CRCT- Science Review Question Preview (ID: 17961)
Matter And Its Properties.
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1. Which particle type can be identified as being from a specific element?
a) electron
b) atom
c) neutron
d) protron
Which of these phrase best describe atoms?
a) two or more combined elements
b) the smallest unit of an element
c) particles inside a nucleus
d) different forms of an element
Sodium chloride (NaCl) is formed in a chemical reaction between sodium (Na) and chlorine (Cl (2). What is sodium chloride?
a) element
b) mixture
c) compound
d) atom
The particles in a container are in constant motion. The particles in which of these substances have the lowest amount of kinetic energy?
a) the wax of a candle at room temperature
b) the water in a glass of ice water
c) the steam from a cup of coffee
d) the ice cube in a glass of tea
Appearance, texture, and density is classified as:
a) chemical properties
b) physical properties
c) magnetic properties
d) thermal properties
According to the Periodic Table of Elements, which set of elements have similar properties?
a) H, C, l
b) HE, H, Al
c) He, Ne, Ar
d) Na, Ca, Al
What is the only non-metal on the left side of the periodic table?
a) Carbon
b) nitrogen
c) hydrogen
d) radon
The elements in group 18 are commonly known as:
a) halogens
b) noble gases
c) non-metals
d) salts
The Periodic Table of Elements organizes element according to their properties, of Group 1 - 6, which set of elements is the most similar in chemical behavior?
a) H, Be, Sc
b) Fr, Ra, Rf
c) Ti, V, Cr
d) Be, Ca, Ra
. A student studies four chemical in the laboratory, which chemical cannot be further broken down into other chemicals using ordinary laboratory processes?
a) salt
b) water
c) iron
d) limestone
In Haber Process, hydrogen (H (2), and nitrogen N (2), react to produce ammonia NH (3). This reaction releases heat. How does the reaction influence the mass of the reacting chemicals.
a) mass stays the same because molecular mass remains the same
b) mass increases because a more complex compound is produced
c) mass decreases because some mass is converted to heat energy.
d) mass stays the same because no matter is created or destroyed.
Juan Carlos placed 35 grams of ice into a dry 200 gram container. The top was tightly attached. When the ice was completely melted, the student massed the container with the liquid water. What mass of liquid water should be in the container?
a) 200 grams
b) 35 grams
c) 165 grams
d) 235 grams
Which of these shows a physical change?
a) wood is burned in a fireplace
b) cake batter is baked in a oven
c) a blue liquid and a yellow liquid mix and make a green liquid
d) baking soda is mixed with vinegar to make carbon dioxide
Which calculation is used to determine acceleration?
a) divide change in velocity by change in time
b) multiply average velocity by change in time
c) divide average velocity by mass
d) multiply change in velocity by distance traveled
In which state are molecules of a substance arranged in the most orderly fashion?
a) gas
b) liquid
c) plasma
d) solid
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