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Eva8 [605]
3 years ago
7

How many protons and neutrons does Polonium-211 have?​

Chemistry
1 answer:
Stells [14]3 years ago
3 0

Answer:

Protons: 84

Neutrons: 127

Explanation:

The number of protons is the atomic number. The number of neutrons can be found by subtracting the proton number (84) from the isotope number (211)

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1 How does a hydroelectric plant work to produce electricity? List the steps below.
Jet001 [13]

Answer:

1. -Hydropower plants capture the energy of falling water to generate electricity

  -a turbine converts the kinetic energy of falling water into mechanical energy.

  - a generator converts the mechanical energy from the turbine into electrical energy.

2. In the case of a wind-electric turbine, the turbine blades are designed to capture the kinetic energy in wind. The rest is nearly identical to a hydroelectric setup: When the turbine blades capture wind energy and start moving, they spin a shaft that leads from the hub of the rotor to a generator.

Explanation:

hope this kinda helped.

7 0
3 years ago
How many calories of are required to heat 731 grams of water from 35°c to 83°c? (assume that the specific heat of water is 1.00
marysya [2.9K]
Q=McDeltaT
Q=731g×1.00cal/g°c×(83°c-35°c)
Q=35088cal
therefore, their are 35088 calories are required to heat up 731g of water.
4 0
3 years ago
Read 2 more answers
Which landform is part of the cryosphere
Alona [7]
Glacier is apart of the cryospehere. cryospere is made up of ice
7 0
3 years ago
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Sulfuric acid (h2so4) is spilled on a laboratory bench. which chemical would be useful for neutralizing the acid
marysya [2.9K]
Sulphuric acid (H2SO2) is a dibasic acid. It generated H+ ions when dissolved in water. In order to neutralize an acid, a base containing hydroxy ion (OH-) will be required. 

NaOH, Ca(OH)2, KOH, etc. can be used to neutralize H2SO4.

If NaOH is used as a base, following reaction is initiated.

2NaOH     +      H2SO4      →     Na2SO4     +     H2O     
 (base)                (acid)                  (salt)
8 0
3 years ago
The solid has a mass of 180 g. What is the den of the solid?
Alja [10]
Density requires at least two things. In this case we would need volume of the object in addition to the mass. Density is equal to the mass divided by volume p = V/m
6 0
3 years ago
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