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
dem82 [27]
3 years ago
12

7. Define electronegativity

Chemistry
1 answer:
neonofarm [45]3 years ago
5 0
Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.
You might be interested in
Hemoglobin is the protein that transports oxygen in mammals. Different species of mammals have slightly different forms of hemog
Anna35 [415]

Answer;

= 64561.95 g/mole

Explanation;

mass of Fe in 100g = .346g

= .346 / 55.8452 moles

= 0.0061957 moles  

These represent 4 moles of Fe in the molecule so moles of hemaglobin

=  0.0061957/4  

= 0.0015489 moles  

these are in 100 g so mass of 1 mole = 100 / 0.0015489

= 64561.95 g / mole

molar mass of hemoglobin = 64561.95 g/mole

6 0
3 years ago
Some oxides are given below. (i)Na2O (ii)NO2 (iii) CO2 (iv) MgO a) Which are the basic oxides among these? b) What is the name o
umka2103 [35]
<h3>Further explanation</h3>

Basic oxides ⇒ metal(usually alkali/alkaline earth) +O₂

L + O₂ ⇒ L₂O

L + O₂ ⇒ LO

Dissolve in water becomes = basic solution

L₂O+H₂O⇒ 2LOH

LO + H₂O⇒ L(OH)₂

So the basic oxides : Na₂O and MgO

Na₂O + H₂O⇒NaOH

MgO +H₂O⇒Mg(OH)₂

The aqueous solution of CO₂(dissolve in water)

CO₂ + +H₂O⇒ H₂CO₃(carbonic acid)

5 0
3 years ago
You are given a cup of milk and a spoon of sugar. What type of mixture will be formed? justify your answer.​
IrinaK [193]
Milk that’s really sweet? or clumpy milk?
6 0
3 years ago
Question 11 of 25
masha68 [24]

Answer:

a.The waves are absorbed or reflected to capture images

Explanation:

How Things Work: TSA scanners use electromagnetic waves for detection. ... These waves are bounced off the body of the person being scanned to create a three-dimensional image on the computer. The backscatter units instead bounce low-level electromagnetic X-rays off the body to create an image on the computer

7 0
2 years ago
Read 2 more answers
How many Br atoms are in 1.98 g of Br?
Mkey [24]

Answer:

1.5 x 10²²atoms

Explanation:

Given parameters:

Mass of Br = 1.98g

Unknown:

Number of atoms

Solution:

A mole of a substance is the amount of substance contained in the avogadro's number of particles.

To solve this problem, we must first find the number of moles present in the given mass of the Br atom:

       Number of moles = \frac{mass}{molar mass} =  \frac{1.98}{80}  = 0.025mole.

Now we know that:

       1 mole = 6.02 x 10²³

      0.025 mole = 0.025 x 6.02 x 10²³ = 1.5 x 10²²atoms

7 0
3 years ago
Other questions:
  • Calculate the mass of a body<br>Whose volume is<br>Is 2cm3 and<br> density is 520cm3​
    15·1 answer
  • When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are produced. Why is ghe burning o
    13·1 answer
  • What technology do scientists use to map the human genome?
    9·2 answers
  • g A molecule with 6 areas of electrons (6 electrons domains) consisting of 4 bonding domains and 2 non-bonding domains will have
    15·1 answer
  • What might be a long term benefit for the nation from space exploration. A. Taxes will be slower. B. More people will be interes
    5·1 answer
  • What is the mass in grams of 366mL of ethylene glycol
    15·1 answer
  • Why did acid make our teeth rot?
    5·2 answers
  • Explain<br> Question<br> 1. An atom makes<br> up a compound<br> True/False
    8·2 answers
  • 2.When copper (II) nitrate reacts with sodium hydroxide, copper (11) hydroxide is produced.
    5·1 answer
  • A student proposes creating a buffer by dissolving 0.010mol of NaClO4(s) in 100.mL of 0.100MHClO4. Explain why the resulting sol
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!