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
hjlf
3 years ago
11

Why do we need to have common denominators when adding fractions?

Chemistry
1 answer:
jeyben [28]3 years ago
3 0
So that we have the right answer once we do the addition
Say that I measure my self at 12 feet with one measuring stick, and go on with another measuring stick that tells me I'm 3 meters tall, if I added those, I would be at something like 15/46 or something like that. See that would be wrong. We would want the right denominator so that it could be easier and also correct.
You might be interested in
Can someone help me? We literally started this unit yesterday and I got quarantined so I dont have a clue what im doing..
zloy xaker [14]

Answer:

Explanation:

Take out your periodic table.

The choices that have one 1 member of the periodic table on it are elements.

He is the symbol for Helium

O2 oxygen

C3 but this is really odd. It is Carbon but Carbon usually does not  combine in 3s.

The rest are all compounds (they are made up of the elements on the periodic table). For example

H2SO4

is made up of 2 Hydrogens

1 sulfur

4 oxygens.

All the others do exactly the same thing.

3 0
3 years ago
A gaseous fluorinated methane compound has a mass of 8.00 g at 2.81 atm and 300. K in a 1.00 L container.
UNO [17]

Answer:are you there

Explanation:

3 0
3 years ago
Is it possible for a molecule only made up of hydrogen and carbon to be polar?
Elina [12.6K]

It is not possible for the molecule made up of hydrogen and carbon to be polar. Molecules made up of carbon and hydrogen atoms have a structure that is almost symmetric and most of the time the molecule acts like it is nonpolar. 

6 0
3 years ago
Identify four general properties that make an NSAID unique as compared to the NSAID aspirin. List specific properties that make
Natasha2012 [34]

Answer:

NSAIDs are steroidal anti-inflammatories, their action is on the phospholipase A2 enzyme, this enzyme is responsible for breaking down the phospholipids of the membrane to trigger an inflammatory response. This is how steroidal anti-inflammatory drugs inhibit ALL inflammatory pathways (not like NSAIDs that they only inhibit the COX pathway).

These corticosteroid drugs cannot exceed the systemic mineralocorticoid value 1 in the body, since this corticosteroid hormone is also released by the adrenal cortex.

The NSAIDs generate: sporadic peaks in blood glucose, hypertension, fluid retention, increase in body fat mass, possible suppression of the adrenal cortex over time, inhibiting endogenous synthesis of corticosteroids.

On the other hand, naproxen and ibuprofen are NSAIDs, that is, non-steroidal anti-inflammatory drugs that do not influence both routes of inflammation, but only COX, this enzyme is abbreviated as COX but is called cyclooxygenase, and is responsible for a single route of inflammation.

NSAIDs such as naproxen and ibuprofen can cause gastric disorders such as ulcers or gastritis if they are consumed in a very repetitive manner.

In addition, both drugs are anti-inflammatory, analgesic and antipyretic. Although its two main functions are the first two, it was shown to have an effect in lowering body temperature.

That they are anti-inflammatory means that they inhibit the path of inflammation and analgesics the path of pain.

Explanation:

Both types of drugs generate the same effect but by different mechanisms.

Some are steroids and others are not, although steroids are considered to have a greater risk of benefit that is why they are administered against more systematically compromised instances such as anaphylactic shock.

NSAIDs such as naproxen and ibuprofen are the most prescribed today, since they have few risks and very good benefits, meaning that their adverse effects are not lethal or highly relevant and have a good effect on symptoms.

Both must be administered with care when treating a diabetic patient since corticosteroids generate glycemic peaks or increase in blood glucose, and NSAIDs compete for plasma protein with oral hypoglycemic agents, thus generating that these are in higher free concentrations. high diffusing better through the tissues and increases the potency of the adverse effects of these.

5 0
3 years ago
For the reaction
oksano4ka [1.4K]

Answer:

3.3792 g

Explanation:

The balanced equation for the reaction is given as;

2 C2H2(g) + 3 O2(g) --> 2 CO2(g) + 2 H2O(g)

From the reaction;

2 mol of C2H2 requires 3 mol of O2

2.0 g of C2H2

Number of moles = Mass / Molar mass = 2 / 26.04 = 0.07680 mol

5.0 g of O2

Number of moles = Mass / Molar mass = 5 / 32 = 0.15625 mol

The limiting reactant is; C2H2

2 mol of C2H2 produces 2 mol of CO2

0.07680 mol produces x

Solving for x;

x = 0.07680 mol

Mass = Molar mass * Number of moles = 44 g/mol * 0.07680 mol = 3.3792 g

7 0
3 years ago
Other questions:
  • A physician may need to increase a patient's prescribed dosage if he or she has developed what?
    11·1 answer
  • For which of the following processes would you expect there to be an increase in entropy? Ag+(aq) + Cl-(aq) AgCl(s) H2O(g) H2O(l
    11·2 answers
  • PLEASE HELP ASAP! What part of the atom determines physical properties? A. Neutron B. Proton C. Nucleus D. Electron
    5·1 answer
  • Which type of organism carries out cellular respiration
    14·2 answers
  • Which of the following items would dissolve most quickly in a glass of warm water?
    13·1 answer
  • A1(OH)3 + HNO3–> H2O + A1(NO3)3
    11·1 answer
  • In the reaction 2Li(s) + 2H20(1) 2LIOH(aq) + H2(g), which compound is in
    9·1 answer
  • Can someone please help with this I need the answers for the three boxes
    13·1 answer
  • When performing physical exercise, the heart rate, by what percentage can it be increased?
    14·2 answers
  • How many sublevels inn the second energy level?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!