2 years ago

1. What is the mass of zinc in your penny?

Chemistry

1 answer:

koban [17]2 years ago

5 0

Answer:

97.5%

Explanation:

the US mint specifies pennies as 2.5% copper in 97.5% zinc

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kolezko [41]

Answer:

The types of Asexual reproduction include: fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis.

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3 years ago

Calculate the missing variables in each experiment below using Avogadro’s law.

blagie [28]

Answer:

The answer to your question is: letter c

Explanation:

Data

V1 = 612 ml n1 = 9.11 mol

V2 = 123 ml n2 = ?

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$\frac{V1}{n1} = \frac{V2}{n2}$

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2 years ago

Atoms that have a positive or negative electrical charge are called ________.

hjlf

Explanation:

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3 years ago

The mass of an electron is approximately equal to 1 over 1,836 of the mass of 1. a positron 2. a proton 3. an atom of helium 4.

lianna [129]

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3 years ago

Read 2 more answers

What mass of barium chloride, BaCL2, is required to completely precipitate the barium sulfate from 35.0 ml of 0.200 m h2so4?

faltersainse [42]

The balanced equation would be (1)BaCl2 + (1)H2SO4 --> (1)BaSO4 + (2)HCl2
Then you should know that the coefficients stand for moles.
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Also, is this topic stoichiometry?

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3 years ago