Make observations about the structure of each snowflake, and describe the types of symmetry that a snowflake can have. The structure of each snowflake is based on a regular hexagon. Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. Theoretically, every snowflake should have rotational symmetry at angles whose measures are multiples of (Do not include the degree symbol in your answer.) and will not have reflectional symmetry. O B. Theoretically, snowflakes should not have any symmetry. O C. Theoretically, every snowflake should have (Do not include the degree symbol in your answer.) lines of symmetry and rotational symmetry at angles whose measures are multiples of D. Theoretically, every snowflake should have lines of symmetry and will not have rotational symmetry.

CuBr2(aq) + K3PO4(aq) 个

Please help me

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I am struggling to get this question right and would really appreciate any help. Pls make sure you’re anser is corrrecf 100% pls and thank you !

Which of the following is not a characteristic property of a sample? O magnetism melting point O solubility O volume O color

9 4 12 19.4Ве + 2Hе — 6С+ le 2 1H 1 On 1H

You have a 11.5 mg sample of blood that contains various proteins. Hemoglobin is the only protein in the sample containing Fe. Hemoglobin contains 3.83% by mass of a compound called heme (C₃₄H₃₂FeN₄O₄, MW = 616.49 g/mol). You find that your 11.5 mg blood sample contains 34.9 micrograms of Fe. What is the mass percent of hemoglobin in your protein sample?   -don't prematureley round