R it answe know it dont If you dont
Fill in the blank: The number of molecules in a chem...
R it answe know it dont If you dont
Fill in the blank: The number of molecules in a chemical reaction are indicated by the
The on the left side of an equation must be balanced with the atoms on the right side of the equation.
Question 2 options:
total number of molecules
total number of atoms
total number of compounds
free electrons
What happens in a covalent bond between atoms?
Question 3 options:
each atom shares electrons so that they are both stable
electrons are lost by one atom and gained by the other
the smaller atom’s neutrons repel the electrons
the electrons flow in an electric current away from the bonded pair of atoms
(4) Fill in the blank: What is the correct name for the ionic compound Ca2P5?
What does a chemical change always result in?
Question 5 options:
precipitate
new reactant
increased activation energy
new substance
Metals tend to electrons and become .
Question 6 options:
lose, anions
lose, cations
gain, anions
gain, cations
How many valence electrons do most atoms need to have in their outer shell to be most stable?
Question 7 options:
8
1
4
6
Answers: 1
Biology, 21.06.2019 19:00
Apea plant that is heterozygous for the tall phenotype can produce short offspring when self pollinating. which of the following explains why this occurs? a. segregation of allels b. condominance of traits c. polygenic expression of traits d. independent assortment of alleles
Answers: 1
Biology, 22.06.2019 00:10
Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase
Answers: 1
Biology, 22.06.2019 04:00
Food contains a sugar called ( ), which is broken down in a process called cellular ( ). this process uses ( ) to break down food molecules and provide energy for cells. fill in the parentheses
Answers: 2
Biology, 22.06.2019 06:00
Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun
Answers: 1
History, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
English, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
English, 31.10.2020 03:40
English, 31.10.2020 03:40
English, 31.10.2020 03:40
English, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40
Mathematics, 31.10.2020 03:40