What is water made up of?

Answers

Answer 1

Answer: Pure water is made up of a huge number of water molecules.

Each water molecule is made of two Hydrogen atoms and one
Oxygen atom, locked together by the electrons they share.

Answer 2

Answer: 2 Hydrogen and 1 Oxygen otherwise known as H2O, if that's what your looking for

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walking converts what type of energy into mechanical energy? A) chemical B) electromagnetic C)nuclear D)thermal
What do water, aluminum, redwood trees, and valley quail all in common?
What is the Earth's magnetic field is known asa. electrosphere b. biosphere c. asthenosphere d. magnetosphere

In the lungs there are tiny sacs of air, which are called alveoli. an oxygen molecule is trapped within a sac, and the uncertainty in its position is 0.12 mm. what is the minimum uncertainty in the speed of this oxygen molecule?

Answers

As we know that Heisenber's uncertainty law gives that

$\Delta x * \Delta P = (h)/(4\pi)$

here we know that

$\Delta x = uncertainty In Position = 0.12 mm$

$\DeltaP = uncertainty In Momentum = m*v$

now from the above formula we will have

$0.12 * 10^(-3)* 32*10^(-3)v = (h)/(4\pi)$

$3.84*10^(-6)*v = (6.6*10^(-34))/(4\pi)$

$v = 1.37 * 10^(-29)m/s$

so above is the uncertainty in the speed

how much time would it take for the sound of thunder to travel 2000 meters if the sound travels at the speed of 330 meters per sec

Answers

(2,000 m) / (330 m/s) = 6.06 seconds (rounded)

In a nuclear reactor, the moderator is: usually made of graphite placed between the fuel rods used to slow down neutrons all of the above none of the above

Answers

The correct answer is all of the above. In a nuclear reactor, the moderator is usually made of graphite, placed between the fuel rods, and used to slow down neutrons. The nuclear moderator is a medium in which reduces the speed of the fast neutrons.

The answer is D. All the above

Dalton's ideas on atomic theory

Answers

The scientist thought that the atom was the smallest particle in the universe is John Dalton. He established the atomic theory which consists of five; elements are made of extremely small particles called atoms, atoms of different element have different sizes, mass and physic – chemical properties, atoms cannot be divided further, destroyed or created, atoms can combine to form compounds and in chemical reaction, atoms can be combined, separated or rearranged.

Suppose you are looking at a scene that has mountains near the ocean. where do u think the crust should be the thickest?

Answers

the crust is thicker on land so mountains

A conducting coil of 1850 turns is connected to a galvanometer, and the total resistance of the circuit is 30 Ω. The area of each turn is 4.00 × 10-4 m2. This coil is moved from a region where the magnetic field is zero into a region where it is nonzero, the normal to the coil being kept parallel to the magnetic field. The amount of charge that is induced to flow around the circuit is measured to be 8.0 × 10-3 C. Find the magnitude of the magnetic field.