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sergiy2304 [10]
3 years ago
6

Several properties of water are shown. Classify each property as a PHYSICAL property or a CHEMICAL property.

Chemistry
2 answers:
BaLLatris [955]3 years ago
7 0

Explanation:

A property which brings no change in chemical composition of a substance is known as a physical property.

For example, size, mass, density etc are physical property.

Whereas a property which brings change in chemical composition of a substance is known as a chemical property.

For example, reactivity, toxicity are chemical properties.

Therefore, classify the given properties as follows.

  • Can be split into hydrogen and oxygen - chemical property.
  • Is liquid at room temperature - physical property.
  • Has density of 1.0 g/cm^3 - physical property.
  • Reacts with certain metals - chemical property.

Verizon [17]3 years ago
4 0

Splitting is chemical liquid at room temp is physical density is physical and reactions are chemical

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Under conditions of "feasting", the body favors oxidation/utilization of which source for energy production
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During feasting, there is an increase in the supply of carbohydrates, fats and proteins in the body. Since these macronutrients are in excess, carbohydrates and proteins are utilized or oxidized as a source for energy production. On the otherhand, fats are accumulated as the rate of oxidation of this source does not increase during feasting. 


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3 years ago
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A fixed amount of oxygen gas is held in a .500 L tank at a pressure of 4.39 atm. The tank is connected to an empty 1.50 L tank b
DochEvi [55]

Answer:

1.0975 atm.

Explanation:

<em>According to Boyle’s Law:</em> " At constant temperature , the  volume of a given quantity of a gas  varies inversely with its pressure".

P α 1/V.

<em>∴ P₁V₁ = P₂V₂.</em>

P₁ = 4.39 atm, V₁ = 0.5 L.

P₂ = ??? atm, V₂ = 2.0 L.

<em>∴ P₂ = P₁V₁/V₂</em> = (4.39 atm)(0.5 L) / (2.0 L) = <em>1.0975 atm.</em>

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3 years ago
If you were to test how much time it takes to melt a piece of ice in warm water, what are
77julia77 [94]
Time, Ice size, water temp
8 0
3 years ago
C6H12O6(s) + 6O2(g) --&gt; 6H2O(g) + 6CO2(g)
vredina [299]
One
Balance the Equation.
This has been done for you or it is given. Anyway this step is finished, but it must always be done.

Two
Find the molar mass of C6H12O6
6C = 6 * 12 = 72
12H = 12*1 = 12
CO = 6 * 16 = 96
Mol Mass = 180 grams / mol

Three
Find the mols of C6H12O6
n = ???
Molar Mass = 180 grams / mol
given mass = 13.2 grams.

n = given mass / molar mass
n = 13.2 / 180
n = 0.07333333 mols.

Four
Find the mols CO2
1 mol C6H12O6 will produce 6 mols CO2
0.0733333 mols will produce x

1/0.073333 = 6/x Cross multiply
x = 0.073333 * 6
x = 0.4399 moles.

Five
Find the volume given the conditions for temperature and pressure are STP conditions.
PV = nRT
R = 0.082057 
n = 0.43999
P = 1 atmosphere
T = 0 + 273 = 273
V = ???
1 * V = 0.43999 * 082057 * 273
V = 10.2 L
Answer: B

Note if you give out Brainly awards I'd sure appreciate one. This was a lot of typing


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What type of bond is H2Se
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