I really need help, i've tried really hard to find the answers. You don't have to give me the answers maybe just help me out? Thank you to anyone who helps!
chemical property
mixture
heat capacity
homogeneous
viscosity
sublimitation
physical property
compound
chemical formula
substance
density
mass
tempurature
pressure
heterogenerous
14.
A property of matter describes its ability to change into different substances. (1 point)
Use the picture to answer question 15.
15.
The individual substances of the mixture shown above are easily distinguished and easily separated. This is an example of what kind of mixture? (1 point)
16.
The ratio of the mass of a substance to its volume is called ___. (1 point)
17.
A ___, such as H2SO4, is a symbol that shows the elements in a compound and the ratio of atoms. (1 point)
18.
When molecules of water vapor in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in ___. (1 point)
19.
The contents of a can of air freshener are gaseous when sprayed, but remain a liquid while in the can due to ___. (1 point)
20.
A ___ is two or more substances that are together in the same place but are not chemically combined. (1 point)
21.
When exposed to the same amount of heat for the same amount of time, a 3 g sample of copper will experience a greater temperature change than a 12 g sample of copper due to its smaller ___. (1 point)
22.
A property of matter that can be observed without changing the matter into a new substance is known as ______. (1 point)
23.
A substance made of two or more elements chemically combined in a set ratio, or proportion, is called a ___. (1 point)
ever think of trying
(a) your textbook
(b) a dictionary
(c) google?
There. No answers, but maybe some help.
What’s the answer
Entire test
1.C
2.B
3.D
4.C
5.D
6.C
7.B,D
8.A
9.B
10.A
11.D
12.C
13.C
14. Chemical
15. Homogeneous
16. Density
17. Chemical Formula
18. Temperature
19. Pressure
20. Mixture
21. Mass
22. Physical Property
23. Compound
Use this info to make an answer in your own words.
24. Magnet for iron, take out wood chips, dissolve salt in water, you are left with sand
25. They are different chemicals if they have different boiling points so it's chemical change.
15 is heterogeneous sorry
Of course! I'd be happy to help you out. Let's tackle each question one by one:
14. A property of matter that describes its ability to change into different substances is called a chemical property. Chemical properties can only be observed when the matter undergoes a chemical change, such as burning or rusting.
15. To answer this question, you'll need to refer to the picture provided. Look for any indications of whether the individual substances in the mixture can be easily distinguished and separated. Based on the given information and your observations, determine whether the mixture is homogeneous or heterogeneous. Homogeneous mixtures are uniform throughout and the substances are not easily distinguishable, while heterogeneous mixtures have distinct components that can be easily separated.
16. The ratio of the mass of a substance to its volume is called density. Density is a physical property that determines how compact or spread out a substance is.
17. The symbol that shows the elements in a compound and the ratio of atoms is called a chemical formula. It represents the types and number of atoms of each element in a compound.
18. When molecules of water vapor in the air come into contact with a cold can of soft drink, they lose energy, slow down, and form a liquid due to a decrease in temperature. The decrease in temperature causes the water vapor to condense into liquid form.
19. The contents of a can of air freshener are gaseous when sprayed, but remain a liquid while in the can due to pressure. The pressurized container keeps the contents in a liquid state until released, at which point the pressure is released, and the contents turn into a gas.
20. Two or more substances that are together in the same place but are not chemically combined are called a mixture. Mixtures can be homogeneous, where the components are uniformly mixed and not easily distinguishable, or heterogeneous, where the components are distinct and can be separated.
21. The reason a 3 g sample of copper will experience a greater temperature change than a 12 g sample of copper when exposed to the same amount of heat for the same amount of time is due to its smaller mass. Specifically, the smaller mass allows for a smaller amount of heat energy to be spread out, leading to a larger temperature change.
22. A property of matter that can be observed without changing the matter into a new substance is known as a physical property. Physical properties include characteristics such as color, shape, density, and boiling point.
23. A substance made of two or more elements chemically combined in a set ratio, or proportion, is called a compound. Compounds have unique chemical and physical properties that are different from their constituent elements.
Remember, these explanations should help guide you towards the answers. Take your time, refer back to your textbook or class notes if necessary, and make logical deductions based on the information provided in each question. Good luck!