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liq [111]
3 years ago
9

Hydrogen is a pure substance represented by the chemical symbol H. Which of the following best describes hydrogen?

Chemistry
1 answer:
Soloha48 [4]3 years ago
3 0

Answer:

B is the answer

Explanation:

Because it a molecular mass of one

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What is the molarity of a solution that contain 1.1 miles of lithium in 0.5 liters of solution
Solnce55 [7]
1.1 Moles / 0.5 Liters = 0.22 Molarity
4 0
3 years ago
Help?
tino4ka555 [31]

Answer:

There is 52.33 grams of water produced.

Explanation:

Step 1: Data given

Mass of propane burned = 32.00 grams

Molar mass of propane = 44.1 g/mol

Oxygen is in excess

Molar mass of water = 18.02 g/mol

Step 2: The balanced equation

C3H8 + 5O2 → 4H2O + 3CO2

Step 3: Calculate moles of propane

Moles of propane = mass propane / molar mass of propane

Moles of propane = 32.00 grams / 44.1 g/mol

Moles of propane = 0.726 moles

Step 4: Calculate moles of H2O

Propane is the limiting reactant.

For 1 mol of propane consumed, we need 5 moles of O2 to produce 4 moles of H2O and 3 moles of CO2

For 0.726 moles of propane we'll have 4*0.726 = 2.904 moles of H2O

Step 5: Calculate mass of H2O

Mass of H2O = moles of H2O * molar mass of H2O

Mass of H2O = 2.904 moles * 18.02 g/mol

Mass of H2O = 52.33 grams

There is 52.33 grams of water produced.

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3 years ago
On number 2 if the atom has 3 protons,4 neutrons and 3 electrons what is the charge of the atoms nucleus?
laila [671]
0 is the correct answer.
7 0
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What if the volume of the cylinder?
Rzqust [24]

Answer:

653.45

Explanation:

pi * 4 by the power of 2 * 13 ~653.45

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A volcano forms near a tectonic plate boundary. What can you infer about the formation of this volcano?
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Answer: There are three main places where volcanoes originate: Hot spots, Divergent plate boundaries (such as rifts and mid-ocean ridges), and. Convergent plate boundaries (subduction zones)

Explanation:

Volcanoes often form in the areas where tectonic plates make contact. The friction created between two plates by the constant movement melts the Earth's crust, causing the rock underneath the crust to turn into magma due to the great temperatures created by friction. ... Volcanoes may be formed at subduction zones

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2 years ago
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