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
Ksenya-84 [330]
3 years ago
7

Guys- my science teacher doesn't teach, he just says go on schoology ​

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
5 0
The relative mass of each element can be found from the periodic table (the larger number). For instance, P2O5, P = 31.0 O = 16.0, thus the formula mass (Mr) is 2(31) + 5(16) = 142 amu (atomic mass unit). I used a not really specific periodic table. Maybe your teacher is referring to open Schoology (a website where teacher can post files or announcements to students in his or her class). Sorry if i got something mistaken.
You might be interested in
How many calories is 52 J of energy?
just olya [345]

Answer:

1J = 0.238846cal

52J = 12.42cal

5 0
3 years ago
The freezing point of a solution the freezing point of the pure solvent
babymother [125]

Answer:

This means that a solution must be cooled to a lower temperature than the pure solvent in order for freezing to occur.

Explanation:

5 0
3 years ago
Read 2 more answers
Si una masa dada de hidrógeno ocupa 40 litros a 700 grados torr. ¿Qué volumen ocupará a 1 atmósfera de presión? (dar la presión
Svetach [21]

Answer:

V_2=36.84L

Explanation:

Hola,

En este caso, podemos usar la ley de Boyle, la cual nos permite analizar el comportamiento volumen-presión en un gas ideal de manera inversamente propocional:

P_1V_1=P_2V_2

Así, dado el volumen y la presión inicial, la cual se convierte a atmósferas (760 torr = 1atm), calculamos el volumen final a 1 atm como se muestra a continuación:

V_2=\frac{P_1V_1}{P_2}=\frac{700torr*\frac{1atm}{760torr}*40l }{1atm}\\  \\V_2=36.84L

Saludos!

7 0
3 years ago
Read 2 more answers
How does the amount of carbon dioxide affect the rate of photosynthesis?
swat32

Answer:

An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.

Explanation:

4 0
2 years ago
Read 2 more answers
Which statement best describes alpha decay?(1 point)
Veseljchak [2.6K]

Answer:

After the ejection of an alpha particle, the remaining nucleus has a mass number that is four less and an atomic number that is two less, so alpha decay is a type of nuclear fission.

6 0
3 years ago
Other questions:
  • Can anyone help me with the calculations for the Frequency, Wavelength, Energy Chart?
    5·1 answer
  • Early scientists think that plate motion was driven by
    6·1 answer
  • What geologic action may produce a chain of volcanic islands
    5·2 answers
  • Please help....
    11·1 answer
  • Help on math question please (will mark as brainliest)
    11·1 answer
  • Why do we use ammonium formate as a hydrogen surrogate instead of using hydrogen gas in this experiment?
    6·1 answer
  • PLEASEE HELPP MEEE WITH NUMBER 5!!!!!!<br> please explain why!!!!
    8·1 answer
  • The solid dissolves quickly is a chemical or physical reaction
    7·1 answer
  • Why wasn't the water pasteurized
    13·1 answer
  • Lodestone is magnetic. How might you identify weather a mineral sample might be lodestone
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!