False, Molecules are made of atoms and atoms are made of quarks.
1. Make an observation
: My toaster doesn't toast my bread
2. Ask a question
: Why doesn't my toaster work?
3. Form a hypothesis
: My coffeemaker works when plugged into the outlet
4. Make a prediction
: If something is wrong with the outlet, then my coffeemaker also won't work when plugged into it
5. Conduct an experiment
: I plug my coffeemaker into the outlet
6. Analyze the results
: There is something wrong with the electrical outlet
Explanation:
The solution to the problem is as shown above.
- A scientific method follow a methodical way of critically carrying out an inquiry into an observation.
- Firstly, an observation is usually made with our senses. Here the researcher observes that the toaster does not toast his bread probably after a long wait.
- He then proceeds to ask why the toaster does not work.
- To investigate this, the forms a hypothesis. A hypothesis is a scientific guess. It is a tentative proposition about an investigation.
- The researcher then makes a prediction about the outlet that might be faulty.
- With this background, he goes on to carry out an experiment to substantiate his findings. This is seen when he plugs the coffeemaker into the outlet.
- From the analysis of result, he sees that that something is wrong with the outlet.
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Answer : Hypothesis.
Explanation : Hypothesis is defined as the supposition or proposed explanation which can be made on the basis of limited available evidence as a starting point for further investigation. Here, in this question the proposed explanation for the changing colors of the sky is an example of a hypothesis.
A hypothesis has to be supported with scientific experiments which are reproducible by several experiments and test results have to be valid to be called as a scientific theory.
Answer:
- 100g
- 1.000.000mg
- 10 kg
Explanation:
1.000.000mg = 1,000 g =1kg
100g =.01kg
10 kg
The compound name of Ba3N is Barium Nitrate.
<u>Explanation</u>:
- A compound name is a combination of two or more than two elements that are bonded together giving a compound form.
- Barium Nitrate is a combination of two elements barium and nitrate which tends to bond together forming a compound.
- Barium nitrate is the inorganic compound with the chemical formula Ba(NO₃)₂. It is colorless, toxic, and water-soluble.
- It is more dangerous when it is exposed to fire, there will be an explosion irritating to eye and skin. Toxic oxides of nitrogen produced in fires.
- It has a molecular weight of 261.34 g / mol and has a molecular formula of Ba(NO₃)₂.
