2 years ago

What are some examples of homogeneous mixtures

Chemistry

2 answers:

kati45 [8]2 years ago

4 0

Answer: Apple juice is correct c:

Ivanshal [37]2 years ago

3 0

Answer:

Milk

Glue

Pudding

Paper

Plastic

Explanation:

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Which of there is an indication that a chemical reaction has occurred?

Komok [63]

Answer is (b) , because a chemical change happened

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2 years ago

Coffee is homogeneous. heterogeneous.

Basile [38]

The answer is homogeneous

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2 years ago

Two hydrogen atoms collide in a head on collision and end up with zero kinetic energy. Each then emits a photon of 121.6 nm (n=2

Zinaida [17]

Explanation:

Expression for the kinetic energy is as follows.

K.E = $\frac{1}{2}mv^{2}$

Now, total kinetic energy will be as follows.

K.E = $2 \times \frac{1}{2}mv^{2}$ = $m \times v^{2}$

Since, this energy converts into electromagnetic radiation of wavelength 121.6 nm.

Relation between energy and photon is as follows.

Energy of photon = $\frac{hc}{\lambda}$

= $\frac{6.626 \times 10^{-34} \times 3 \times 10^{8}}{121.6 \times 10^{-9}}$

= $1.63 \times 10^{-18} J$

$m \times v^{2} = 1.63 \times 10^{-18}$

v = $\sqrt{\frac{1.63 \times 10^{-18}}{1.67 \times 10^{-27}}$

= $3.12 \times 10^{4}$ m/s

Thus, we can conclude that atoms were moving at a speed of $3.12 \times 10^{4}$ m/s before the collision.

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3 years ago

Which energy source can we can find waste everywhere and shouldn’t run out?

olya-2409 [2.1K]

Answer:

wind

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2 years ago

Read 2 more answers

How many atoms are in a sample of 175 grams of sodium (Na)? The answer needs to be a x 10^b

ValentinkaMS [17]

Atomic mass Sodium ( Na ) = 22.98 u.m.a

22.98 g ----------------- 6.02x10²³ atoms
175 g ------------------- ?? atoms

175 x ( 6.02x10²³) / 22.98 =

4.58x10²⁴ atoms of Na

hope this helps!

4 0

2 years ago