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maw [93]
3 years ago
5

PLEASE HELP WILL MARK BRAINLIEST

Chemistry
2 answers:
Lelechka [254]3 years ago
7 0

Answer:

The answer is

Explanation:

Definitions

Observation: is when something catches our attention

Prediction: is a statement about a future event, based upon experience and knowledge

Inference: is a conclusion based on evidence and reasoning.

Hypothesis: is a proposed explanation for a fenomenon

Case I:

It isn't an observation

It isn't a prediction because it happened not will happen

I think is an inference

It isn't a hypothesis, a hypothesis has an specific structure If ... then ...

Case II

I think is a prediction, something that will happen

It isn't an observation he did more than that

It isn't an  inference

Hypothesis has an structure.

MAXImum [283]3 years ago
4 0

Answer:

1 is b and 2 is d

Explanation:

because you do not know that the cat had done that you was just thinking it was the cat

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Answer:

have the same number of atoms of each element in the reactants and in the products

Explanation:

<em>The basic principle in balancing a chemical equation would simply be to have the same number of atoms of each element in the reactants and in the products.</em>

<u>A balanced chemical equation is one that has the same number of atoms of each element on the reactant and the product's side of the equation.</u> For example, consider the equation below:

                     H_2 + O_2 --> H_2O

On the reactant's side, there are 2 atoms of H and O while there are 2 atoms of H and 1 atom of O on the product's side. This is an imbalanced equation. In order for it to be balanced, the number of atoms of H and O on the reactant side must be equal to the number of H and O on the product side as below.

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Answer:

HOPE IT HELPED U ....

Explanation:

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In the case above, Molecules collide with the glass, and the glass molecules then transmit that energy to the outside which is an exothermic reaction.

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