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
pashok25 [27]
3 years ago
8

Hi can someone please help me!

Chemistry
1 answer:
Ratling [72]3 years ago
7 0

Answer:

a) 2

b) 2

c) 5

d) 5

e) 5

Explanation:

a) There is 1 Ag atom and 1 Cl atom. <em>When there's no subscript number next to an element, it means there is only one.</em>

b) There is 1 Ca atom and 1 O atom.

c) There are 3 Mg atoms (there's a subscript 3 next to Mg) and 2 N atoms.

d) There are 2 Al atoms and 3 O atoms.

e) There are 2 Sc atoms and 3 S atoms.

You might be interested in
In Period 3, from left to right in order, each successive
emmasim [6.3K]
Here are some trends you should know.
Electronegativity increases as you go right and up along the periodic table.
       So, (1) is wrong
Atomic mass increases as you go right and down along the periodic table.
       So, (2) is wrong
Proton number or atomic number increases as you go right and down in the table.
       So, (3) is correct
Metallic character increases as you go left and down along the periodic table.
       So, (4) is wrong
8 0
3 years ago
Read 2 more answers
What are differences between vaccines and antibotics
lara31 [8.8K]

Answer:

Explanation:

Antibiotics are chemical agents that are used to treat bacterial infections. ... Vaccines are used to prevent infection, particularly viral infections.

3 0
3 years ago
Read 2 more answers
What is the molecular formula of a compound made of 25.9% N and 74.1% O?
Inessa05 [86]


D.

If we take a sample of 100g of the given compound, we should find that it contains 74.1g of oxygen and 25.9g of nitrogen. The molar masses of oxygen and nitrogen are approximately 16.0g/mol and 14.0g/mol respectively. To find the appropriate number of moles of oxygen and nitrogen found in one mole of the given compound, we divide the mass of the sample by the molar mass of each substance.

For oxygen: 74.1g/(16.0g/mol) = 4.63125 mol (round up to 5 mol)

For nitrogen: 25.9g/(14.0g/mol) = 1.85 mol (round up to 2 mol)

Therefore one mole of this compound contains 2 moles of nitrogen and 5 moles of oxygen.

8 0
3 years ago
Read 2 more answers
How many grams of Zn could be extracted from 300. g of ZnS
BabaBlast [244]
150grams of zinc can be extracted
7 0
3 years ago
Describe an experiment to show that pressure acts in all directions in liquids.​
boyakko [2]

We frequently observe kids playing with polythene bags filled with water that have little holes drilled into them at various locations so they can sprinkle water on other kids. Through this experiment, we can say that pressure acts in all directions in liquids.

<h3>Liquid's pressure</h3>

Since both liquids and gases may flow, they are both referred to as fluids. Fluids under rest pressure behave uniformly in all directions.

Weather forecasts can be made using barometers. They track the evolution of atmospheric pressure throughout time.

On weather forecast maps, pressure variations appear as an isobar pattern. Predictions are made using these changes in pressure, and they are fairly accurate when combined with wind observations.

<h3>Pressure and depth in liquids</h3>

As you go away from a liquid's surface, pressure rises. for instance: A bucket has three holes that are all the same size. Since there is more pressure at the bucket's bottom, the water spills out more forcefully. Dams are thicker at the bottom for this reason.

Learn more about Pressure here:-

brainly.com/question/27984798

#SPJ9

3 0
2 years ago
Other questions:
  • What is the mass of 0.500 mole of Ba? (Watch sf’s)
    14·1 answer
  • What does a concentration gradient do to etc?
    15·1 answer
  • Which allotrope of carbon is the most malleable?
    12·1 answer
  • I need help like sonic fast
    5·1 answer
  • Which model is based on Bohr's quantum model?
    8·2 answers
  • Help me out with those two letters pls
    12·1 answer
  • Which of the following organisms are autotrophs?
    10·2 answers
  • Do your structures resemble the following?<br> H-C=C-H
    7·1 answer
  • Which of the following best describes how water evaporates? *
    15·1 answer
  • Help pls #5 !!!!!!!!!!!!!!!!
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!