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Vika [28.1K]
3 years ago
11

Can anyone please help?

Chemistry
1 answer:
Marrrta [24]3 years ago
5 0

is it me bc i cant even see the page:?

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Why does water float on corn syrup
NISA [10]

Answer:

density.

Explanation:

A cubic centimeter of water weighs 1 gram. Since a cubic centimeter of vegetable oil weighs less than 1 gram, oil will float on water. Corn syrup is more dense than water so 1 cubic centimeter of corn syrup weighs more than 1 gram. Therefore, corn syrup sinks in water.

5 0
3 years ago
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which of these sentences is true about nitrogen? a- as nitrogen is the rarest gas in the atmosphere, very few organism can use i
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B is true because plants can only use nitrogen in the form of nitrates, no other living thing needs nitrogen therefore the percentage of nitrogen in the atmosphere is 79%
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2 years ago
For the reaction A+B↽−−⇀C+DA+B↽−−⇀C+D , assume that the standard change in free energy has a positive value. Changing the condit
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3 years ago
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What is the empirical formula of a compound containing 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen?
Anvisha [2.4K]

Answer:

= C3H4N

Explanation:

We are given; 90 grams carbon, 11 grams hydrogen, and 35 grams nitrogen.

We first calculate the number of moles of each element.

Carbon = 90g/12 g/mol

            = 7.5 moles

Hydrogen = 11 g/ 1 g/mol

                 = 11 moles

Nitrogen = 35 g/ 14 g/mol

               = 2.5 moles

The we get the mole ratio of the elements;

= 7.5/2.5 : 11/2.5 : 2.5 /2.5

= 3 : 4.4 : 1

= 3 : 4 : 1

Therefore;

The empirical formula will be; C3H4N

6 0
3 years ago
When a hydrochloric acid solution is combined with a potassium hydroxide solution, an acid-base reaction occur?
Mariulka [41]

when hydrochloric acid is added to a potassium hydroxide solution, the acid and base would react to form salt(potassium chloride) and water

Chemical Formula:

HCl(aq) +KOH(aq) ---> KCl (aq) + H20 (l)

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3 years ago
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