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Assoli18 [71]
3 years ago
7

An object was measured by a worker as

Chemistry
1 answer:
Tamiku [17]3 years ago
3 0

Answer:

2.79 % error

Explanation:

Percent Error = 100 x [(Actual - Measured) / Actual]

Percent Error = 100 x [(17.900 - 14.700) / 17.900]

Percent Error = 100 x [0.5 / 17.900]

Percent Error = 100 x 0.02793

Percent Error = 2.7932 % or 2.79 %

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UkoKoshka [18]

Answer:

CaO + HNO3 = Ca(NO3)2 + H2O|

Explanation:

Nitric acid (HNO3(aq)) can be neutralized by calcium hydroxide (Ca(OH)2(aq)). Write a balanced chemical equation for the reaction between these two compounds and identify the salt that it produces.

3 0
3 years ago
Valence electrons will either ______________ or ______________ to form molecules.
Alja [10]

Answer:

ionic or covalent

Explanation:

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7 0
3 years ago
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The standard biological reaction Gibbs energy for the removal of the phosphate group from adenosine monophosphate is 14 kJ mol-1
nignag [31]

Answer: K = 284

Explanation:

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14 = 0.008314 × 298 × (InK)

14 = 2.477572 × InK

Ink = (14 ÷ 2.477542)

InK = 5.6507619

K = 284

7 0
4 years ago
Which statement about mixtures and solutions is incorrect?
harkovskaia [24]
B)all  solutions are mixtures

5 0
4 years ago
What is the structure of an<br> atom?
tresset_1 [31]

Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). The outermost regions of the atom are called electron shells and contain the electrons (negatively charged).

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3 years ago
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