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Snowcat [4.5K]
3 years ago
7

Measures typically mill at different temperatures in the pier substances they are composed of brass is a mixture of copper and

zinc Imosa different temperature between 120°C and 1030°C why am I different samples of brass melt at different temperatures
Chemistry
1 answer:
wlad13 [49]3 years ago
7 0

Answer:

u mom is gaaagg

snjwjwjwwwne

Explanation:

why sijsjejee

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Use the atom builder interactive to identify each nucleus. Two protons represented as purple spheres and one neutron represented
aleksandr82 [10.1K]

Answer:

\frac{3}{2}He

\frac{6}{2} He

\frac{7}{4}Be

\frac{3}{1} H

\frac{6}{4}Be

\frac{7}{3} Li

Explanation:

In the first nucleus we are told that there are two protons and one neutron. Let us remember that the mass number = number of protons + number of neutrons.

This implies that, for the first specie the mass number is 3, for the second specie the mass number is 6 and the third specie has a mass number of 7 and so on. The mass number is indicated as a superscript.

The atomic number is the number of protons in the nucleus of the atom and helps us to identify the atom. It is always written as a subscript as shown.

5 0
3 years ago
4. A galvanic cell is formed when two metals are immersed in solu- tions differing in concentration 1 when two different metals
Vanyuwa [196]

A galvanic cell is formed when two metals are immersed in solutions differing in concentration, when two different metals are immersed.

<h3><u>What is a </u><u>Galvanic</u><u> </u><u>cell</u><u> ?</u></h3>
  • In order to provide a pathway for the flow of electrons along that wire, the galvanic cell makes use of the ability to split the flow of electrons during the oxidation and reduction processes.
  • It forces a half-reaction and connects each to the other with a wire.
  • A galvanic cell is an electrochemical device that converts chemical redox reaction energy into electrical energy.
  • Electrically, it has a potential of 1.1 V. Oxidation takes place at the anode, which is a negative plate in galvanic cells. It is a positive plate where the reduction happens.
  • An electrochemical device called a galvanic cell transforms chemical energy's free energy into electrical energy. A photogalvanic cell produces species that are photochemically reactive.

To view more questions about galvanic cell, refer to:

brainly.com/question/13031093

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5 0
2 years ago
The part that includes land and water ​
luda_lava [24]

Answer: this is all of it

Explanation: i know this because its all of it

6 0
3 years ago
Read 2 more answers
2. How many moles of carbon dioxide, CO2, are in a 22 gram sample of the compound?
kotykmax [81]
To find the amount of moles in a molecule you divide the grams of the substance by the molar mass.
molar mass of CO2 = 44.01 g
22g / 44.01 = 0.50 moles CO2
4 0
3 years ago
Which best explains why scientific theories grow stronger over time?
Liono4ka [1.6K]
A is the right answer
6 0
3 years ago
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