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alexgriva [62]
3 years ago
14

Properties describe matter phsical or chemical​

Chemistry
2 answers:
scZoUnD [109]3 years ago
8 0

Answer:

Physical matter

Explanation:

Wewaii [24]3 years ago
6 0

Answer:

Properties describe physical matter.

Explanation:

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Which of the following is an oxide which is strongly acidic?
borishaifa [10]

Answer:

answer of your question is 4th

Explanation:

P205

3 0
3 years ago
Propane (c3h8) is burned in oxygen to produce carbon dioxide and water. the heat of combustion of propane is -2012 kj/mole. how
Olegator [25]
C_{3} H_{8} + 5 O_{2} ---\ \textgreater \  3CO_{2}  +4H_{2}O    (-2012 \frac{kJ}{mol} )


3 mol                10 mol


C_{3}H_{8} is /excess /reactant

because 3 mol propane require 15 mol oxygen (by reaction)

5 mol oxygen ---1 mol propane, so

10 mol oxygen ---2 mol propane

Only 2 mole propane will be burned,

so 

2012 ( kJ/mol)*2 mol =4024 KJ heat will be given off

Correct answer is number 4.



5 0
3 years ago
What is the total electrons needed for an Octet of SiCL4?
Juli2301 [7.4K]

Answer:4 pairs of electrons

Explanation: SiCl4 is a tetrahedral because it has four pairs of electrons.

4 0
4 years ago
6
Butoxors [25]

Answer:

the 6 stands for the atomic number

the 12.01 stands for the atomic mass

6 0
3 years ago
A gas occupies a 1.5 L container at 25 degrees Celsius and 2.0 atm. If the gas is transferred to a 3.0 L container at the same t
harkovskaia [24]

To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant temperature and number of moles of the gas the product of PV is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

P1V1 =P2V2

P2 = P1 x V1 / V2

P2 = 2.0 x 1.5 / 3

<span>P2 = 1 atm</span>

4 0
3 years ago
Read 2 more answers
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