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3 years ago

Name at least 2 some common chemical property of matter

Physics

1 answer:

Elden [556K]3 years ago

3 0

Answer:

they're divided in two ways extensive/intensive or physical/chemical

intensive properties do not depend on the amount of matter this includes (boiling point and color)

extensive properties depend on the amount of matter that is being measured (mass, and volume)

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The boiling point of ethanol is 78 ��

34kurt

The conversion for Kelvin from Celsius is simple since the units change at same rate (degree for degree) but haven't different zero reference. The Kelvin scale represents absolute zero. The celcius scale moves degree per degree with kelvin scale but has a zero based on freezing point of water. The conversion is 273 + (temperature in celcius) = temperature on kelvin scale. Note 273 is a rounded number to nearest whole number. The actual figure is a number with decimal. 273.15 can also be used if you want more significant figures.

so 273 + 78C = 351 K

7 0

3 years ago

This is for physical science. Can someone help me?

Radda [10]

A. 320 g
B. 160 g
C. 80 g
D. 40 g

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3 years ago

Read 2 more answers

The temperature coefficient of a certain conducting material is 5.74 × 10-3 (°C)-1. (a) At what temperature would the resistance

Alex777 [14]

Answer:

Temperature at which the resistance is twice the resistance at $20^{\circ}C$ is $194.216^{\circ}C$

Solution:

As per the question:

Temperature coefficient, $\alpha = 5.74\times 10^{- 3}^{\circ}C$

Reference temperature, $T_{o} = 20^{\circ}C$

Resistance, $R_{t} = 2R_{o}$

Now, using the formula:

$R_{t} = R_{o}(1 + \alpha \Delta T)$

$2R_{o} = R_{o}(1 + \alpha \times (T _ T_{o}))$

$2 = 1 + 5.74\times 10^{- 3}\times (T - 20^{\circ})$

$\frac{1}{5.74\times 10^{- 3}} = T - 20^{\circ}$

$T = 174.216 + 20 = 194.216^{\circ}$

Yes, this temperature holds for all all the conductors of copper, irrespective of the size and shape of the conductor.

5 0

3 years ago

What is the difference between heat capacity and specific heat capacity? I want the meaning please.

charle [14.2K]

Answer:

The heat capacity of a body is defined as the heat required to raise it's temperature by me degree or one kelvin.while specific heat capacity of a substance is defined as the heat required to the temperature of a unit mass of it through one degree or one kelvin.

I hope it helps

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3 years ago

A 28 kg rock falls freely near the surface of the Earth. Approximately how much gravitational force is exerted by the Earth on t

ValentinkaMS [17]

Answer :Force is exerted by the Earth on the rock is 280 N .

Given :

Mass of rock falling falling , m = 28 kg .

Acceleration due to gravity , $g=10\ m/s^2$ .

We need to find the force exerted by the earth on the rock .

Let force exerted be F .

Now , we know by Newton's Law Of Motion .

F = ma .......( 1 )

Here , m is mass and a is acceleration in this case it is $g=10\ m/s^2$ .

Putting all these value in equation( 1 ) we get ,

$F=28\times 10\\\\F=280\ N$

Therefore, this is the required solution .

4 0

4 years ago

Name at least 2 some common chemical property of matter​

Name at least 2 some common chemical property of matter