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Setler [38]
3 years ago
7

Which three elements seem to make up so much of the world around us?​

Chemistry
1 answer:
erma4kov [3.2K]3 years ago
7 0

Answer:

aw awe fr

Explanation:

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Please help fast!! I need someone to see if my answers are correct! If any are wrong please let me know what the correct answers
marta [7]

Yeah all of them are right :)

4 0
3 years ago
What are the purposes of theories in science?
Leto [7]

Answer:

Scientific theories are testable and make falsifiable predictions. They describe the causes of a particular natural phenomenon and are used to explain and predict aspects of the physical universe or specific areas of inquiry (for example, electricity, chemistry, and astronomy).

A good theory in the theoretical sense is (1) consistent with empirical observations; is (2) precise, (3) parsimonious, (4) explanatorily broad, and (5) falsifiable; and (6) promotes scientific progress (among others; Table 1.1).

5 0
3 years ago
What is the pH of a 6.7 x 10^−5 M H+ solution?
lyudmila [28]

Answer:

pH = 4.17

Explanation:

According to the molar concentration you stated, pH of the solution is: 4.17

Remember that pH = - log [H⁺]

and [H⁺] = 10^-pH

When:

pH > 7 →  Basic solution

pH = 7 → Neutral solution

pH < 7 → Acid solution

3 0
3 years ago
Read 2 more answers
Sam read that all subsystems interact with each other. Which example shows how changes in the cryosphere can affect the geospher
Dmitry_Shevchenko [17]

Answer:

Land that gains weight can rise slowly.

Explanation:

:D

7 0
3 years ago
What type of bonds exists between neighboring water molecules?
Sindrei [870]

Answer:

covalent bonds

Explanation:

8 0
2 years ago
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