Answer:
1. A substance that can be separated into two or more substances only by a chemical change is a(n) _____.
solution
element
mixture
compound
2.
Which of the following materials is a substance?
air
gasoline
stainless steel
silver
3.
The first figure in a properly written chemical symbol always is _____.
boldfaced
capitalized
italicized
underlined
4.
Which of the following represents a compound?
H
H-3
H2O
O-16
5. What do chemical symbols and formulas represent, respectively?
elements and compounds
atoms and mixtures
compounds and mixtures
elements and ions
Explanation:
2.Improving my balance and coordination can affect my performance in sports or recreational activities by planing better in activities also <span>improving my speed. My activities all need skills that I am really good at.
3.</span>The activity that was most difficult for me to perform was the Stork Stance test because I am not good with balancing and that is something <span>I need to improve.
4.</span>An activity that could help improve my striking and my reaction time.
5.One sport that I have never done but that I would like to try one day is <span>baseball.
</span>One element of skill-related fitness that is important to being successful in the activity is speed and reaction time skills.6. R<span>unning, jogging, sprinting, and jump roping.</span>
Answer:
The risks and expense of manned deep water exploration must be balanced with the knowledge that will be gained.
Explanation:
The thermal energy of an object is the energy contained in the motion and vibration of its molecules. Thermal energy is measured through temperature. The energy contained in the small motions of the object's molecules can be broken up into a combination of microscopic kinetic energy and potential energy.
Answer:
When equal and opposite forces meet each other, it results in motion and they would repel away from each other, causing the asteroid to be sent away from the earth.
Explanation:
Newton's Third Law states that every action has an equal and opposite reaction.
