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3 years ago

Need help please ASAP

Chemistry

1 answer:

Mashutka [201]3 years ago

8 0

Newton's first law of motion predicts the behavior of objects where all existing forces are balanced. Objects at equilibrium will not accelerate. Also, an object will only accelerate if there is a net or unbalanced force acting upon it. The presence of an unbalanced force will accelerate an object - changing its speed, its direction, or both its speed and direction.

Newton's second law of motion: behavior of objects for and all existing forces are not balanced. The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

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Ethanol has the chemical formula C2H5OH. Write and balance the chemical reaction for the combustion of ethanol

worty [1.4K]

Answer:

C2H5OH(l)+3O2(g)⟶2CO2+3H2O(l)

Explanation:

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3 years ago

the diameter of a hydrogen atom is about 1.05 cross times 10 to the power of negative 10 end exponentmeters. a protein molecule

Leni [432]

As a result, the protein molecule is 315 x 10^-9 metres long.

<h3>What does a hydrogen atom contain?</h3>

The hydrogen atom is the most fundamental of all atoms because it just contains one proton and one electron.
In addition to this most common isotope, the hydrogen atom can also be found in protium, deuterium, and tritium.
Hydrogen, denoted by the letter H, has the first atomic number among the lightest elements.

<h3>How do you describe a hydrogen atom?</h3>

There are three known hydrogen isotopes.
Hydrogen has isotopes with masses of 1, 2, and 3, with mass 1 being the most common.
This isotope is also referred to as protium and hydrogen in everyday language (symbol H, or 1H).

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2 years ago

Which image shows 2-hexyne?

MaRussiya [10]

Answer: C

Explanation:

A. Shows 3-Hexyne (NOT 2-HEXYNE)

B. Shows 7 carbons (too many) (NOT 2-HEXYNE)

C. Shows a triple bond (yne) and 6 carbons and it's on the second carbon (2-HEXYNE)

D. Shows two substitent on the second carbon but the triple bond is on the 3rd carbon so it's 2,2-dimethyl-3-heptyne (NOT 2-HEXYNE)

4 0

3 years ago

CaC2 + 2H2O ⟶ C2H2 + Ca(OH)2

kondaur [170]

0.499 mol

Explanation: M(CaC2) = 64.1 g/mol, n= m/M = 32.0 g/ 64.1 g/ mol= 0.499 mol

Amount of Calcium hydroxide Is same

7 0

3 years ago

3. A reaction produces 14.2 grams of a product. The theoretical yield of that product

nlexa [21]

A reaction that produces 14.2 grams of a product and the theoretical yield of that product is 17.1 grams is true for the following statements :

The percent yield of the product is 83.0%

The actual yield of the product is 14.2 grams.

<h3>Percentage Yield:</h3>

Percent yield is the percent ratio of actual yield to the theoretical yield.

Mathematically,

percent yield = actual yield / theoretical yield x 100%

actual yield = 14.2 grams

theoretical yield = 17.1 grams

percentage yield = 14.2 / 17.1 × 100%

percentage yield = 83.0409356725 %

percentage yield = 83.0 %

Therefore,

The percent yield of the product is 83.0%

The actual yield of the product is 14.2 grams.

learn more on percentage yield here; brainly.com/question/4180677

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3 years ago