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
Svetllana [295]
3 years ago
11

5.

Chemistry
1 answer:
solniwko [45]3 years ago
4 0

The given 2 triangles are similar

Explanation:

Step 1 :

Given,

ABC is a triangle

N is the point on AB so that  ∠ABC = ∠ ACN

We need to show that the triangles ABC and ACN are similar

Step 2 :

Two triangles  are said to be similar if the corresponding angles are equal.

In the given triangles we have

∠A as the common angle

∠ABC = ∠ ACN

Since 2 angles of both the triangles are same, the third angle is also same, because the sum of the measures of all angles is 180 degrees

Hence the given 2 triangles are similar

You might be interested in
Select all of the answers that apply. what are the two main ingredients in air? oxygen carbon dioxide nitrogen helium hydrogen
RSB [31]
Carbon dioxide and nitrogen
8 0
3 years ago
Read 2 more answers
10 points
puteri [66]

Answer: Using more fossil fuels

Explanation: Burning fossil fuels releases Green House gasses into the atmosphere, such as carbon dioxide. The carbon dioxide in the atmosphere traps in heat, which causes global temperatures to increase.

3 0
3 years ago
What volume would 3.01•1023 molecules of oxygen gas occupy at STP?
Sliva [168]
First, find moles of oxygen gas: (3.01 x10^23 molec.)/(6.02 x10^23) =0.5mol O2


Second, multiply moles by the standard molar volume of a gas at STP:(0.5mol)(22.4L) = 11.2L O2
6 0
4 years ago
Determine the molality of a solution of methanol dissolved in ethanol for which the mole fraction of methanol is 0.135. Give you
Alja [10]

<u>Answer:</u> The molality of the solution is 0.11 m

<u>Explanation:</u>

We are given:

Mole fraction of methanol = 0.135

This means that 0.135 moles of methanol is present in 1 mole of a solution

Moles of ethanol = 1 - 0.135 = 0.865 moles

To calculate the mass for given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Moles of ethanol = 0.865 moles

Molar mass of ethanol = 46 g/mol

0.865mol=\frac{\text{Mass of ethanol}}{46g/mol}\\\\\text{Mass of ethanol}=(0.865mol\times 46g/mol}=39.79g

To calculate the molality of solution, we use the equation:

Molality=\frac{m_{solute}\times 1000}{M_{solute}\times W_{solvent}\text{ (in grams)}}

Where,

m_{solute} = Given mass of solute (methanol) = 0.135 g

M_{solute} = Molar mass of solute (methanol) = 32 g/mol

W_{solvent} = Mass of solvent (ethanol) = 39.79 g

Putting values in above equation, we get:

\text{Molality of methanol}=\frac{0.135\times 1000}{32\times 39.79}\\\\\text{Molality of methanol}=0.106m\approx 0.11m

Hence, the molality of the solution is 0.11 m

6 0
4 years ago
You react 2.33 g of iron (III) chloride with 50.0 mL of 0.500 M solution of sodium phosphate to
nikklg [1K]

Answer:

2.33g of iron (iii) chloride

50.0 mL of 5.00 M of sodium phosphate

FeCl3 + Na3PO4 > Fe(PO4) + 3NaCl

mol = conc × vol = 0.5 × 50/1000 = 0.025 mol Na3PO4

from the equation:

1 mol of Na3PO4 reacts with 1 mol FeCl3 = 3 mol of NaCl

0.025 mol = x

x = 0.0025 × 3 = 0.075 mol NaCl

mass = 0.075 g × 59 g/mol = 4.425 g NaCl

i guessed all of this so i dont know i it is correct

3 0
3 years ago
Other questions:
  • Why does it take a large truck longer to stop than a compact car, even though both are traveling at the same velocity?
    9·2 answers
  • The​ half-life of​ carbon-14 is 5600 years. if a piece of charcoal made from the wood of a tree shows only 6363​% of the​ carbon
    10·1 answer
  • A 0.1149-g sample of solid magnesium is burned in a bomb calorimeter that has a heat capacity of 1769 J/°C. The calorimeter cont
    11·1 answer
  • What are the total electron pairs in AsH3
    11·1 answer
  • if a and b are directly proportional and the value of a becomes 1/4 as much ,what happens to the value of b
    10·1 answer
  • HHHHEEELLLPPPP PLZ ANd thanks mfs .
    14·1 answer
  • Name two types of silk
    14·1 answer
  • What is the mass of 3.01 x 10^21 atoms of Co
    14·1 answer
  • Problems 307 How many milliliters of a 2.5 M NaCl solution would be needed to prepare each solution? a. 1.5L of a 0.75m solution
    14·1 answer
  • Monosaccharides and disaccharides are types of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!