All categories

2 years ago

Provide 3 examples of substances that are mixtures and list the substances in them

Chemistry

2 answers:

swat322 years ago

7 0

Answer:

Explanation:

Sand and water - heterogeneous

Sugar and salt - heterogeneous

Ethanol in water - homogenous mixture

Vedmedyk [2.9K]2 years ago

3 0

Answer:

Water and salt = salt water

Oxygen and water = sea foam

Smoke and fog = smog

Explanation:

Hope this helped, nya~ :3

You might be interested in

How much energy does an X-ray with an 8 nm (8 x 10-9 m) wavelength have?

Vlada [557]

Answer: 2.48×10^-17 J

Explanation:

Given the following :

Wavelength = 8nm (8 x 10^-9 m)

Energy(e) of X-ray =?

Energy=[speed of light(c) × planck's constant (h)] ÷ wavelength

Speed of light = 3×10^8m/s

Planck's constant = 6.626×10^-34 Js

Wavelength = 8 x 10^-9 m

Energy = [(3×10^8) * (6.626×10^-34)] / 8 x 10^-9

Energy = [19.878×10^(8-34)] / 8 x 10^-9

Energy = 2.48475 × 10^(-26+9)

Energy = 2.48×10^-17 J

8 0

3 years ago

Number of

zzz [600]

Answer:

symbol= F

proton= 9

neutron= 19 I understand this is it ok for you

6 0

3 years ago

Each reation releases or absorbs a very large amount of energy per atom.

mario62 [17]

Answer:

chemical and nuclear reaction

Explanation:

4 0

3 years ago

Read 2 more answers

A reaction between liquid reactants takes place at −10.0°C in a sealed, evacuated vessel with a measured volume of 45.0L. Measur

maks197457 [2]

Answer: 0.0624 atm

Explanation:-

According to the ideal gas equation:

$PV=nRT$

P = Pressure of the gas = ?

V= Volume of the gas = 45.0 L

T= Temperature of the gas = -10.0°C = 263 K $0^00C=273K$

R= Gas constant = 0.0821 atmL/K mol

n= moles of gas

Moles of gas= $\frac{\text{ given mass}}{\text{ molar mass}}= \frac{19.0g}{146g/mole}=0.130moles$

$P=\frac{nRT}{V}=\frac{0.130\times 0.0821\times 263}{45.0}=0.0624atm$

The pressure of sulfur hexafluoride gas in the reaction vessel after the reaction is 0.0624 atm

3 0

3 years ago

how many electrons would a neutral atom of nitrogen need to gain in order to have a full valence electron shell?

hichkok12 [17]

N 1s²2s²2p³ + 3e⁻ → N⁻³ 1s²2s²2p⁶ [Ne]

3 electrons

3 0

3 years ago