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3 years ago

HELP PLEASE :D

Chemistry

1 answer:

ivanzaharov [21]3 years ago

8 0

$\bold{Heya~!}$

For the first drop down.

Your answer will be is :

<h3>C. Normal force. </h3>

And, the second drop down.

Your answer will be is :

<h3>B. The puck will move off in a different direction.</h3>

Hope It Helps ! ~

#LearnWithBrainly

$\underline{Answer~:}$

Jace ~

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How many oxygen atoms are present in 3 grams of glucose

luda_lava [24]

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3 years ago

Find the mass of 3.60x10^24 atoms of magnesium?

Arturiano [62]

Answer:

The answer to your question is 8.75 x 10 ²⁵ atoms of Magnesium

Explanation:

Data

Atomic mass of Magnesium = 24.31 g

Atoms of magnesium = 3.60 x 10²⁴

Process

Solve this porblem using a rule of three

1 atom of Magnesium --------------- 24.31 g

3.60 x 10²⁴ ---------------- x

x = (3.60 x 10²⁴ x 24.31) / 1

x = 8.75 x 10 ²⁵ atoms

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4 years ago

HURRY! Carbon and oxygen combine to form carbon dioxide. What are the products, or what is the product, in this chemical reactio

omeli [17]

Carbon dioxide I’m pretty sure

7 0

3 years ago

Read 2 more answers

Using this balanced equation: 2 NaOH + H2SO4 —> H2O + Na2SO4

mars1129 [50]

<h3>Answer:</h3>

266.325 g

<h3>Explanation:</h3>

We are given the balanced equation;

2NaOH + H₂SO₄ → H₂O + Na₂SO₄

Mass of NaOH as 150 g

We are required to determine the mass of Na₂SO₄ that will be formed.

<h3>Step 1: Determine the number of moles of NaOH</h3>

Moles = Mass ÷ molar mass

Molar mass of NaOH is 40.0 g/mol

Therefore;

Moles of NaOH = 150 g ÷ 40 g/mol

= 3.75 moles

<h3>Step 2: Determine the number of moles of sodium sulfate formed</h3>

From the equation 2 moles of NaOH reacts with sulfuric acid to form 1 mole of sodium sulfate.
Therefore; mole ratio of NaOH : Na₂SO₄ is 2 : 1

Thus, moles of Na₂SO₄ = Moles of NaOH ÷ 2

= 3.75 moles ÷ 2

= 1.875 moles

<h3>Step 3: Determine the mass of Na₂SO₄ produced.</h3>

we know that;

Mass = Moles × Molar mass

Molar mass of Na₂SO₄ is 142.04 g/mol

Therefore;

Mass of Na₂SO₄ = 1.875 moles × 142.04 g/mol

= 266.325 g

Thus, the mass of sodium sulfate formed 266.325 g

7 0

3 years ago

a 4.4 g sample of gas occupies 2.24 l of volume at stp. without thinking too hard, what is the mw of the gas, and name two gases

garri49 [273]

As a result, gas's molecular weight is 44g/mol. It is the gas's (Carbon dioxide) molecular weight.

What is Molecular Weight?

The total atomic weights of the atoms in a molecule are measured by its molecular weight. To calculate stoichiometry in chemical equations and reactions, chemists employ molecular weight. M.W. or MW are two frequent abbreviations for molecular weight. Atomic mass units (amu), Daltons, or a unitless expression can be used to indicate molecular weight (Da).

The mass of the isotope carbon-12, which is given a value of 12 amu, serves as the reference point for defining both atomic weight and molecular weight. Because there are many carbon isotopes, the atomic weight of carbon is not exactly 12.

A mole of any gas at STP takes up a volume of 22.4l

at STP, a gas fills a volume of 2.24l

Calculating the quantity of moles of gas in step two

Consequently, the amount of gas in moles

= 0.1 moles

This is equivalent to carbon dioxide's molecular weight.

=44g/mol

As a result, gas's molecular weight is 44g/mol. It is the gas's (Carbon dioxide) molecular weight.

Learn more about Molecular Weight from given link

brainly.com/question/837939

#SPJ4

7 0

1 year ago