How does the uneven hearing of earth cause convection currents to form? PLEASE ANSWER:)

2 answers:

7 0

Uneven hearing of earth cause convention currents to form because the Earth's surface and atmosphere are unevenly heated by the Sun

igor_vitrenko [27]3 years ago

3 0

Answer:

Because of the tilt of Earth on its axis, Earth's surface and atmosphere are unevenly heated by the Sun. Convection currents form in the atmosphere as warmer air rises and cooler air sinks.

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How many oxygen atoms are present in a formula unit of calcium acetate?

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Answer:

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3 years ago

(Help!) What is the mass of hydrogen atoms that is measured at 72 u?

Lunna [17]

Answer:

=71.439911 u

Explanation:

We know that 1 mass of hydrogen atom = 1.00784 u

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2 years ago

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A scientist is examining a mixture of nitrogen, hydrogen, and ammonia. The individual pressures that are exerted by nitrogen and

Svetach [21]

Using Daltons Law which states that the total pressure of a gas mixture is the sum of the gasses partial pressure.Thus,

Pt(total pressure)= P1+P2+P3
where
Pt= 0.90 atm
P1= 0.26 atm
P2 = 0.28 atm
P3 = ?
substitute the formula with known variables
P3= 0.90 atm-(0.26atm+0.28atm)
P3 = 0.36 atm

The partial pressure of ammonia is 0.36 atm

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3 years ago

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How many molecules are in .250 moles of oxygen?

otez555 [7]

Answer:

4.7 x 10^24 molecules

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3 years ago

How many moles of PCl5 can be produced from 28.0 g of P4 (and excess Cl2 )? Express your answer to three significant figures and

umka2103 [35]

0.903 mol of PCl₅ can be produced from 28.0 g of P₄ (and excess Cl₂).

<h3>What is Stoichiometry ?</h3>

Stoichiometry helps us to use the balanced chemical equation to measure the quantitative relationship and it is to calculate the amount of product and reactants that are given in a reaction.

<h3 /><h3>What is Balanced Chemical Equation ?</h3>

The balanced chemical equation is the equation in which the number of atoms on the reactant side is equal to the number of atoms on the product side in an equation.

Now write the balanced chemical equation

P₄ + 10 Cl₂ → 4PCl₅

1 mole of P₄ react with 10 mole of Cl₂ produces 4 moles of PCl₅.

According to Stoichiometry

$\frac{n_{P_4}}{1} = \frac{n_{PCl_5}}{4}$