Answer:
1. Define the problem
2. Conduct a literature search
3. Propose a hypothesis
4. Devise an experiment to prove or disprove
5. State conclusions
Explanation: In order to begin an experiment, you must first define a problem or question that you will be answering. Then you must research the problem in order to form a hypothesis, or an educated guess. Then you should devise and execute an experiment to answer your question. The conclusions that you draw will either prove or disprove your hypothesis. Hope this helps!
The chemical formula for sulfuric acid is H2SO4. In one molecule of sulfuric acid, there are _____.
two atoms of helium
two atoms of oxygen
four atoms of oxygen
four atoms of sulfur oxide
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Answer:
four atoms of oxygen
Explanation:
two atoms of hydrogen
one sulphur atom
How is the sun related to nuclear, radiant, and heat energy?
Answer:The sun creates energy through nuclear fusion. Kinetic energy creates heat and light.
Explanation:
Organisms can either be made of one cell or made of more than one cell
Answer:
The statement is true.
Explanation:
Organisms can be unicellular (made up of one cell) or multicellular (consisting of more than one cell).
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What type of energy is associated with this movement of the molecules?
Answer:
electric
Explanation:
If there is not one scientific method, then what do all scientists have in common???
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Answer:
One thing that all scientists have in common is that they find problems in the world, and attempt to seek answers to those problems. Everything that scientists do begins with observations, leading to questions.
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While no single scientific method is uniformly followed by all scientists, there are certain common aspects and concepts that scientists share in their search of knowledge and understanding.
These are some examples:
Scientists rely on empirical evidence gathered via observation, experimentation, and measurement.
Systematic and Objective Investigation: Scientists explore and analyse events using systematic and objective approaches.
Scientific discoveries should be repeatable, which means that other researchers should be able to replicate the tests and achieve identical results.
Thus, although scientists' methodologies and approaches differ between fields, these basic principles drive their research and contribute to the collective growth of scientific knowledge.
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Elements in the same group have _____.
the same number of electron shells
the same number of protons
similar chemical properties
the same number of isotopes
Answer:
Element in the same group have similar chemical properties.
Why do scientists use models, and why do all models have limitations???
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Answer:
Scientists use models to represent data/evidence. However, all models have limitations. However, models are simplified versions of reality, and can't be totally accurate in representation.
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Answer:
Since models are simpler than real objects or systems, they have limitations. ... It may not predict the behavior of the real system very accurately. But the more computing power that goes into the model and the care with which the scientists construct the model can increase the chances that a model will be accurate.
Each element has a different:
number of protons and electrons
atomic mass and weight
Properties and characteristics
number of neutrons
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Answer:
(C. Properties and characteristics.
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Explanation:
What makes a good scientific question???
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Answer:
A good question is testable, detailed, measured, and controlled.
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Please help with questions 11-13! I’ll give brainliest
Quartz, or silicon dioxide (SiO2), is one of the most abundant minerals on Earth. The diagram shows the atomic arrangement of quartz.
Based on the diagram, which statement best describes the atomic arrangement of quartz?
Group of answer choices
An extended structure that is made of repeating patterns of atoms.
A repeating pattern of small molecules that can move freely past each other
Many different kinds of molecules tha combine to form an extended structure.
Many different kinds of atoms that can move freely past each other.
Based on the atomic arrangement of quartz, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
What is quartz?Quartz is a hard crystalline mineral found within the Earth's crust and which is composed mainly of the mineral silica. Silica is mostly silicon(iv) oxide.
Quartz is colourless and its crystalline structure is of a hexagonal prism. The atoms are arranged in a regular repeating grid to form the hexagonal crystal.
Therefore, it is can be concluded that quartz is an extended structure that is made of repeating patterns of atoms.
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What is the difference between data and evidence???
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Sodium chloride (NaCl) is made from ___ of sodium (Na) and ___ of chlorine (Cl).
Blanks: One Atom and Two Atom
Answer:
one atom, one atom.
Explanation:
Sodium chloride is made from one sodium atom and one chlorine atom.
Sodium has a charge of +1, Chlorine has a charge of -1. These cancel each other out leaving only one atom for both sodium and chlorine.
