CHEMISTRY HIGH SCHOOL

The unit cm3 is used to express .?

Answers

Answer 1
Answer: The unit cm3 is used to express a cube using cm
Answer 2
Answer: volume obviously. volume is cm cubed

Related Questions

When the solids ba(oh)2 and nh4scn are mixed, a solution is produced and the temperature drops. ba(oh)2 (s) 2nh4scn(s) → ba(scn)2 (aq) 2nh3 (g) 2h2o(l) which statement about the energetics of this reaction is correct? a. the reaction is endothermic and h is negative. b. the reaction is endothermic and h is positive. c. the reaction is exothermic and h is negative. d. the reaction is exothermic and h is positive.
Which factors affect a river's load?a.river’s slopec.streambed shapeb.volume of flowd.all of the above
What happens in a chain reaction
You take an ice cube (mass = 18g) from the freezer (T=-10°C) and place it on the table. Later that day, you notice a puddle of water on the table that has reached ambient room temperature (20°C). How much heat must have been absorbed to make this happen? A) 1867.0 J B) 2260.4 J C) 7897.0 J D) 42657.0 J
Would the following errors increase, decrease, or have no effect on the calculated moles of gas collected in the experiment? Explain your answers in complete sentences.a) The measured mass of the magnesium was smaller than the true mass. b) The actual temperature of the hydrogen gas is less than room temperature.

Solids and liquids have both mass and volume, but a gas has only mass.
a. True
b. False

Answers

True. A gas does not have a definite volume. Therefore, making this statement correct. 

Answer:

True. A gas does not have a definite volume. Therefore, making this statement correct.

Explanation:

true

determine the ionic characteristics of this element. element number of electrons in outer energy level electrons can receive valence (incl. or -) oxygen

Answers

Answer: The ionic characteristic of oxygen is that it tends to gain 2 electrons and form anions with a charge of -2 in order to achieve a stable electron configuration.

Explanation:

Which of the following is malleable?
A. glass
B. pottery
C. ice
D. gold

Answers

The answer is D. Gold. Malleability, the ability for a material to be hammered or shaped into thin sheets, is a common property of metals. Among the choices, gold is the only metal. Also, gold is considered to be the most malleable metal.

Final answer:

Gold is malleable while glass, pottery, and ice are not.

Explanation:

Malleability is the ability of a material to be hammered or rolled into thin sheets without breaking. Gold is highly malleable and can be shaped into various forms, such as jewelry and gold leaf. Glass, pottery, and ice, on the other hand, are not malleable because they will break or shatter when hammered or rolled into thin sheets.

Gold is malleable because its metallic bonds allow its atoms to slide past one another without breaking. Glass, pottery, and ice lack these bonds and have a more rigid structure, making them non-malleable. Instead, glass and pottery are brittle, while ice can fracture under stress due to its molecular structure.

Learn more about Malleability of Materials here:

brainly.com/question/35061830

#SPJ6

Plants and algae that convert sunlight to food energy are called producers

primary consumers

tertiary consumers

decomposers

Answers

The correct answer is the first choice given. Plants and algaes are producers. They are called as such since they produce their own food by using the energy from the sun, CO2 and water to form glucose as their food.

2H2 + O2 ---> 2H2OHow many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

A.) 6.8 mol
B.) 13.7 mol
C.) 54.8 mol
D.) 109.6 mol

Answers

2 H2 + O2 ----------- 2 H2O

2 mol H2 ----------- 1 mol O2
27.4 mol H2- ------ x mol O2

2x  = 27.4

x = 27.4 / 2

x = 13.7 moles O2

answer b

hope this helps!.

Answer:

B.) 13.7 mol

Explanation:

Edge 2020

(A) free energy(B) lattice energy
(C) kinetic energy
(D) activation energy
(E) ionization energy
the minimum energy required for a nonspontaneous reaction

Answers

The answer is (D) activation energy
Other Questions
What is the symbol for magnesium
Which statements about hydrogen bonding in water are true?a. The hydrogen atoms of a water molecule have a partial positive charge. b. The oxygen atom of a water molecule is more electronegative than a hydrogen atom. c. The hydrogen atoms of a water molecule have a partial negative charge. d. The hydrogen atom of one water molecule is attracted to the oxygen atom of a different water molecule. e. The hydrogen atom of a water molecule is attracted to the oxygen atom of the same water molecule. f. The oxygen atom of a water molecule has a partial positive charge. g The oxygen atom of a water molecule has a partial negative charge.
An atom has 5 protons and 7 neutrons. What is its mass number?
The graph above compares three states of a substance.Which of the following choices would NOT be an appropriate label for the y-axis?A. motion of particles.B. density of particles.C. randomness of particles.D. kinetic energy of particles.