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fiasKO [112]
3 years ago
7

Ocean basins will expand as new oceanic crust forms and moves away from a mid-oceanic ridge during

Chemistry
2 answers:
KATRIN_1 [288]3 years ago
4 0
Sea floor spread ing
sineoko [7]3 years ago
4 0

Answer:

sea floor spreading

Explanation:

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In coulombs, how much positive charge is there IN a barium nucleus? On a barium ion?
faltersainse [42]

Answer:

The amount of positive charge in a barium nucleus is approximately 8.972 × 10⁻¹⁸ coulomb

Explanation:

The amount of positive charge there is in a barium nucleus is found as follows;

The atomic number of an element is equal to the number of proton present in the atom

The atomic number of barium = 56 = The number of protons in an atom of barium

The positive charge of a single proton is known as an elementary charge, e, given by the formula, e = F/N_A

Where;

F = Faraday's constant

N_A = The Avogadro's number

Therefore, e = 1.602 176 634 × 10⁻¹⁹ C

Which gives the positive charge, Q, of the protons of a barium nucleus as follows;

Q = Number of protons × e

Q = 1.602176634 × 10⁻¹⁹ × 56 ≈ 8.972 × 10⁻¹⁸ Coulomb  per atom of barium.

The amount of positive charge in a barium nucleus ≈ 8.972 × 10⁻¹⁸ coulomb.

4 0
3 years ago
The rate of reaction (reaction rate) is the
Lorico [155]
Sugar dissolves faster in a warm liquid than in a cold liquid – this is an example of how temperature influences the reaction rate....

Yes it is. Another example is surface area of reactants, powdered iron fillings would react faster in HCl than iron lumps.

Also your beverage would also dissolve faster in hot water than in cold water, this is also an example of how temperature affects rate of reaction.

There are other examples that can be stated as well.
3 0
3 years ago
How long is the Mississippi river?
Grace [21]
2,320 miles, or you can say 593,000 cubic feet per second.
4 0
3 years ago
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Look at the following chemical compounds. State how many molecules of each reactant are present. (I’m sorry I’ve been working on
Kryger [21]

▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪

<h3>Compound ~ \mathrm{NaOH}</h3>

Na = 1

O = 1

H = 1

<h3>Compound ~ \mathrm{CO_2}</h3>

C = 1

O = 2

<h3>Compound ~ \mathrm{3  \: CaO}</h3>

Ca = 3

O = 3

<h3>Compound ~ \mathrm{2 MgCl_2}</h3>

Mg = 2

Cl = 4

7 0
3 years ago
• Can you explain what a scientific theory is and what a scientific law is
lions [1.4K]
A scientific law<span> is a statement based on repeated experimental observations that describes some aspects of the universe. A </span>scientific law<span> always applies under the same conditions, and implies that there is a causal relationship involving its elements.</span>A scientific theory<span> is a well-substantiated explanation of some aspect of the natural world, based on a body of facts that have been repeatedly confirmed through observation and experiment. Such fact-supported </span>theories are not "guesses" but reliable accounts of the real world.
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