An element from group 2 will form ionic bonds with a nonmetal group 13-17, therefore the correct answer is option C.
When electrons are moved from the atoms of one element to the atoms of another, creating positive and negative ions, ionic bonds are created. Ionic bonds are only between metals and non-metals occur. There can not be the formation of the ionic bond between two metals.
These ionic bonds are also known as electrovalent bonds as they are formed because of the transfer of the electrons.
There must be one electropositive element that can release electrons which is metal as metals have extra electrons in their valence shell.
There must be one electronegative element involved during the formation of the ionic bond, which is a nonmetal as nonmetals have few electrons left to complete their outermost shell.
As given in the problem element of group 2 are metals and will form ionic bonds with the nonmetal elements of the group 13-17.
Thus, the correct answer is option C.
Learn more about the ionic bond from here
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Answer:
c
Explanation:
it is c because I just took that test on Usa Test Prep and got a 100%
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nuclear energy
B.
electrical energy
C.
chemical energy
D.
sound energy
The correct answer to the question is : C). Chemical energy.
EXPLANATION:
A gas stove provides energy when the gas present inside it, is burnt.
The gas contained inside it are natural gases which contain chemical energy. When gases come under fire or electric spark, the chemical energy is converted into light and heat energy.
No nuclear, electric or sound energy are consumed in providing power .
Hence, the correct statement is chemical energy.
Answer:
Before you make a hypothesis, you have to clearly identify the question you are interested in studying. A hypothesis is a statement, not a question. Your hypothesis is not the scientific question in your project. The hypothesis is an educated, testable prediction about what will happen
Explanation:
Before you make a hypothesis, you need to do preliminary research to understand the subject and define the problem. Collect and analyze relevant data and then based on your observations, you can create an educated guess or hypothesis to be tested.
Before you make a hypothesis, there are several important steps you should undertake. Firstly, you need to do some preliminary research. This research can involve reading books, scholarly articles, or trustworthy digital resources about the subject of interest. It is key to understand the subject well before developing a hypothesis. Secondly, you need to clearly define the problem or question you are interested in answering.
Next, make observations and gather data related to the problem. This is often called data collection and may involve conducting surveys, experiments, or fieldwork. After collecting and analyzing all the relevant data, you can formulate a hypothesis. A hypothesis is an educated guess about how things work or a tentative explanation that you will test in your experiment.
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2. _____ is the transfer of thermal energy due to collisions between particles of matter.
A. Conductors
B. Expansion
C. Heat
D. Insulators
E. Temperature
After the initial push, the rock will keep moving forever at constant velocity (constant speed in a straight line)
Explanation:
We can answer this question by using Newton's first law of motion:
"An object at rest (or in motion at constant velocity) will stay at rest (or will keep moving at constant velocity) unless acted upon unbalanced forces" (Law of inertia)
In this problem, we have a rock in a place very far from any force that can act on it. This means that there are no unbalanced force acting on it, so the rock will keep its state of motion forever.
In this situation, the rock is initially thrown by the astronaut. After the initial push, which accelerates the rock up to a certain velocity, there will be no more forces acting on the rock. This means that the rock will continue moving at a constant velocity forever, so at a constant speed in a straight line.
Learn more about Newton laws of motion:
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