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WITCHER [35]
3 years ago
12

The quantity of heat required to change the temperature of 1 g of a substance by 1°C is defined as ____.

Chemistry
1 answer:
Allushta [10]3 years ago
5 0

Answer:

specific heat

Explanation:

please like,rate and tag as brainliest

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There are four stages in the metamorphosis of butterflies and moths: egg, larva, pupa, and adult.

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2 years ago
How can a scientist make sure that the results are not a mistake in an experiment?
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What is the correct name for the cyclic alkane shown on the right?
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Problem Page Suppose 25.1g of barium nitrate is dissolved in 200.mL of a 0.50 M aqueous solution of ammonium sulfate. Calculate
melomori [17]

Answer:

1.26 M

Explanation:

The ion nitrate is NO₃⁻ and the Barium is from group 2 so it forms the ion Ba²⁺, so the barium nitrate has the formula: Ba(NO₃)₂. The molar masses are: Ba: 137 g/mol, N = 14 g/mol, O = 16 g/mol, so the molar mass of barium nitrate is:

137 + 2x(14 + 3x16) = 199 g/mol

The number of moles is the mass divided by the molar mass, so:

n = 25.1/199 = 0.126 mol of Ba(NO₃)₂

In 1 mol of the salt, there are 2 moles of NO₃⁻, so the number of moles of nitrate is 0.252 mol. Nitrates formed with ammonium (that can react when the solid dissolves) and with elements from group 1 and 2 are completely soluble in water. So, the moles of nitrate will remain 0.252 mol.

The molarity is the number of moles divided by the volume (0.2 L):

[NO₃⁻]= 0.252/0.2 = 1.26 M

3 0
2 years ago
A molecule of common table salt, or nacl, is the result of _____ bond forming between a sodium (na) atom and a chlorine (cl) ato
jekas [21]
I believe the correct term to fill in the blank would be ionic. A molecule of common table salt, or nacl, is the result of ionic bond forming between a sodium (na) atom and a chlorine (cl) atom. Ionic bonding is a result of complete transfer of electrons between atoms. It usually happens between a metal and a nonmetal.
4 0
3 years ago
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