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
Sergeu [11.5K]
3 years ago
5

Help pleaseeeeeeeeeeeeee!!?

Chemistry
2 answers:
melisa1 [442]3 years ago
4 0

Answer:

There are 146 neutrons in Uranium-238

There are 90 electrons in Thorium-234

vodka [1.7K]3 years ago
4 0
146 N in uranium and 90 E in Thorium
You might be interested in
Find the volume of 6.45 moles of gas present at a temperature of 27.0oC and a pressure of 675 torr.
maw [93]

<u>Answer:</u> The volume of the gas is 178.76 L

<u>Explanation:</u>

The ideal gas equation is given as:

.......(1)

where

P = pressure of the gas = 675 torr

V = volume of gas = ?

n = number of moles of gas = 6.45 moles

R = Gas constant = 62.36 L.torr/mol.K

T = temperature of the gas = 27^oC=[27+273]K=300K

Putting values in equation 1, we get:

675torr\times V=6.45mol\times 62.36L.torr/mol.K\times 300K\\\\V=\frac{6.45\times 62.36\times 300}{675}=178.76 L

Hence, the volume of the gas is 178.76 L

3 0
3 years ago
Can someone please name a project I can do for my science fair for 7th grade I need a easy one
avanturin [10]
I know one it is with matter

You can do a mixture by making a fruit salad
7 0
3 years ago
Which of these is a chemical property of iron?
denpristay [2]
Iron becomes rusted especially in damp air but never in a dry air,  this is one of the many unique characteristics of iron. Iron is also ductile and malleable. It is found in the seventh group of the periodic table. It has four different and unique crystalline forms and completely dissolves in dilute acids. The two chemical compounds that can be found or made from iron are the bivalent iron also known as ferrous and the trivalent iron or known as ferric compounds.
7 0
3 years ago
Read 2 more answers
A compound is 79.94g carbon, 26.82g hydrogen, and 93.24g nitrogen. What is the empirical formula?
Pani-rosa [81]

Answer:

i dont know

Explanation:

sorry

5 0
3 years ago
Have an infinite number of significant figures
vovikov84 [41]
The answer is: Non-zero
7 0
3 years ago
Other questions:
  • Which of the following surfaces creates the most friction?
    11·1 answer
  • In a rate law, the rate constant, k, depends on which condition
    12·1 answer
  • Write the empirical formula for C6H6
    14·2 answers
  • How do you balance the equation NO2 + H2 →-&gt; NH3 +H2O using the oxidation number method?
    5·2 answers
  • Which of the following statements is true?
    12·2 answers
  • Calculate the offspring genotypic ratio for hair color using the following information: Father is a hybrid and Mother is a homoz
    14·1 answer
  •  A substance has 55.80% carbon, 7.04% Hydrogen, and 37.16% Oxygen. What is it's empirical and molecular formula if it has a mola
    13·2 answers
  • Which causes genetic variations and can result in different alleles
    11·1 answer
  • A student wants to find the relationship between the diameter of several plastic disks and the circumference of each disk. Which
    11·1 answer
  • Ammonia reacts with fluorine gas according to the thermochemical equation given
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!