Prokaryotic cells and Eukaryotic cells both contain all 4 biomolecules. True or False

Which of the following statements provides the BEST explanation for the many chemical similarities between two elements in a Mai

rjkz [21]

Answer:

(b) Both have the same number of valence electrons.

Step-by-step explanation:

We find the most striking chemical similarities between two Main Group elements when they are in the same Group of the Periodic Table.

Elements in the same Group have the same number of valence electrons.

(a) is wrong, because elements in the same group have different masses.

(c) is wrong, because atoms with the same number of protons belong to the same element.

(d) is wrong, because elements in the same Group must be in . different Periods.

7 0

3 years ago

__________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body. A.

Nadusha1986 [10]

_________ is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body
the answer to this question, is B personal protective equipment
hope this helps :D

3 0

3 years ago

Read 2 more answers

The molarity of concentrated acetic acid is 17.45 M. When acetic acid is diluted in water it is commonly called vinegar with a m

Sladkaya [172]

M1 = 17.45 M

M2 = 0.83 M

V2 = 250 ml

M1. V1= M2. V2

V1 = (M2. V2)/M1 = (0.83× 250)/ 17.45= 11.89 ml

7 0

3 years ago

What is the frequency of electromagnetic radiation having a wavelength of 3.27 ✕ 10-8 m? s-1 What type of electromagnetic radiat

iogann1982 [59]

Hello There!

The frequency is 91.74 MHz.
It is UltraViolet Radiation.

Hope This Helps You!
Good Luck :)

4 0

4 years ago

Balancing Chemical Equations Worksheet

Goshia [24]

The balanced chemical equation of the reactions given is as follows:

2LiHCO3 -----> Li2CO3 + H2O + CO2
2 N2 + 5 O2 -----> 2 N2O5
MgBr2 + KOH -----> KBr + Mg(OH)2
Mn + 2 CuCl -----> 2 Cu + MnCl2
8 Zn + S8 -----> 8 ZnS
2 NaOH + H2SO4 -----> 2 H2O + Na2SO4
2 K + 2 H2O -----> 2 KOH + H2
C5H12 + 8 O2 -----> 6H2O + 5 CO2
2 KOH + H2CO3 -----> 2 H2O + K2CO3
C4H802 + 6 O2 -----> 4 H20 + 4 CO2
16 Al + 3 S8 ---> 8 Al2S3

<h3>How to balance chemical equations</h3>

Balancing of chemical equations is the process of adding numerical coefficients in front of moles of reactants and products to ensure that the moles of atoms of elements of the reactants is equal to the moles of atoms of products formed.

The balanced chemical equation of the reactions given is as follows:

2LiHCO3 -----> Li2CO3 + H2O + CO2
2 N2 + 5 O2 -----> 2 N2O5
MgBr2 + KOH -----> KBr + Mg(OH)2
Mn + 2 CuCl -----> 2 Cu + MnCl2
8 Zn + S8 -----> 8 ZnS
2 NaOH + H2SO4 -----> 2 H2O + Na2SO4
2 K + 2 H2O -----> 2 KOH + H2
C5H12 + 8 O2 -----> 6H2O + 5 CO2
2 KOH + H2CO3 -----> 2 H2O + K2CO3
C4H802 + 6 O2 -----> 4 H20 + 4 CO2
16 Al + 3 S8 ---> 8 Al2S3

Learn more about balancing of chemical equations at: brainly.com/question/15428811

5 0

3 years ago