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leonid [27]
3 years ago
14

If substance A has a density of 2.3 g/mL and water has a density of 1.00 g/mL will substance A float or sink in water? Explain i

n full sentences
Chemistry
1 answer:
UkoKoshka [18]3 years ago
5 0
Substance A will sink because it is more dense than water. An object that is more dense than water will sink and an object that is less dense than water will float.
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What name is used to describe the H-N-H group?
mamaluj [8]

Answer:

an amine group

Explanation:

Hope that helped :)

5 0
3 years ago
What is the hydroxide ion concentration of a solution whose pOH is 6.42?
Sergeeva-Olga [200]

Answer : The hydroxide ion concentration of a solution is, 3.8\times 10^{-7}M

Explanation :

As we know that:

pH : It is defined as the negative logarithm of hydrogen ion concentration.

Mathematically,

pH=-\log [H^+]

Similarly,

pOH : It is defined as the negative logarithm of hydroxide ion concentration.

Mathematically,

pOH=-\log [OH^-]

Given:

pOH = 6.42

6.42=-\log [OH^-]

[OH^-]=3.8\times 10^{-7}M

Therefore, the hydroxide ion concentration of a solution is, 3.8\times 10^{-7}M

7 0
3 years ago
When 2 grams of Hydrogen (H2) react with 32 grams of Oxygen (O2) the reaction yields hydrogen peroxide (H2O2). How many grams of
Alisiya [41]

<u>Given information:</u>

Mass of H2 = 2 g

Mass of O2 = 32 g

<u>To determine:</u>

Mass of H2O2 produced

<u>Explanation:</u>

The reaction between H2 and O2 can be given as:

H2 + O2 → H2O2

Based on the reaction stoichiometry:

1 mole of H2 reacts with 1 mole of O2 to form 1 mole of H2O2

# moles of H2  = mass of H2 / molar mass of H2 = 2 g/ 2 g.mol-1 = 1 mole

# moles of O2 = mass of O2/ molar mass of O2 = 32 g/ 32 g.mol-1 = 1 mole

Hence for the given reactant conditions, moles of H2O2 produced = 1

Mass of H2O2 = moles of H2O2 * molar mass H2O2 = 1 mole * 34 g.mole-1 = 34 g

<u>Ans</u>: 34 g of H2O2 is produced in this reaction

8 0
3 years ago
Read 2 more answers
Two elements that become bonded together after a chemical reaction are known as a
Margaret [11]

Answer:compound

Explanation:

5 0
3 years ago
A 2.00L canister is charged with C3H8 and O2 to a total pressure of 1.50 atm at 0.0 degrees C The mole fraction of C3H8 in the c
tankabanditka [31]

Answer:

c

Explanation:

6 0
2 years ago
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