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3 years ago

Explain how you determine molar mass of Ca(No3)2

Chemistry

1 answer:

igor_vitrenko [27]3 years ago

8 0

Answer:

164

1st step we will write desperate molar mass of each element

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What are the chemical symbols for the two elements found in iron oxide

Gnom [1K]

For Iron: $Fe$

For Oxygen: $O$

These are the two chemical symbols for the two elements found in Iron Oxide.

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2 years ago

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Difference between NaOH and HCI

morpeh [17]

Compare HCl, NaOH, and NaCl: HCl is a stronger acid than water. NaCl is a weaker base than NaOH. Strong acids react with strong bases to form weaker acids and bases. ... Compare NaOH, NH3, and H2O, and NH4Cl: NaOH is a stronger base than NH3.

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2 years ago

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(Digestion, Intestine, Bile)is secreted by the liver to help in the breaking down of food particles.

Yuri [45]

Answer:

Bile

Explanation:

Bile is secreted by the liver to help in the breaking down of food particles.

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1 year ago

You're at the zoo and have a big red 1.80 L helium balloon. The barometric pressure today is 785 mmHg. Then you hear the roar of

fomenos

Answer: The volume of the balloon up there is 6.192 L.

Explanation:

Given: $V_{1}$ = 1.80 L, $P_{1}$ = 785 mm Hg (mm Hg = 0.00131579) = 1.032 atm

$P_{2}$ = 0.300 atm, $V_{2}$ = ?

Formula used to calculate volume is as follows.

$P_{1}V_{1} = P_{2}V_{2}$

Substitute the value into above formula as follows.

$P_{1}V_{1} = P_{2}V_{2}\\1.032 atm \times 1.80 L = 0.300 atm \times V_{2}\\V_{2} = 6.192 L$

Thus, we can conclude that the volume of the balloon up there is 6.192 L.

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2 years ago

__________ have an electric charge of -1.60 × 10-19 C (-e).

nignag [31]

Answer:

Electrons have an electric charge of -1.60 × 10-19 C

Explanation:

Neutrinos and Neutrons have 0 e charge.

Protons have an electric charge of 1.60 × 10-19 C

Historically, electrons were assigned a negative charge

6 0

2 years ago