Chemistry » Page 45

Chemistry

Amiyah Yates

How to balance s+hno3=h2so4+no2+h2o

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Chemistry

Clare Solomon

The outer part of the eye consists of the:

A) sclera

B) pupil

C) iris

D) cornea

E) retina

F) lens

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Chemistry

Haley Blackburn

Which of the following is not equal to 325 cg?

A. 3250 mg

B. 3.25 x 10 5 µg

C. 3.25 g

D. 3.25 x 10 - 3 kg

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Chemistry

Krystal Blackwell

Recall that the value of Kw for the autoionization of water varies with temperature. At the temperature of your body (37°C), Kw = 3.98 x 10-14 rather than 1.00 x 10-14. What is the pH of pure water at 37°C?

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Chemistry

Gwendolyn Barr

Zinc metal reacts with hydrochloric acid to produce zinc (II) chloride and hydrogen gas. How many liters of hydrogen gas will be produced at STP when 10.00 g of zinc metal is added to 23.8 mL of a 0.45 M hydrochloric acid solution?

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Chemistry

Mary Jane

Will Mark Brainliest if Correct

Read the given chemical reaction.

C2H6 + O2 → CO2 + H2O

How many moles of CO2 are produced during the complete combustion of 3.6 moles of C2H6?

1.8 moles

4.4 moles

7.2 moles

9.2 moles

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Chemistry

Raina Barajas

How many protons are in sodium-23

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Chemistry

Elsie Mccann

An alloy contains 54 g of pure silver and 18 g of pure copper. what is the percentage silver in the alloy?

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Chemistry

Taylor Morgan

Which of the following diatomic molecules is joined by a triple covalent bond?

A. O2

B. CI2

C. N2

D. He2

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Chemistry

Piper Andrews

Which of these compounds is likely to have very low solubilityvin water?

A.) NaCl

B.) HCl

C.) CF4

D.) CuSO4

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Chemistry

Guest

15

8. Why do real gases deviate from the ideal gas laws at low temperatures?

O The volume occupied by molecules becomes a significant part of the total volume.

O Masses of individual particles increase as kinetic energy decreases.

O Attractions between molecules cause a reduction in volume.

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Chemistry

Guest

Determine the fraction of an original sample of rn-222 that remains unchanged after 7.646 days

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Chemistry

Nayeli

What determines if an element is a solid or liquid at room temperature? this isn't a test question BTW.,

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Chemistry

Guest

An aqueous 0.839 M acidic acid solution is prepared with a total volume of 0.500 L. The molecular weight of acidic acid is 60.05G/mole what mass of acetic acid in grams is needed for the solution

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Chemistry

Kylan Mccoy

What is the phase change that occurs when a soild becomes a liquid

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