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RSB [31]
3 years ago
14

A mixture is -

Chemistry
1 answer:
Studentka2010 [4]3 years ago
4 0
B. a physical combination of two or more different materials.
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Choose all the correct information concerning chemical reactions: Involves small amounts of energy. Some of the mass is converte
suter [353]
<span>A chemical reactions :
Involves small amounts of energy.
</span><span> Only electrons are involved.
</span><span>The mass remains the same.</span>
8 0
3 years ago
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Lab: Magnetic and Electric Fields Step 3: Determine the Polarity of Magnets
Yakvenalex [24]

Answer:

hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii

Explanation:

8 0
3 years ago
A sample of neon gas occupies 105 L at 27°C under a pressure of
Viefleur [7K]

Answer: Volume occupied by given neon sample at standard condition is 123.84 L.

Explanation:

Given: V_{1} = 105 L,    T_{1} = 27^{o}C = (27 + 273) K = 300 K,     P_{1} = 985 torr

At standard conditions,

T_{2} = 273 K,     P_{2} = 760 K,        V_{2} = ?

Formula used to calculate the volume is as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}

Substitute the values into above formula as follows.

\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{985 torr \times 105 L}{300 K} = \frac{760 torr \times V_{2}}{273 K}\\V_{2} = \frac{94116.75}{760} L\\= 123.84 L

Thus, we can conclude that volume occupied by given neon sample at standard condition is 123.84 L.

8 0
3 years ago
What is the net force acting on a 3000g sled that accelerated at 5 m/s2 ?
user100 [1]

Answer:

<h2>15 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question

3000 g = 3 kg

We have

net force = 3 × 5 = 15

We have the final answer as

<h3>15 N</h3>

Hope this helps you

5 0
3 years ago
1. Water is easily contaminated by both biological and chemical contaminants. Define and give 3 examples of each
tamaranim1 [39]
Are there options like A,B,C,D?

7 0
3 years ago
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