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Oliga [24]
4 years ago
14

Although there are different ways to approach a scientific investigation, all scientific investigations begin with some sort of

Chemistry
2 answers:
Sholpan [36]4 years ago
6 0

Answer:

observation

Explanation:

raketka [301]4 years ago
5 0

Answer: hypothesis or guess

(pls mark me brainliest)

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help

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Why are units of measurement useful?
natali 33 [55]

Answer:

B

Explanation:

If you are comparing an amount you are trying to find the quantity or the total of something or the size  therefore answer B is the right answer  

4 0
3 years ago
Identify which of the following oxidation-reduction reactions are balanced and which are unbalanced in both mass and charge. 1.2
Ivenika [448]

Answer:

1. Balanced

2. Unbalanced

3. Unbalanced

Explanation:

<em>Identify which of the following oxidation-reduction reactions are balanced and which are unbalanced in both mass and charge. </em>

<em> </em>

<em>1. Ag⁺(aq) + Li(s) → Ag(s) + Li⁺(aq) </em>

This reaction is balanced in both mass  and charge.

<em>2. Fe(s) + Na⁺(aq) → Fe²⁺(aq) + Na(s) </em>

This reaction is balanced in mass but unbalanced in charge since the charge to the left is +1 and the charge to the right is 2+.

<em>3. K(s) + H₂O(l) → KOH(aq) + H₂(g)</em>

This reaction is balanced in charge but unbalanced in mass since there are 2 atoms of H to the left and 3 atoms of H to the right.

3 0
3 years ago
What force causes the measurement of weight?
mamaluj [8]

Answer:

Gravity

Explanation:

Gravity is what causes you to weigh more or less.

What is gravity? Gravity is the force that pulls things together. Larger things with larger masses have more gravity. When you are on Earth, you would weigh more than on the moon, about 6 times more, in fact, because the gravity on Earth is 6 times stronger.

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2 years ago
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