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3 years ago

How does the size of the atom (atomic size) change as you move from the LEFT side to RIGHT side of the Periodic Table?

Chemistry

2 answers:

zubka84 [21]3 years ago

8 0

The correct answer to this would be letter B

Shtirlitz [24]3 years ago

3 0

Answer:

Explanation:

As you move from left to right, the number of protons increases. More protons means a bigger positive charge to pull in the electrons from the shells. This would then decrease the size of the atom.

Thus, the answer is B, the size decreases.

Hope this helps!

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What is the approximate wavelength of radio waves

Ulleksa [173]

Answer:

CO32-:

✔ reactant

H2O:

✔ product

CO2:

✔ product

The 2 in front of H+:

✔ coefficient

Explanation:

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2 years ago

Explain how to count the number of elements in a compound

valentina_108 [34]

Answer:

Using the formula cards again, add the coefficient of 2 in front of the formula and have them recalculate the number of each element and the total number of atoms in each element.

Explanation:

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3 years ago

A student fires a bow and arrow in gym class and all his arrows land close to each other, but not on the bullseye. This student

dimulka [17.4K]

A student fires a bow and arrow in gym class and all his arrows land close to eachother but not on the bullseye. this student could be said to be:

precise but not accurate

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3 years ago

Anybody Understand this question please help me !

zlopas [31]

Answer:

$m_{Sn}=630.57gSn$

Explanation:

Hello!

In this case, according to the chemical reaction:

$SnO_2+2H_2\rightarrow Sn+2H_2O$

We can evidence the 2:1 mole ratio between hydrogen and tin, thus, we perform the following stoichiometric setup to obtain the mass of produced tin:

$m_{Sn}=21.46gH_2*\frac{1molH_2}{2.02gH_2}*\frac{1molSn}{2molH_2} *\frac{118.71gSn}{1molSn} \\\\m_{Sn}=630.57gSn$

Best regards!

7 0

3 years ago

A 22.4 kg object is accelerating at 1.40 m/s2. What net force is being applied to the object?

kaheart [24]

Answer:

<h3>The answer is 31.36 N</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 22.4 × 1.4

We have the final answer as

Hope this helps you

3 0

3 years ago