Biology, 28.05.2020 22:59 hokamidat

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

Show answers

Another question on Biology

Biology, 22.06.2019 01:30

Based on the law of dominance, we would expect percent of the offspring from this cross to have large teeth.

Answers: 2

Answer

Biology, 22.06.2019 07:50

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Answers: 3

Answer

Biology, 22.06.2019 10:50

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.

Answers: 1

Answer

Biology, 22.06.2019 12:00

Which statement about relative potential energy of electrons is correct? a. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 2 s orbital of the second electron shell. b. an electron in the 2 p orbital of the second electron shell has more potential energy than an electron in the 3 p orbital of the third electron shell. c. an electron in the 3 p orbital of the third electron shell has more potential energy than an electron in the 2 p orbital of the second electron shell.

Answers: 2

Answer

You know the right answer?

R it answe know it dont If you dont

Fill in the blank: The number of molecules in a chem...

Questions