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madam [21]
3 years ago
12

When you add milk, sugar and coffee to a cup of hot water, which of these explain that what you formed in a mixture?

Chemistry
1 answer:
damaskus [11]3 years ago
4 0

Answer:

I think it's D. Please let me know if it's wrong or right.

Explanation:

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What is the difference between a heterogeneous and a homogeneous mixture?
salantis [7]

Answer:

C IS YOUR CORRECT ANSWER

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6 0
3 years ago
What is the molar concentration of h3o+ in a cola that has a ph of 4.240?
Andreyy89

The pH is calculated using the expression: pH = - log [H3O+].  
 To find the concentration of [H3O+] 
 [H3O+] = 10^(-pH)  
 Solving the RHS we have 10^(-4.240) = 0.1440 
 Hence the concentration of H3O+ is 0.1440.
6 0
3 years ago
Complete and balance the following reactions ?<br> uo^2+ +cr2o^2-7 ــــــــــــــــ uo2+ +cr3+
motikmotik
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7 0
3 years ago
A liquid in lab has a density of 1.24g/cm3. What is the mass in grams of 254mL of the liquid?
o-na [289]

Answer:

Mass= 314.96  grams

Explanation:

The density of the substance is defined as mass per unit volume of it.

The formula is :

density=\frac{mass}{Volume}

<u><em>Unit conversion:</em></u>

1 liter = 1000 ml

1dm^{3}=1Liter

So

1dm^{3}=1000ml....(1)

1dm^{3} = (10cm)^{3}

1dm^{3}=1000cm^{3}

Replace The dm3 by cm3 in (1)

1000cm^{3}=1000mL

<u>1cm^{3}=1mL</u>

<u>Volume = 254 mL = 254 cm3</u>

<em><u>Calculation of mass</u></em>

density=\frac{mass}{Volume}

1.24=\frac{mass}{254cm^{3}}

mass=1.24\times 254

Mass= 314.96  grams(or 315 grams)

Note: Always makes same units before solving the question. You can not determine the mass if Volume is in mL and Density is in g/cm3. Change mL into cm3 first

8 0
3 years ago
How many pennies are in $2,020.20?
Nata [24]

Answer:

202,020 pennies

Explanation:

The amount of pennies in 1 dollar is 100.

Basically, you just multiply the whole dollar amount (2020) by 100 and then add 20 to find the amount of pennies.

(2020)(100)+20= 202,000+20= 202,020 pennies.

5 0
3 years ago
Read 2 more answers
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