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Zinaida [17]
3 years ago
9

Please help answer this. And please no links!​

Chemistry
1 answer:
zhenek [66]3 years ago
6 0

Answer:

i am not sure but its 2 ican"t qry

Explanation:

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Please help! I will give brainilist........
Annette [7]

Answer:

IT IS D because lights are heated and it gives light!

4 0
2 years ago
How many of each subatomic particle type does each of the following atoms contain: a. 90_Ag b. barium-132
Kryger [21]

<u>Answer:</u> Silver has 47 electrons, 47 protons and 43 neutrons. Barium has 56 electrons, 56 protons and 76 neutrons.

<u>Explanation:</u>

Atomic number is defined as the number of protons or electrons that are present in a neutral atom.

Atomic number = number of protons = number of electrons

Mass number is defined as the sum of number of protons and neutrons that are present in an atom.

Mass number = Number of protons + Number of neutrons

  • <u>For Silver:</u>

Atomic number = 47

Mass number = 90

Atomic number = Number of protons = Number of electrons = 47

Number of neutrons = Mass number - Atomic number = 90 - 47 = 43

Hence, silver has 47 electrons, 47 protons and 43 neutrons.

  • <u>For Barium:</u>

Atomic number = 56

Mass number = 132

Atomic number = Number of protons = Number of electrons = 56

Number of neutrons = Mass number - Atomic number = 132 - 56 = 76

Hence, barium has 56 electrons, 56 protons and 76 neutrons.

7 0
3 years ago
Which causes genetic variations and can result in different alleles? O predation rate O random mutations O competition o environ
alekssr [168]

Answer:

B

Explanation:

3 0
3 years ago
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Two important ways that energy is transported in the world around us is through __________ and _________.
lana66690 [7]
The two ways that energy can be transferred are by doing work and by heat transfer.
8 0
3 years ago
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Is neon transparent translucent or opaque
irinina [24]

Answer: Opaque hope this is helpful

Send a brainliest if this was helpful :)

5 0
3 years ago
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