

Liquid Resistance // Viscosity

25 related questions found

Do tire treads reduce friction?

The tread pattern of a rubber tire plays an important role in determining its friction or slip resistance. In dry conditions of paved roads, smooth tire ratio Grooved or patterned tread, as a larger contact area is available for friction.

Why are sodium ions positively charged?

form positive ions

It would be more stable if the atom had a complete shell.a sodium atom can lose its outer electrons. It still has 11 positive protons, but only 10 negative electrons. So the total cost is +1.

What happens when a lobster releases its claws?

After its next molt the paws will begin to regenerate and eventually a new one will replace the lost one. Moulting occurs within the safety of lobster burrows. Due to their new soft shells, lobsters are easy prey and must hide for at least a week or two.

What is a celestial body that revolves around a larger celestial body?

a natural satellite is any celestial body in space orbiting a larger celestial body. Satellites are called natural satellites because they orbit planets.

What do mollusks usually have?

Mollusks are a clade of organisms that have soft bodies, usually with « Head » and « Foot » areasTheir bodies are often covered with hard exoskeletons, such as the shells of snails and clams or the plates of chitons.

What is the difference between oxygen and hydrogen?

Summary – Hydrogen vs Oxygen

The chemical elements hydrogen and oxygen exist in the gaseous state of diatomic molecules under standard pressure and temperature conditions.The main difference between hydrogen and oxygen is that Hydrogen is a very light gas while oxygen is a heavy gas.

How many atoms are in H2O?

Have 3 atoms In H2O, it has two hydrogen atoms (H2) and one oxygen atom (O)4C.

Why is hydrogen and oxygen different?

Main Difference – Hydrogen vs Oxygen

Hydrogen and oxygen are two elements found almost everywhere on Earth.The main difference between hydrogen and oxygen is Hydrogen has no neutrons in its most stable isotope, while oxygen has 8 neutrons in its most stable isotope.

4 What are examples of chemical changes?

example of chemical change

• Burning wood.
• sour milk.
• Mixed acids and bases.
• Digest food.
• Boiled eggs.
• Heat sugar to form caramel.
• Bake a cake.
• Iron rusts.

What are the 5 proofs of chemical reactions?

Five conditions for chemical change: Color change, precipitate formation, gas formation, odor change, temperature change.

Is melting a chemical change?

melting is an example physical change A physical change is a change in a sample of matter in which some properties of the substance are changed, but the properties of the substance are not. …melted ice may refreeze, so melting is a reversible physical change.

Which is our Earth’s only natural satellite?

moon It is the only natural satellite of the earth. It orbits the Earth about 239,000 miles (385,000 kilometers).

Why are satellites called satellites?

the moon is a satellite because it revolves around the earth. The Earth and the Moon are called « natural » satellites. … Sputniks are human-made machines. These machines are launched into space and orbit the Earth or another object in space.

Can a lobster bite off your finger?

They are not very friendly, but some people do keep lobsters as pets. …Lobster claws are strong. A huge lobster could break your finger. Lobsters use their three pairs of antennas as sensors.

Do lobsters pee out of their eyes?

Lobster peeing from the face.

They have urination nozzles just below their eyes. Whether fighting or mating, they pee on each other’s faces as a way of communicating.

What is the largest lobster ever caught?

The largest recorded lobster in the world is 44 lbs (20 kg) Arrested in Nova Scotia in 1977, according to Guinness World Records. Maine’s lobster catch reached a record 100 million pounds (45.4 tons) last year, due in part to overfishing of predators such as haddock, cod and monkfish.

Which subatomic particle is the lightest?

electronic, the lightest known stable subatomic particle. It carries a negative charge of 1.602176634 × 10−19 coulombs and is considered the basic unit of charge. The electron’s remaining mass is 9.1093837015 × 10−31 kg, which is only 1/1,836 the mass of the proton.

What is the difference between atom and ion?

Atoms are neutral; they contain the same number of protons as electrons.By definition, an ion is a charged particle that is obtained by removing electrons from neutral atoms to give positive ions or adding electrons to neutral atoms to give positive ions negative ion.

Why does sodium have 10 electrons?

Because the number of electrons is not equal to the number of protons, each ion has a net charge. … If sodium loses an electronwhich now has 11 protons, 11 neutrons, and only 10 electrons, with a total charge of +1.