3 years ago

1. Label axes according to input/output.

Chemistry

1 answer:

Naddik [55]3 years ago

5 0

Answer:1. height(in.)

2. arm span (in.)

3. (30,27)

Explanation: i just answered it and it was right:)

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Potassium hydrogen phthalate, KHC8H5O4, or KHP, is used in many laboratories, including general chemistry laboratories, to stand

Mamont248 [21]

Answer:

Molarity of the sodium hydroxide solution is 0.04687 M.

Explanation:

Amount of potassium hydrogen phthalate = 0.3420 g

Moles of potassium hydrogen phthalate = $\frac{0.3420 g}{204.2 g/mol}=0.001675 mol$

$KHC_8H_4O_4+NaOH\rightarrow NaKC_8H_4O_4+H_2O$

According to reaction, 1 mole of potassium hydrogen phthalate reacts with 1 mole of sodium hydroxide, then 0.001675 moles pf potassium hydrogen phthalate will :

$\frac{1}{1}\times 0.001675 mol=0.001675 mol$ of NaOH

Moles of sodium hydroxide = 0.001675 mol

Volume of sodium hydroxide solution = 35.73 mL = 0.03573 L (1 mL = 0.001 L)

$Molarity=\frac{Moles}{Volume (L)}$

Molarity of the sodium hydroxide solution :

$=\frac{0.001675 mol}{0.03573 L}=0.04687 M$

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3 years ago

Which set of coefficients will balance this chemical equation? __PbS(s) + __O2(g) → 2PbO(s) + 2SO2(g)

Elina [12.6K]

A two in both of the blanks will balence the equation. It will look like so:

2PbS(s) + 2O2(g) --> 2PbO(s) +2SO2(g)

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3 years ago

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I need help with this

alex41 [277]

Answer:

infrared for longer and ultraviolet for shorter

Explanation:

let me now if right

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Unlike the nervous system, the endocrine system ___ A) Responds quickly B) Does not respond C) Rarely responds D) Responds Slowl

valentina_108 [34]

D) Responds slowly

Good luck. It responds slower them the nervous system

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Element in the noble ga family are considered stabled because their outer energy levels are

blsea [12.9K]

Answer: In octet state.

Explanation: For noble gases they are stable in state since their outer shell contain fully occupied having 8 electrons.

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