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den301095 [7]
3 years ago
12

Why are metals good conductors of electrical current?

Chemistry
2 answers:
Marina86 [1]3 years ago
7 0
I believe the answer is A
Electrons can flow freely in metals.
yarga [219]3 years ago
6 0
A. Electrons can flow freely through metal
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What are all the ways that you think knowing about the flow of energy might be useful in
Kaylis [27]

Yes the main benifit can be recyclation of energy

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  • The chemical energy present inside the battery can be used to convert itself into electric energy.
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4 0
2 years ago
An ion with 11 protons 12 neutrons and a charge of + 1 has an atomic number of
posledela

Answer:

11 electrons total and 23amu

Explanation:

This tells us that sodium has 11 protons and because it is neutral it has 11 electrons. The mass number of an element tells us the number of protons AND neutrons in an atom (the two particles that have a measurable mass). Sodium has a mass number of 23amu.

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3 years ago
HRISTINA HERRERA: Attempt 1
Lunna [17]

Answer:

7.5 g of hydrogen gas reacts with 50.0 g oxygen gas to form 57.5 g of water.

Explanation:

Here we have the check if the mass of the reactants is equal to the mass of the products.

Reactants

7.5+50=57.5\ \text{g}

Products

57.5\ \text{g}

The data is consistent with the law of conservation of matter.

Reactants

50+243=293\ \text{g}

Products

206+97=303\ \text{g}

The data is not consistent with the law of conservation of matter.

Reactant

17.7+34.7=52.4\ \text{g}

Products

62.4\ \text{g}

The data is not consistent with the law of conservation of matter.

Only the first data is consistent with the law of conservation of matter.

8 0
3 years ago
In which way are photosynthesis and cellular respiration different?
Lyrx [107]

Answer:

D. Photosynthesis uses carbon dioxide while cellular produces carbon dioxide

3 0
3 years ago
Read 2 more answers
How many significant digits are in 89015
Lilit [14]

Answer:

Total 5 significant digits.

Explanation:

Significant digits are the numbers that give a meaningful contribution. For example, digit 013 has the 2  significant digits and zero is not a significant digit because digits 1 and 3 give meaningful contribution but digit zero does not value meaningful contribution. Similarly, the 89015 has a total of 5 significant digits and these digits are the 8, 9, 0, 1,  and 5.

6 0
3 years ago
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