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2 years ago

What does the Atomic Number tell you? the amounr of electronstprorons

Chemistry

1 answer:

tankabanditka [31]2 years ago

6 0

Answer

Atomic number or proton number tells us the number of protons found in the nucleus of every atom of that element

Explanation:

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Consider the formula al2(so4)3. how many atoms of aluminum are present?

Shkiper50 [21]

2 atoms of aluminium

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2 years ago

The atmospheric pressure on the surface of Venus is 6.84X10^4. Calculate the atmospheric pressure in atm and torr. Round each of

quester [9]

Answer:

0.675 atm

513 Torr

Explanation:

Given is that, the atmospheric pressure on the surface of Venus is

6.84 X 10⁴ Pa.

1 atm (atmospheric pressure) is equal to 101325 pascal (Pa).

To convert divide the pressure value by 101325.

Pressure in atm = $\frac{6.84 \times 10^{4} }{101325}$

= 0.675055 atm

Rounding it off to 3 significant digits: 0.675 atm

Now, one Torr is 133.322 Pa. For conversion, divide the pressure value by 133.322.

Pressure in Torr = $\frac{6.84 \times 10^{4} }{133.322}$

=513.04219 Torr

Rounding it off to 3 significant digits: 513 Torr

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2 years ago

What lines up with south poles pointing toward the magnet

Olin [163]

I think the answer is magnetic field?

4 0

2 years ago

Read 2 more answers

The order of a reaction Z1) is the product of the powers to which the reactant concentrations are raised in the rate law. Z2) ca

irinina [24]

Explanation:

The Order of Reaction refers to the power dependence of the rate on the concentration of each reactant.

The overall order of reaction is the sum of the individual orders of reaction with respect to the reactants.

Rate = k [A]²[B]¹

In the rate law above, the rate is second order with respect to A and first order with respect to B. The overall order of reaction is a third order reaaction given as; 2+ 1 = 3

6 0

2 years ago

What is the relative rate of diffusion of hydrogen and nitrogen

vredina [299]

Answer:

2.645

Explanation:

Rate of diffusion formula:

Sqrt(mass2/mass1)

>>sqrt(14/2)

(Note:Hydrogen must exist in dwiatomic, [H2])

3 0

1 year ago