3 years ago

Isotopes exist because atoms of the same element can have different numbers of

Chemistry

1 answer:

Rudiy273 years ago

7 0

Isotopes exist due to atoms of the same element having different numbers of neutrons

You might be interested in

If the starting volume of a hot air balloon is 55,500 m3and the initial temperature is 21 °C, what is the temperature inside the

Dmitry_Shevchenko [17]

Answer:

T₂ = 392 K

Explanation:

Given that,

Initial volume of the hot air balloon, V₁ = 55500 m³

Initial temperature, T₁ = 21°C = 294 K

Final volume, V₂ = 74000 m³

We need to find the final temperature inside the balloon. The relation between the temperature and volume is given by charles law i.e.

$\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}$

Where

T₂ is the final temperature

So,

$\dfrac{V_1}{T_1}=\dfrac{V_2}{T_2}\\\\T_2=\dfrac{T_1V_2}{V_1}\\\\T_2=\dfrac{294\times 74000 }{55500 }\\\\T_2=392\ K$

So, the new temperature is 392 K.

8 0

2 years ago

How many moles are in sample containing 2.71 x 10^24 atoms of iron?

Deffense [45]

Answer:

4.5 moles

Explanation:

One mole is equal to 6.022 x 10^23 atoms

2.71 x 10^24 atoms * 1 mol/ 6.022 x 10^23 atoms = 4.5 moles

5 0

2 years ago

__________ are composed of two or more covalently bonded atoms.<br> a). elements<br> b)molecules

klemol [59]

Molecules is the answer i believe

8 0

2 years ago

WILL GIVE POINTS/MARK BRAINLIST! Question 6: Types of Molecular Shapes (3 points) Identify the following molecular shapes. (0.5

Vanyuwa [196]

Answer:

A. tetrahedral

B. angular or bent

C. angular

D. trigonal planar

E. linear

F. linear

Explanation:

8 0

2 years ago

Consider conjugation. A long molecule contains a conjugated network of double bonds. Two of these double bonds begin at carbon 2

kaheart [24]

Answer: 4 and 6

Explanation: the double bonds are alternating in the chain

C—C=C—C=C—C=C—C=

1 2 3 4 5 6 7 8

3 0

2 years ago