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stich3 [128]
3 years ago
6

True or false

Chemistry
1 answer:
m_a_m_a [10]3 years ago
7 0
It is false because seven electrons is a characteristic of the halogen elements
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why are plasmas of great interest to scientists or manufacturers. descride 2 current uses of plasmas and describe 1 way scientis
Helga [31]

<u>Answer:</u>

<u>Plasmas of great interest to scientists or manufacturers as</u>

  • Plasma is electrically charged gases that contain considerable charged particles that can change the behavior of the substance.

<u>Current uses of plasmas:</u>

  • First, it is used to make semiconductors for different types of electronic equipment
  • Secondly, they're used in making transmitters for high-temperature films.

<u>Way scientists and engineers hope to use plasmas in the future:</u>

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6 0
3 years ago
Which of the following organisms would NOT be in the first trophic level of an energy pyramid?
faust18 [17]
dog!

this is because the first energy comes from plants bc they can make their own food— therefore, energy :)
7 0
3 years ago
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Which of the following describes the properties of a substance?
Anestetic [448]
The answer is A how it react with other chemicals


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6 0
3 years ago
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A certain metal M forms a soluble sulfate salt MSO, Suppose the left half cell of a galvanic cell apparatus is filled with a 3.0
bija089 [108]

Answer:

E = 0.062 V

Explanation:

(a) See the attached file for the answer

(b)

Calculating the voltage (E) using the formula;

E = - (2.303RT/nf)log Cathode/Anode

Where,

R = 8.314 J/K/mol

T = 35°C = 308 K

F- Faraday's constant = 96500 C/mol,

n = number of moles of electron = 2

Substituting, we have

E = -(2.303 * 8.314 *308/2*96500) *log (0.03/3)

   = -0.031 * -2

  = 0.062V

Therefore, the voltmeter will show a voltage of 0.062 V

5 0
2 years ago
Which mineral might scratch the mineral fluorite, but would not scratch the mineral amphibole? 1 brucite 2. magnesite 3. carnall
NARA [144]

Answer:

olivine i think

Explanation:

4 0
2 years ago
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