Answer:
covalent bonds
Explanation:
ionic transfer of e^- ions formed (charges)
ionic=non-metal+ metal
ex: F+Ca
covalent sharing e^- no true charges
covalent= non-metal+ non-metal
ex: F+P
( my notes)
Answer: Mechanical digestion from chewing, chemical digestion from saliva
Explanation:
Hey there!:
Molar mass Ca(NO2)2 = 132.089 g/mol
Mass of solute = 120 g
Number of moles:
n = mass of solute / molar mass
n = 120 / 132.089
n = 0.0009084 moles of Ca(NO2)2
Volume in liters of solution :
240 mL / 1000 => 0.24 L
Therefore:
Molarity = number of moles / volume of solution
Molarity = 0.0009084 / 0.24
Molarity = 0.003785 M
Hope that helps!
X-ray
Explanation:
X-rays are used medically by doctors to image the interior of the human body but can cause cell damage.
X-rays are energetic radiations that are classified as ionizing radiations.
They penetrate the skin and body tissues.
- X-rays were discovered by Wilhelm Conrad Röentgen In Germany in the year 1895.
- The rays have a wide range of application today.
- They are used in x-ray therapy to fight cancerous cells in the body.
Learn more:
X-ray brainly.com/question/6507143
#learnwithBrainly
The results are considered more reliable, based off the fact that when other scientists redid his experiment they found similar results but it’s not enough evidence to be more
