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GREYUIT [131]
4 years ago
13

How many protons neutrons and electrons does zinc 66 have?

Chemistry
1 answer:
Liula [17]4 years ago
6 0
Zinc will always have 30 protons, so you'd have 66-30 = 36 neutrons

I hope it helped you!
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While ALL the information in a Schumer Box is important, which items do you think matter most on a day-to-day basis?
Oksana_A [137]

Answer:

The most important information is: financial charges, annual fees, minimum payments and how the balance is calculated.

Explanation:

A Schumer Box is a table where the credit card companies disclose all the terms and conditions necessary to make a contract with them, as well as disclose all fees, charges, balances and elements that make up the credit card.

All information shown on a Schumer Box is important, but the most important is that which deals directly with the customer's money or balance. This information is: financial charges, annual fees, minimum payments and how the balance is calculated.

3 0
3 years ago
How many grams of lithium are in a 1320 [mAh] cell phone battery? Note that [mAh] is a unit of charge.
AURORKA [14]

Answer:

0.396 grams of lithium

Explanation:

Lithium-ion batteries have the main feature of using lithium salts as a "bridge" between the positive pole (anode) to the negative (cathode) to allow the passage of energy that will give life to our device. In the case of lithium polymer batteries, the difference is that the lithium salt is contained in a polymer, or gel, to keep it safe from spills.

In both cases, when the battery is discharging, lithium ions travel from the cathode to the anode through their "bridges" to supply the energy until all the ions are in the anode, it is at this time when the battery is out of stock The ions travel in the opposite direction during charging (from the anode to the cathode).

<u>The calculation used to determine the amount of lithium that the lithium cell batteries have is as follows</u>:

0.3 x amp hour capacity = g of lithium

where amp hour = Ah

<u>In our case</u>:

0.3 x 1.32 = 0.396 g of lithium

5 0
3 years ago
What is the density of a 12.475g piece of metal that causes the level of water in a graduated cylinder to rise from 5.0 to 6.1 m
Elan Coil [88]

Answer:

11.3 g/mL.

Explanation:

  • Density is a characteristic property of a substance.
  • The density of a substance is the relationship between the mass of the substance and the volume it takes up.

<em>d = m/V,</em>

where, d is the density of the metal,

m is the mass of the metal (m = 12.475 g),

V is the volume that the metal takes up (V = 6.1 mL - 5.0 mL = 1.1 mL).

<em>∴ d = m/V =</em> (12.475 g)/(1.1 mL) = <em>11.34 g/mL ≅ 11.3 g/mL.</em>

<em>The significant figures has its rules in the calculations; the result has a significant figures to the lowest no. of significant figures (1.1 has two significant figures, while 12.475 has 5 significant figures), so the result should have only 2 significant figures.</em>

6 0
3 years ago
How many Faradays of electricity are carried by 1.505×10^23 electronsk​
aksik [14]

Mole of electron required by 1.505 *10^{23} mole is 2.5* 10  ^{-1}

  • Faraday law expressed how the  change that is been being produced by a current at an electrode-electrolyte interface is related and  proportional to the quantity of electricity  that is been used.

  • There is one mole of electron required for 1 Faraday of electricity.

  • Avogadro constant is 6.02*10^{23}

  • Mole of electron can be calculated by dividing the number of electron by avogadro's constant.

=\frac{1.505*10^{23} }{6.02*10^{23} }

= 2.5* 10^{-1}  Faraday  of electricity

Therefore, it requires  2.5*10^{-1} Faraday of electricity for the 1.505 *  10^{23}  mole.

Learn more at: brainly.com/question/1640558?referrer=searchResults

3 0
2 years ago
What is a negatively charged subatomic particle?
zvonat [6]
I think its electrons
5 0
4 years ago
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