Chemistry, 18.09.2021 06:50 Loveekatiana

2.Which of the following is NOT an example of compound? a. Ammonia
b. Helium gas
c. Hydrogen peroxide
d. Table sugar
3.Which of the following statements in TRUE about alements and compounds?
a. Are homologous in nature
b. Are simplest from matter
c. Are commonly naturally occurring materials
d. Can be broken down into simpler substances
4.Which of the following substance is an element?
a. carbon dioxide
b. iron
c. salt
d. sugar
5.Which of the following describes an element?
a. the simplest substance
b. It can be broken down into other types of substance
c. it can be separated through a chemical process
d. It is composed of two or more types
6.Which of the following statements correctly describes a compound?
a. can be broken down into a simpler type of matter by chemical means.
b. has a unique property that are different from the properties of it's individual elements
c. composed of atoms of two or more elements that bond together.
d. composed of two atoms that bond together
7.which of the following will be teh result of compound if tydrogen gas and oxygen gas combine?
a. alcohol
b. salt
c. sugar
d. water
8.salt in made up of what elements?
a. sodium of Chloride
b. sodium of chlorine
c. sodium and copper
d. sodium and oxide
9. which of the following is correctly matched?
a. Gold: Element: Silver: Compound
b. Oxygen: Element:Water: Compound
c. Sugar: Element:Salt : Compound
d. Water: Element: Hydrogen: Compound
10.which of the following is NOT an element?
a. na
b. Fe
c. pz
d. he
For items 11-15 whether it is an example of an element or a compound. Write the word ELEMENT if the sample shows characteristics of an element and COMPOUND if it shows characteristics of compound.
11.Aluminum
12. Mercury
13. Forrous Sulfate
14.Sucrose
15.Carbon

Answers: 2

Show answers

Another question on Chemistry

Chemistry, 21.06.2019 21:00

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.

Answers: 2

Answer

Chemistry, 21.06.2019 22:30

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Answers: 1

Answer

Chemistry, 22.06.2019 06:30

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

Answers: 1

Answer

Chemistry, 22.06.2019 09:00

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

Answers: 2

Answer

You know the right answer?

2.Which of the following is NOT an example of compound? a. Ammonia
b. Helium gas
c. Hydr...

Questions