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hammer [34]
3 years ago
14

He diagram shows a device that uses radio waves.

Chemistry
2 answers:
babymother [125]3 years ago
7 0

Answer:

Your answer is B. Capture, amplify and demodulate waves.

Explanation:

matrenka [14]3 years ago
3 0

Answer:

b

Explanation:

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Why does mass of popcorn stay the same after popping it
Varvara68 [4.7K]

Answer:

Explanation:

it stays the same because the seeds or whatever in the bag was still the pop corn just not fully devloped

3 0
3 years ago
A student walks 2 km in 30 min what is the students average In km/h
horrorfan [7]

I think the answer the students average is 15 km?


8 0
3 years ago
Can you Please answer this question?
olga2289 [7]

Answer:

first option is not true

Explanation:

1 mole = 6.02 × 10²³ particles

C3H8 has 1 mole, so has 6.02 × 10²³ particles

5O2 has 5 moles so 5 × 6.02 × 10²³ = 3.01 × 10²⁴ particles

3CO2 has 3 moles so 3 × 6.02 × 10²³ = 1.806 × 10²⁴ particles

4H2O has 4 moles so 4 × 6.02 × 10²³ = 2.408 × 10²⁴ particles

8 0
2 years ago
9. Carbon-14 has a half-life of 5,730 years. How many years have passed after 3<br> half-lives?
ella [17]

Answer:

120 gram sample of a radioactive element, how many grams of that element will be left after 3 half-lives have passed? If you have a 300

Explanation:

Hope this helps!

7 0
3 years ago
Analysis
Karolina [17]

The properties of substances can be used to put the into groups.

<h3>Grouping of substances</h3>

In chemistry, it is often necessary to put substances into groups based  on similarity in their properties. This is what led to the idea of a periodic table of elements.

Similarly, when we have unknown substances, we can group them according to the similarities in their properties.

Learn more about properties of substances: brainly.com/question/19886211

6 0
2 years ago
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