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
nlexa [21]
3 years ago
14

I/3 of 12 = 2/3 ofplease help at 11 o'clock am it needs to be done ​

Chemistry
1 answer:
Nostrana [21]3 years ago
4 0

Answer:

6

Explanation:

This question is seeking for an equivalent of one expression. The first expression says 1/3 of 12, which means 1/3 × 12 = 4. To find 2/3 of a number that will give us 4, we say

Since; 1/3 of 12 is 4

Then, 4 = 2/3 of x, where x is the number, which when multiplied by two-third (2/3) will result to 4.

4 = 2/3 × x

4 = 2x/3

Cross multiply

2x = 3 × 4

2x = 12

x = 12/2

x = 6.

This means that; 1/3 of 12 = 2/3 of 6

You might be interested in
A chemical reaction was used to produce 2.95 moles of copper(II) bicarbonate, Cu(HCO3)2.
BARSIC [14]

Answer:

About 547 grams.

Explanation:

We want to determine the mass of copper (II) bicarbonate produced when a reaction produces 2.95 moles of copper (II) bicarbonate.

To do so, we can use the initial value and convert it to grams using the molar mass.

Find the molar mass of copper (II) bicarbonate by summing the molar mass of each individual atom:

\displaystyle \begin{aligned} \text{MM}_\text{Cu(HCO$_3$)$_2$} &= (63.55 + 2(1.01)+2(12.01)+6(16.00))\text{ g/mol} \\ \\  &=185.59\text{ g/mol} \end{aligned}

Dimensional Analysis:

\displaystyle 2.95\text{ mol Cu(HCO$_3$)$_2$}\cdot \frac{185.59 \text{ g Cu(HCO$_3$)$_2$}}{1 \text{ mol Cu(HCO$_3$)$_2$}} \Rightarrow 547 \text{ g Cu(HCO$_3$)$_2$ }

In conclusion, about 547 grams of copper (II) bicarbonate is produced.

8 0
3 years ago
What are the 3 primary consumers and what are the 3 secondary consumers
goldenfox [79]
Primary:
Grasshopper
Mouse
Grass

Secondary:
Hawk
Snake
Coyote 
8 0
3 years ago
How many elements are in N2 and how many atoms are in N2?
Lady bird [3.3K]

Answer:

2

Explanation:

7 0
3 years ago
Read 2 more answers
Can someone help me please :)
Fudgin [204]
I think it’s the third option but I’m not entirely sure
3 0
3 years ago
Read 2 more answers
Which of the following statements is true about an endergonic reaction? ∆G is positive ∆G is negative ∆S is negative
Mazyrski [523]
The answer is the first option, <span>∆G is positive.</span><span> </span><span>Endergonic reaction is a chemical reaction where the Gibbs free of energy is positive and there is abosrption of energy. It is a nonspontaneous reaction or unfavorable reaction.</span>
8 0
3 years ago
Other questions:
  • Which of these minerals and mineral resources is composed of the remains of ancient marine organisms
    6·2 answers
  • A 500.0 ml buffer solution contains 0.30 m acetic acid (ch​3​cooh) and 0.20 m sodium acetate(nach​3​coo). what will the ph of th
    14·1 answer
  • Write ground-state electron configurations for Na+ using a noble gas core abbreviation.
    14·1 answer
  • Which statement about the orinoco river is true.
    9·1 answer
  • When 3.0 grams of H2 is reacted with excess C at constant pressure, the reaction forms CH4 and releases 53.3 kJ of heat. C(s) +
    6·1 answer
  • KOH + HBr - KBr + H2O<br> Which is the acid in this reaction?
    5·2 answers
  • What is the freezing point of a solution prepared from 45.0 g ethylene glycol (C2H6O2) and 85.0 g H2O? Kf of water is 1.86°C/m.
    9·1 answer
  • BaO2(s) + 2HCl(aq) → H2O2(aq) + BaCl2(aq) What mass of hydrogen peroxide should result when 1.50 g barium peroxide is treated wi
    7·1 answer
  • A sample of iron is put into a calorimeter (see sketch at right) that contains of water. The iron sample starts off at and the t
    6·1 answer
  • The barometric pressure in Breckenridge, Colorado (elevation 9600 ft) is 580 mmHg. How many kPa is this?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!