A. Some ice cubes are floating in the tea
B. The sugar crystals are no longer visible in the tea
C. The mixture looks the same throughout
D. Some water droplets form on the outside of the glass
The subject is science
Answer:
The correct option is;
A. Some ice cubes are floating in the tea
Explanation:
A heterogenous mixture is one that is made up of more than one clearly identifiable phase of matter (such as solid and liquid, liquid and gas, gas and solid, or solid, liquid and gas combined) and therefore having non-uniform composition, which varies from one section to another within the mixture.
Ice cubes which are solids being observable on the surface of the mixture provides clue that the student has made an heterogenous mixture.
b. depression
c. higher energy levels
d. reduced quality of life
the answer is c i just took the test
b. more stable
c. less efficient
d. more efficient
What is the total number of moles of C that must completely react to produce 2.0 moles of C2H6?
(1) 1.0 mol (3) 3.0 mol
(2) 2.0 mol (4) 4.0 mol
Answer: The correct answer is option 4.
Explanation:
According to the reaction, 1 mol of is obtained from 2 moles of C gives
Then, 2 moles of will be obtained from:
moles of C =4 moles
Hence, the correct answer is option 4.
An atom of titanium with atomic number 22 and mass number 49 contains 22 protons, 27 neutrons, and 22 electrons.
An atom of titanium has an atomic number of 22 and a mass number of 49. The atomic number represents the number of protons in an atom, so there are 22 protons in this titanium atom. The mass number of an atom is the sum of its protons and neutrons.
Since the atomic mass is 49, and the atomic number is 22, we can subtract the atomic number from the atomic mass to find the number of neutrons. In this case, there are 27 neutrons in the titanium atom. If the titanium atom is neutral, it means it has an equal number of protons and electrons. Since there are 22 protons, there are also 22 electrons in the atom.
#SPJ2
Answer:
CH₃CH₂CH₂OH → CH₃CH=CH₂ + H₂O
Explanation:
La ecuación que representa la reacción del alcohol 1-butílico (también llamado como 1-butanol o n-butanol) con H₂SO₄ como catalizador a altas temperaturas es:
CH₃CH₂CH₂OH → CH₃CH=CH₂ + H₂O
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