1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Masteriza [31]
3 years ago
8

1.) How many periods are on the periodic table? Are periods the columns or the rows on the periodic table?

Chemistry
2 answers:
RideAnS [48]3 years ago
8 0
The periods are the rows, and there are 8 of them (I think)
mariarad [96]3 years ago
4 0

There are 8 periods. The periods are the rows.

You might be interested in
Each incomplete reaction is a neutralization reaction. Match each equation with the salt formed.
ddd [48]
Based on the incomplete neutralization reaction above, the corresponding salts that each reaction would form are as follows:
1. H2SO4 + 2NH4OH----(NH4)2SO4 with water as a byproduct
2. 2NaOH + H2CO3 ----Na2CO3 with water as a byproduct
3. HNO3 + KOH ----KNO3 with water as a byproduct
6 0
3 years ago
Read 2 more answers
Calculate the volume of dry co2 produced at body temperature (37 ∘c) and 0.970 atm when 25.5 g of glucose is consumed in this re
katrin2010 [14]

I believe the balanced chemical equation is:

C6H12O6 (aq) + 6O2(g) ------> 6CO2(g) + 6H2O(l) 

 

First calculate the moles of CO2 produced:

moles CO2 = 25.5 g C6H12O6 * (1 mol C6H12O6 / 180.15 g) * (6 mol CO2 / 1 mol C6H12O6)

moles CO2 = 0.8493 mol

 

Using PV = nRT from the ideal gas law:

<span>V = nRT  / P</span>

V = 0.8493 mol * 0.08205746 L atm / mol K * (37 + 273.15 K) / 0.970 atm

<span>V = 22.28 L</span>

6 0
3 years ago
Which of these is the ionic compound?
ale4655 [162]

Answer:

RbF

mgo

nh4cl

because electrons are lost by and element forming a cation and gained by the other element forming an anion and held together by electrostatic forces

5 0
3 years ago
Which equation represents the combined gas law?
stealth61 [152]

Answer:

P1V1/T1= P2V2/T2

Explanation:

Combined gas law involves Boyle's law and Charles law altogether with the formula of Boyle's law as P1V1=P2V2

formula for charles law as V1/T1=V2/T2

so when combined form P1V1/T1=P2V2/T2

4 0
3 years ago
What are the rows of the periodic table of the elements also called?
lesya [120]

The rows are called Periods.

4 0
3 years ago
Read 2 more answers
Other questions:
  • The image below shows the surface of the Moon.
    12·2 answers
  • What is 14 min before 7:00 in the morning?
    12·1 answer
  • Your neighbor Mr. Turner doesn't think that alternative energy resources like water, wind, or solar are important. "Why not just
    6·2 answers
  • Among the intermolecular forces, which forces are typically the weakest?
    8·2 answers
  • What is the difference between a strong electrolyte and a weak electrolyte
    12·1 answer
  • Plssss help me I only have 10 mins.
    15·2 answers
  • A 40.04 g sample of a protein contains 17.16 g of carbon, 3.17 g of hydrogen, 13.71 g of oxygen, and the rest being nitrogen. Th
    8·1 answer
  • Name the process which takes place when
    10·2 answers
  • How are cellular respiration and photosynthesis related?
    11·1 answer
  • Which of the following would result in the magnesium ribbon 'dissappearing' in less than 45 seconds?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!