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Which of the following solutions has the lowest mass by mass percentage? a) 8g of sodium bicarbonate in 160 g of water b) 16g of sodium bicarbonate in 200 g of water c) 12g of sodium bicarbonate in 180

Zephni asked Oct 1, 2024

by Zephni

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H_2 gas at STP occupies 57.5 L of space, how many moles of H2 are present? 1. 2565.36529033466 2. 2565.3652903346 3. 2565.3652903 4. 2565.365 5. 2565.3

Wilberto asked Oct 1, 2024

by Wilberto

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2 votes

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What sections of a SDS tell you how to protect yourself?

Boris Prohaska asked Oct 1, 2024

by Boris Prohaska

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2 votes

230k views

Which of the following is true for a 5-variable Karnaugh map? A. It has 16 cells. B. It can represent up to 32 different binary values. C. It can eliminate up to 4 variables from the output expression.

Thudani Hettimulla asked Oct 1, 2024

by Thudani Hettimulla

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2 votes

147k views

Photosynthesis lnvolves the

Karol Pisarzewski asked Oct 1, 2024

by Karol Pisarzewski

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0 votes

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What is the charge on an ion with 35 protons, 41 neutrons, and 36 electrons?

Rik Van Velzen asked Oct 1, 2024

by Rik Van Velzen

7.7k points

1 answer

4 votes

123k views

Phosphorous burns in air to produce a phosphorus oxide in the following reaction. What moles of phosphorus will be needed to produce 3.25 mol of P₄O₁₀ ? 4P(s) + 5O₂(g) ----> P₄O₁₀(s)

Liminal asked Oct 1, 2024

by Liminal

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1 answer

1 vote

7.4k views

How does the climates of tropical desert and a temperate desert differ

Sandeep Sherpur asked Oct 1, 2024

by Sandeep Sherpur

8.2k points

1 answer

1 vote

226k views

Why is there a "01g," and is it always present when finding the total mass of a compound?

Winkbrace asked Oct 1, 2024

by Winkbrace

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1 answer

1 vote

111k views

What is the most likely mechanism for the reaction b/w 1-chloropropane and sodium cyanide?

Katrin asked Oct 1, 2024

by Katrin

8.4k points

1 answer

3 votes

105k views

According to the following reaction, how many grams of water are needed to form 27.3 grams of oxygen gas ? water(l) hydrogen(g) + oxygen(g) _ grams water

Azzamsa asked Oct 1, 2024

by Azzamsa

7.8k points

1 answer

4 votes

209k views

Kb for ammonia (NH3) is 1.76 x 10-5 What is Ka for ammonium, its conjugate acid. (NH4+) 3 sig figs Answer: 5.68x10^-10 Using the answer above, what is the pH of a 0.140 M solution of NH4+?

Yu Zhang asked Oct 1, 2024

by Yu Zhang

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4 votes

164k views

A cold drink initially at 39°F warms up to 43°F in 2 min while sitting in a room of temperature 72°F. How warm will the drink be if left out for 20 min? If the drink is left out for 20 min, it will be

Prabodh Tapke asked Oct 1, 2024

by Prabodh Tapke

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207k views

what mass of hydrochloric acid (in grams) can be neutralized by 2.6 g of sodium bicarbonate? ( hint : begin by writing a balanced equation for the reaction between aqueous sodium bicarbonate and aqueous

Eyzuky asked Oct 1, 2024

by Eyzuky

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The molecule with only one double bond is: a) CO2 b) H2O c) CH4 d) C2H4 e) PH3

Eternity asked Oct 1, 2024

by Eternity

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3 votes

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Molarity of 25 ml of 3.8 M NaCl reacting with 198 ml (molar mass =58.5)? a) 0.48 M b) 3.64 M c) 4.26 M d) 6.12 M

Jon Fournier asked Oct 1, 2024

by Jon Fournier

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4 votes

187k views

In the lab, you work with different concentrations of hydrochloric acid. Which of these statements would BEST describe the results you would see if you were using a conductivity apparatus (measure of the

Abdallah Arffak asked Oct 1, 2024

by Abdallah Arffak

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92.3k views

What molecular tools do scissors and tape represent in this activity? A) Scissors represent DNA replication. B) Scissors represent RNA transcription. C) Scissors represent restriction enzymes. D) Tape

Distractedhamster asked Oct 1, 2024

by Distractedhamster

8.5k points

1 answer

3 votes

80.7k views

What is the physical state (room temperature) for ionic compounds?

Justin Grant asked Oct 1, 2024

by Justin Grant

8.0k points

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0 votes

111k views

The safety of a pesticide depends on its potency, concentration, quantity, and ______ of exposure. 1) frequency 2) time 3) location

Jamesplease asked Oct 1, 2024

by Jamesplease

7.7k points

1 answer

4 votes

110k views

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