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Explain why Good scientific models can be tested and used to make predictions. What did Molina and Rowland's model of the interactions of CFCs and ozone in the atmosphere predict would happen to the amount

Ziv Glazer asked Oct 2, 2024

by Ziv Glazer

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How does Vm change when P Na is changed to 0.001?

Alex Ghiculescu asked Oct 2, 2024

by Alex Ghiculescu

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4 votes

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Lithium oxide is used aboard the space shuttle to remove water from the air supply Li₂O(s) + H₂O(g) → 2LiOH(s) Part A If 80.0 kg of water is to be removed and 69 kg of Li, is available, which reactant

Diogenesgg asked Oct 2, 2024

by Diogenesgg

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What is the concentration in molarity of a solution which is 14.79% m/v propylene glycol (mm = 76.09 g/mol) in ethylene glycol (mm = 62.07 g/mol)? A) 1.23 M B) 2.45 M C) 3.67 M D) 4.89 M

Feng Smith asked Oct 2, 2024

by Feng Smith

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1 answer

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192k views

Put these stars in order from least luminous to most luminous: red giant K star, supergiant F star, white dwarf A star. Question 6 options: White dwarf A, supergiant F and red giant K White dwarf A, red

PseudoAj asked Oct 2, 2024

by PseudoAj

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1 vote

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What does an acid do, according to the arrhenius definition? -tastes sour tastes sour releases an h ion in water releases an , -uppercase h superscript plus end superscript, -ion in water reacts easily

John Kary asked Oct 2, 2024

by John Kary

7.3k points

1 answer

1 vote

5.4k views

Select all of the double replacement reactions. A. CaO+CO, CaCO, B. Na₂CO3 → Na₂O + CO₂ c. KCl + AgNO3 → AgCl + KNO3 D. Cu + Ag (NO3)₂ → Ag+ Cu(NO3)₂ E. H₂SO4 +2NaOH → Na₂SO4 + 2H₂O C

Frank Modica asked Oct 2, 2024

by Frank Modica

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1 answer

2 votes

167k views

If given a 1.08g tetraethyllead sample, calculate the molar mass of tetraethyllead. a) 232.86 g/mol b) 278.21 g/mol c) 325.42 g/mol d) 196.54 g/mol

Tyana asked Oct 2, 2024

by Tyana

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2 votes

100.0k views

The temperature of carbon monoxide gas is 35 ºC when the volume is 500mL. When the volume of the gas is increased to 750mL without allowing pressure to change, what is the new temperature of the gas measured

KarlKFI asked Oct 2, 2024

by KarlKFI

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1 vote

134k views

Which of the following will form an electrolyte when added to water? OA) CC14(1) B) Pbl2(s) C) C₂H5OH (1) OD) HCl(g)

StuartM asked Oct 2, 2024

by StuartM

7.7k points

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5 votes

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What is the composition, in atom percent, of an alloy that consists of 92.5 wt% ag and 7.5 wt% cu?

Yagiz asked Oct 2, 2024

by Yagiz

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2 answers

3 votes

3.4k views

Is the atom indicated with an arrow nucleophilic, electrophilic, acidic, more than one of these choices, or none of these choices? (For purposes of this question, acidic is defined as pKa ≤ 25).

John Nicely asked Oct 2, 2024

by John Nicely

7.7k points

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3 votes

202k views

a 50.0 ml aliquot of unknown cu(ii) solution was exhaustively electrolyzed to deposit all copper on the cathode. the mass of the cathode was 15.327 g prior to electrolysis and 16.414 g after electrolysis.

Symbolrush asked Oct 2, 2024

by Symbolrush

7.9k points

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3 votes

22.0k views

What "berry," which is actually a seed, gives gin its predominant flavor?

Nageswara Rao asked Oct 2, 2024

by Nageswara Rao

8.0k points

1 answer

4 votes

235k views

What state do ionic compounds usually come in if it doesn't get dissolved?

Yahya Hussein asked Oct 2, 2024

by Yahya Hussein

8.7k points

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1 vote

92.4k views

What mechanism of formation of magma is represented by the experiment.justify your answer need Kona Po please

Eduardo Moniz asked Oct 2, 2024

by Eduardo Moniz

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2 votes

17.5k views

What does thermal energy refer to?

Santosh Patel asked Oct 2, 2024

by Santosh Patel

7.8k points

1 answer

2 votes

156k views

Which one of the following statements is not correct? A. Sodium and chlorine are elements B. Sodium chloride is a compound C. Sodium chloride is a pure substance D. NaCl is a heterogeneous mixture E. NaCl

Siddhanta Rath asked Oct 2, 2024

by Siddhanta Rath

7.6k points

1 answer

0 votes

133k views

28 °℃ = __? __K help.

Rafael Guillen asked Oct 2, 2024

by Rafael Guillen

8.0k points

1 answer

2 votes

138k views

At room temperature, n-pentane is a liquid and neopentane (2, 2-dimethylpropane) is a gas. Both compounds are nonpolar hydrocarbons. Which of the following forces is primarily responsible for this difference?

Jon Lauridsen asked Oct 2, 2024

by Jon Lauridsen

8.2k points

1 answer

2 votes

182k views

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