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A solution has [H⁺]= 1 x 10⁻⁵ and [OH⁻] = 1 x 10⁻⁹ M. What is the pH and pOH? A. pH= 5, pOH= 9 B. pH= 0, pOH= 5 C. pH= 9, pOH= 5 D. pH= 5, pOH= 0

Turtledove asked Oct 11, 2024

by Turtledove

8.7k points

1 answer

5 votes

188k views

If sequences of protein domains show >25% sequence identity, what can you say about their ancestry and structural similarity? what takes longer to change? structure or sequence? will mutation rate occur

Markus Malessa asked Oct 11, 2024

by Markus Malessa

7.3k points

1 answer

1 vote

18.8k views

How do you get crystals of zinc chloride from a solution of zinc chloride

Mondok Tamas asked Oct 11, 2024

by Mondok Tamas

8.9k points

1 answer

0 votes

120k views

Beryllium and magnesium which have the higher binding energy and atom radius

Rodamn asked Oct 11, 2024

by Rodamn

7.8k points

1 answer

4 votes

209k views

1 Al₂O3 + 3 H₂O → 2 Al(OH)3 What kind of reaction is this

Yeahman asked Oct 11, 2024

by Yeahman

8.3k points

1 answer

3 votes

117k views

Consider the following system at equilibrium at 698 k: 2hi(g) 2.49 kcalH₂(g) i2(g) if the temperature on the equilibrium system is suddenly increased: the reaction must: a. run in the forward direction

Cornwell asked Oct 11, 2024

by Cornwell

8.0k points

1 answer

1 vote

120k views

Suppose that you have a solid sample only containing the element Quakerium (Qu) and a small amount of Locust Carbonate (LoCO3). You add HCl to the sample, and both substances react completely with excess

Tony Kh asked Oct 11, 2024

by Tony Kh

7.8k points

1 answer

4 votes

169k views

Choose the ground state electron configuration for Ti2⁺. Group of answer choices: [Ar]4s23d4, [Ar]3d4, [Ar]4s2, [Ar]3d2, [Ar]4s23d2 Options: a. [Ar]4s23d4 b. [Ar]3d4 c. [Ar]4s2 d. [Ar]3d2

Dhaval Gevariya asked Oct 11, 2024

by Dhaval Gevariya

8.1k points

1 answer

1 vote

9.2k views

A piece of iron mass equals 25.0 g at 398 Calvin is placed in a Styrofoam cup containing 25.0 mL of water at 298 K assuming that no heat is lost to the cup or the surroundings what will the final temperature

Andrew Macheret asked Oct 11, 2024

by Andrew Macheret

8.0k points

1 answer

5 votes

189k views

What is the total number of electrons that can be held in all orbitals having the same principal quantum number n=3 ? Note: other 3 quantum numbers are not fixed.

Kghbln asked Oct 11, 2024

by Kghbln

7.8k points

1 answer

3 votes

104k views

A gas sample is held at constant temperature. What happens to the pressure of the sample if the volume is doubled and the number of molecules is doubled? a. The pressure decreases to 25% of its initial

Yatish Mehta asked Oct 11, 2024

by Yatish Mehta

8.1k points

1 answer

4 votes

734 views

How do you account for the disparities between different races of students? Why do you think this is happening?

Ievgen Martynov asked Oct 11, 2024

by Ievgen Martynov

8.0k points

1 answer

5 votes

138k views

ANSWER ASAP Tides As the Earth spins on its axis, the gravitational pull pushing inward and the centrifugal force pushing outward keep water levels equal. The gravitational force of the moon, however,

Djiby asked Oct 11, 2024

by Djiby

8.2k points

1 answer

3 votes

102k views

Without doing any calculations, determine which sample contains the most atoms. a 1-g sample of lithium a 1-g sample of iron a 1-g sample of uranium

Purring Pigeon asked Oct 11, 2024

by Purring Pigeon

8.6k points

1 answer

5 votes

204k views

redox titration determined that the 10.00 ml sample contained 2.354×10 (−5) moles of ascorbic acid. How many moles of citric acid are in the sample?

Equality asked Oct 11, 2024

by Equality

8.2k points

1 answer

3 votes

155k views

Column consists of two compounds (2-chloroheptane and butanoic acid). Which fractions contain only butanoic acid? Which fractions contain only 2-chloroheptane? Which are a mixture of the two? a) Fraction

Nomnom asked Oct 11, 2024

by Nomnom

8.4k points

1 answer

4 votes

99.3k views

What is the electron geometry and hybrid orbital of sio2

Latece asked Oct 11, 2024

by Latece

8.1k points

1 answer

0 votes

121k views

What is the universal solvent? O oil O acid O water O hydrogen

Cschroed asked Oct 11, 2024

by Cschroed

8.3k points

1 answer

1 vote

70.3k views

25g of NH3 is mixed with 4 mole of O2 is the given reaction a.which is the limiting reaction b.what mass of no is formed c.what mass of h2o is formed

Tavi asked Oct 11, 2024

by Tavi

8.5k points

1 answer

4 votes

161k views

What is the change in enthalpy (in kJ mol⁻¹) of the following reaction at -161.48˚C? CH₄(l) → CH₄(g)

Slavko asked Oct 11, 2024

by Slavko

8.6k points

1 answer

2 votes

117k views

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