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STALIN [3.7K]
3 years ago
10

Mixtures can be ____________ meaning that their particles are uniform in nature, or they can be_________________ meaning that th

eir particles are NOT uniform in nature.
homogenous, heterogeneous

heterogeneous, homogeneous

solutions, homogeneous
Chemistry
1 answer:
snow_lady [41]3 years ago
4 0
<span>homogenous, heterogeneous
</span>
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A nugget of gold has a mass of 28 grams and a volume of 1.45 cubic centimeters. What is the density?
Travka [436]

Answer:

0.01931034

Explanation:

Steps:

ρ =  m/v

       =  

28 gram

1.45 cubic meter

=  19.310344827586 gram/cubic meter

=  0.019310344827586 kilogram/cubic meter

7 0
3 years ago
What is the Molar Mass
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5 0
3 years ago
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What is the. color for base??????
valina [46]
It depends on the pH if the base. but normally light colors are for bases example blue green etc
4 0
3 years ago
A. 20 moles of NH3 are needed to produce how many moles of H2O?
tiny-mole [99]

a. 30 moles of H₂O

b. 2.33 moles of N₂

<h3>Further explanation</h3>

Given

a. 20 moles of NH₃

b. 3.5 moles of O₂

Required

a. moles of H₂O

b. moles of N₂

Solution

Reaction

4NH₃+3O₂⇒2N₂+6H₂O

a. From the equation, mol ratio NH₃ : H₂O = 4 : 6, so mol H₂O :

=6/4 x mol NH₃

= 6/4 x 20 moles

= 30 moles

b. From the equation, mol ratio N₂ : O₂ = 2 : 3, so mol N₂ :

=2/3 x mol O₂

= 2/3 x 3.5 moles

= 2.33 moles

7 0
3 years ago
Given: Mg3N2 + 3 K2O → 3 MgO + 2 K3N
Finger [1]

Answer:

0.11

Explanation:

This equation is not balanced because there is an unequal amount of O's on both sides of the equation. The left hand side has 4 P's and the right hand side has 4 P's. So the P atoms are balanced. The left hand side has 2 O's and the right hand side has 10 O's.

To fix this unbalanced equation a 5 in front of the O2 on the left hand side is added to make 10 O's on both sides resulting in

P4 + 5O2 = 2P2O5

The equation is now balanced because there is an equal amount of substances on the left and the right hand side of the equation.

6 0
3 years ago
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