4 years ago

If atoms contain charged particles, why do they not have a charge?

1 answer:

3 0

Answer:

every atom has no overall charge. because they contain equal numbers of positive protons and negative electrons. they cancel each other out making them a neutral atom.

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How often do girls normally experience menstruation a.once every 30 days b. once every 29 c.once every 28 d.once every 27

kramer

Answer:

i think answer is a, every 30 days

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3 years ago

Read 2 more answers

Calculate the number of moles in 200 grams of Sodium hydroxide

TEA [102]

Answer:

The answer is 5 mol

Explanation:

Number Of Moles = Mass Of Substance ÷ Mass Of One Mole

Mass of NaOH = Molar Mass of Sodium + Oxygen + Hydrogen

23 + 16 + 1

40 g/mol

Number of Mole = 200/40 = 5 mol

Thus, The number of Moles in 200 grams of Sodium hydroxide is 5 mol

<u>-TheUnknownScientist 72</u>

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3 years ago

Is 2Na+Cl2=2NaCl a balanced chemical equation

lilavasa [31]

Hey there!

2Na + Cl₂ → 2NaCl

This is a balanced chemical equation.

There are 2 atoms of sodium (Na) on the left, and 2 atoms of sodium (Na) on the right.

There are 2 atoms of chlorine (Cl) on the left, and 2 atoms of chlorine (Cl) on the right.

This means the equation is balanced since there are the same amount of each element on both sides.

Hope this helps!

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3 years ago

What is the period and atomic number of the atom with atomic number 46

UNO [17]

Answer:

Atomic number: 46

period : 5

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3 years ago

Convert 790 calories to Joules.

Darya [45]

To convert 790 calories to joules

3305.36 joules

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3 years ago