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3 years ago

Why do you think the transition metals are 10 columns wide?

2 answers:

4 0

The transition metals are 10 columns wide because they can hold no more than 10 electrons. This is why their width correlates with the number of electrons that are included in these metals. Transition metals include most commonly used metals, such as iron, copper, silver, and gold.

e-lub [12.9K]3 years ago

4 0

Learning and teaching resource for Transition Metals written by PhD ... These d-block elements are the short columns in the center of the periodic ... The group 10 members are nickel (Ni), palladium (Pd), and platinum (Pt). ... elements do have low ionization energies, however, so they exhibit a wide ... Think of a magnet.Transi

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What volume of a 0.00945-M solution of potassium hydroxicce would be required to titrae 50.00mL of a sample of acid rain with a

Zepler [3.9K]

Answer: The volume of HBr solution required is 130.16 mL

Explanation:

To calculate the concentration of base, we use the equation given by neutralization reaction:

$n_1M_1V_1=n_2M_2V_2$

where,

$n_1,M_1\text{ and }V_1$ are the n-factor, molarity and volume of acid which is $H_2SO_4$

$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is $KOH$

We are given:

$n_1=2\\M_1=123\times 10^{-4}M=0.0123M\\V_1=50mL\\n_2=1\\M_2=0.00945M\\V_2=?mL$

Putting values in above equation, we get:

$2\times 0.0123\times 50=1\times 0.00945\times V_2\\\\V_2=130.16mL$

Hence, the volume of KOH solution required is 130.16 mL

5 0

4 years ago

Help plz !!!!!!!!!!!!

melamori03 [73]

Heat given off by burning coal is Potential Energy and Laser Light is Kinetic Energy.

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3 years ago

What is pH?

Viktor [21]

I think the answer A or C

8 0

3 years ago

How could you calculate the number of grams of O2 needed to completely react with a certain amount of ethane?

natima [27]

First, write out a complete balanced reaction for the combustion of ethane, ethane + O2 -> CO2 + H20. Then, divide the grams of ethane by its Molar Mass and multiply by 32, the molar mass of O2.

3 0

3 years ago

A firefighter applies a force of 2 N to lift the fire hose 3 meters up a ladder to put out a fire. How much work has the firefig

Paraphin [41]

Answer:

6 J

Explanation: Work done(J) = Force(N) × Distance(m) along the direction of force.

Given, Force=2 N, Distance=3 meters

∴ Wok done (J) = 2 × 3 = 6 J.

5 0

4 years ago

Read 2 more answers