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yanalaym [24]
2 years ago
13

Density is a measure of

Chemistry
1 answer:
Mice21 [21]2 years ago
8 0
Density is mass divided by volume.
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7 grams of oxygen gas is reacted with excess C4H8. How many grams of CO2 gas at STP are produced?
ladessa [460]
I think 14 are produced because if you go up by that you get it
4 0
2 years ago
What is the mass of 99.0 L of NO2 at STP
Mariana [72]
At STP one mole of any gas occupies 22.4 L

 moles NO2 = 99.0/22.4 = 4.42
mass NO2 = 4.42 mol x 46.0 g/mol=203 g
3 0
3 years ago
Explain why beryllium is produced when potassium is heated with beryllium
Vladimir [108]

Explanation:

The more reactive element replaces less reactive element during chemical reaction.

Since, potassium is more reactive than beryllium. When potassium reacts with beryllium choride, it replaces beryllium and forms potassium chloride and produces beryllium.

3 0
2 years ago
Indicators change color in acids or bases. What are the colors of the pH balance
lozanna [386]

Answer:

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the color of the pH balance is dark blue

Explanation:

A pH indicator corresponds to a substance that measures the pH of the solution in question. in the case of neutral substance the color that the solution takes is dark blue, if it is acidic it turns pink or red and basic of a green tone. Some examples of indicators: phenolphthalein, bromophenol blue, methyl red, among others.

8 0
2 years ago
EIGHTY POINTS- WILL GET BRAINLIEST NEED ANSWER ASAP
il63 [147K]

ans A. 13 to 3

solution:

Total puppies for sale=6

Total puppies left = 2

hence total puppies sold= 6 - 2 = 4

cost of a puppy= $ 104

so cost of 2 puppies = 104 x 4

=416$

Now for kittens:

Total kittens for sale = 12

Total kittens left = 8

hence total kittens sold=12 - 8 =4

cost of a kitten = $24

so cost of 4 kittens= 24x 4=96$

Now ratio of sales of puppies to kittens = 208$/96$

= 13/3 or 13:3 or 13 to 3

I hope this explanation will help you to understand this problem

5 0
2 years ago
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