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
-BARSIC- [3]
2 years ago
8

How many atoms are equal to 1.5 moles of hellium

Chemistry
2 answers:
ANTONII [103]2 years ago
6 0

Answer:

There are 1.8×1024 atoms in 1.5 mol HCl

Explanation:

aniked [119]2 years ago
5 0
It’s 1.8x1024 atoms in 1.5.
You might be interested in
How many liters are in 5.42 mols of O2 gas?<br><br> (2 decimal places)
Debora [2.8K]

Explanation:

1 mol = 22.4 l

5.42 mol = 22.4 × 5.42 = 121.408

in two decimal place it is 121.41

7 0
3 years ago
A graph with horizontal axis time (seconds) and vertical axis position (meters). An orange line runs straight upward from 0 seco
OLga [1]

Answer:

Let's start by using the definition of acceleration. Acceleration is defined as the change in velocity over the change in time. In equation, that would be Δvelocity/Δtime. Based on the axes of the given graph, it shows the trend of position over time. So, the slope of the line and the curve shows the change of position over change of time, Δdistance/Δtime. In physics, this is the definition of speed or velocity. So, Maia is incorrect. Both curves show the speed or velocity of the object, and not acceleration.  If the graph used a y-axis of velocity instead of position, then only at that instance, would be Maia be correct.

The difference between the two is, the straight line shows constant velocity while the curve line shows changing velocity.

Explanation:

6 0
2 years ago
Read 2 more answers
Which statement best describes the structure of covalent network solids? A. They are giant structures held together by weak forc
konstantin123 [22]

Answer: Option (B) is the correct answer.

Explanation:

A covalent compound is a compound formed by sharing of electrons. And, in a covalent network solid atoms are bonded by covalent bonds in a continuous network that is extending throughout the material or solid.

This continuous arrangement of atoms are like a lattice.

For example, diamond is a covalent network solid in which carbon atoms are arranged in a continuous lattice like structure.

Hence, we can conclude that the statement all the atoms are covalently bonded to other atoms to form a lattice-like structure, best describes the structure of covalent network solids.

6 0
2 years ago
What is the density of a book whose mass is 1,800 g and whose volume is 300 cm3?
IRISSAK [1]
I think 0.54 kilogram
7 0
3 years ago
Read 2 more answers
Which of the following atoms contains the same number of neutrons as an atom of Calcium-40? (2 points) Select one: a. Potassium-
SVEN [57.7K]
First, let's find the number of neutrons in Calcium-40. to find the number of neutrons, you need to take the atomic mass minus atomic number

neutrons in Calcium---> 40 - 20 (atomic number) = 20 neutrons

potassium-40---> 40- 19= 21
scandium-44----> 44- 21= 23
argon-38---------> 38- 18= 20
chlorine-36------> 36- 17= 19

the answer is argon-38
5 0
3 years ago
Read 2 more answers
Other questions:
  • Sugar has a lower melting point than salt because sugar is made of _________.
    15·1 answer
  • What net ionic equation describes the reaction when these solutions are mixed?
    15·2 answers
  • Which statement is true about the compound ammonium sulfate [(NH4)2SO4] ?
    5·2 answers
  • Need helpppppp<br>Copper sulphate is a crystalline substance. why???​
    11·1 answer
  • How many electrons does an aluminum ion have?<br> a. 10<br> b. 13<br> c. 14<br> d. 16
    12·2 answers
  • Find the mass in grams of 4.52
    9·1 answer
  • Which substance is most likely metallic
    10·2 answers
  • Less energy was entering Earth's
    7·1 answer
  • Predict what would happen if plants disappear?
    9·1 answer
  • Please help, i will mark you as brainliest​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!