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Write the chemical formula of dolomite that...
28 Write the chemical formula of dolomite that provides a source for both magi and calcium...
28 Write the chemical formula of dolomite that provides a source for both magi and calcium 8 00:29:12 Multiple Choice CaCO3 * Mg(OH)2 Ca(OH)2 + MgCO3 O O Ca(OH)2 + Mg(OH)2 CaCO3 * MgCO3 None of the above
please explain your answer. i will rate, thank you! -) Write the chemical formula of the...
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-) Write the chemical formula of the peroxide ion A) 02- B) O22– C) O- D) None of the above E) O2-
explain in detail, please. A23. What is the expression you would develop to calculate the molar...
explain in detail, please.
A23. What is the expression you would develop to calculate the molar solubility, s, of Ca(OH)2 in a 0.2 M CaCl2 solution? (A) 0.45 + 282 (B) 483 (C) 0.452 + 253 (D) 0.852 + 453 (E) 0.252 + s3 A24. A chemist separately measures out 3 x 10-4 mol calcium chloride, 3 x 10-4 mol magnesium chloride and 1.8 x 10-3 mol sodium hydroxide and dissolves each one of these in a volume of 100...
Hello, I am not sure what I am doing wrong. Could someone please explain :) Thank...
Hello, I am not sure what I am doing wrong.
Could someone please explain :)
Thank you!
The mineral dolomite contains magnesium carbonate. This reacts with hydrochloric acid. MgCO3(s) + 2 HCl(aq) + CO2(g) + MgCl, (aq) + H20(0) a. Write the net ionic equation for this reaction and identify the spectator ions. (If needed, use H3O+ for the hydronium ion. Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (3). If a...
Please answer al three questions. Thank you!! I Review I Constants I Periodic Table When a...
Please answer al three questions. Thank you!!
I Review I Constants I Periodic Table When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created nor are any destroyed. This concept is called conservation of Part A mass. Mass conservation can be seen in a balanced chemical equation, where the numbers of each kind of atom are the same on both sides of the reaction arrow. The figure (Figure 1) shows the reaction of...
Please answer ASAP!! will rate! thank you Part A Write the chemical equation for the reduction...
Please answer ASAP!! will rate! thank
you
Part A Write the chemical equation for the reduction of acetaldehyde to ethanol. Complete the reaction by dragging the appropriate labels to their respective targets. Note: not all labels will be used. Reset Help OH CH;-(-OH CO2 + NADH NAD NADH + H Hz-CH2-C- CH3-C-H HS - COA + NAD+ CH3-C-C-H (coenzyme) (coenzyme)
please explain your answer. i will rate, thank you! 26) 26) Which of the following can...
please explain your answer. i will rate, thank you!
26) 26) Which of the following can function as a chelating agent? A) OH- B) CO C) SCN- D) C2042-
Please explain step by step how you get the answer! (24) 2. Solve the following I....
Please explain step by step how you get the answer!
(24) 2. Solve the following I. Calculate the Molarities, Normalities and mg/l as CaCO3 for the following (a) 200 mg/l HCI (b) 100 mg/1 Ca(HCO3)2 II. Calculate the mg/l and mg/l as CaCO, for the following (a)0.05 N H2CO3 (b) 0.001M CHCl3 III. Calculate the mg/l for the following (a) 100 mg/l as CaCO3 of HCO3(b) 100 mg/l as CaCO3 of 5042
Please answer #10-14 & clearly explain your reasoning and indicate which # you are answering. Thank...
Please answer #10-14 & clearly explain your reasoning and indicate which # you are answering. Thank you so much! 10. DNA is more ____________ than RNA due to the absence of ______ group in the ribose. A. unstable, 3'-OH B. stable, 3'-OH C. unstable, 2'-OH D. stable, 2'-OH E. none of the above 11. The nucleotide that is present in RNA but not DNA is A. thymine. B. uracil. C. adenine. D. cytosine. E. guanine 12. Which of the following...
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca...
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca = 3, P = 1,0 = 4 B) Ca 3, P = 2, O = 4 C) Ca = 3, P = 2,0=8 D) Ca = 3, P = 1,0 = 8 E) none of the above le Ol be 20) What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms? A) O10P4 B) 100P4 C) 4P010...
28 Write the chemical formula of dolomite that provides a source for both magi and calcium 8 00:29:12 Multiple Choice CaCO3 * Mg(OH)2 Ca(OH)2 + MgCO3 O O Ca(OH)2 + Mg(OH)2 CaCO3 * MgCO3 None of the above
please explain your answer. i will rate, thank you!
-) Write the chemical formula of the peroxide ion A) 02- B) O22– C) O- D) None of the above E) O2-
explain in detail, please.
A23. What is the expression you would develop to calculate the molar solubility, s, of Ca(OH)2 in a 0.2 M CaCl2 solution? (A) 0.45 + 282 (B) 483 (C) 0.452 + 253 (D) 0.852 + 453 (E) 0.252 + s3 A24. A chemist separately measures out 3 x 10-4 mol calcium chloride, 3 x 10-4 mol magnesium chloride and 1.8 x 10-3 mol sodium hydroxide and dissolves each one of these in a volume of 100...
Hello, I am not sure what I am doing wrong.
Could someone please explain :)
Thank you!
The mineral dolomite contains magnesium carbonate. This reacts with hydrochloric acid. MgCO3(s) + 2 HCl(aq) + CO2(g) + MgCl, (aq) + H20(0) a. Write the net ionic equation for this reaction and identify the spectator ions. (If needed, use H3O+ for the hydronium ion. Use the lowest possible coefficients. Use the pull-down boxes to specify states such as (ag) or (3). If a...
Please answer al three questions. Thank you!!
I Review I Constants I Periodic Table When a chemical reaction occurs, atoms rearrange to form new compounds, but no new atoms are created nor are any destroyed. This concept is called conservation of Part A mass. Mass conservation can be seen in a balanced chemical equation, where the numbers of each kind of atom are the same on both sides of the reaction arrow. The figure (Figure 1) shows the reaction of...
Please answer ASAP!! will rate! thank
you
Part A Write the chemical equation for the reduction of acetaldehyde to ethanol. Complete the reaction by dragging the appropriate labels to their respective targets. Note: not all labels will be used. Reset Help OH CH;-(-OH CO2 + NADH NAD NADH + H Hz-CH2-C- CH3-C-H HS - COA + NAD+ CH3-C-C-H (coenzyme) (coenzyme)
please explain your answer. i will rate, thank you!
26) 26) Which of the following can function as a chelating agent? A) OH- B) CO C) SCN- D) C2042-
Please explain step by step how you get the answer!
(24) 2. Solve the following I. Calculate the Molarities, Normalities and mg/l as CaCO3 for the following (a) 200 mg/l HCI (b) 100 mg/1 Ca(HCO3)2 II. Calculate the mg/l and mg/l as CaCO, for the following (a)0.05 N H2CO3 (b) 0.001M CHCl3 III. Calculate the mg/l for the following (a) 100 mg/l as CaCO3 of HCO3(b) 100 mg/l as CaCO3 of 5042
19) How many of each type of atom are there in the formula Ca3(PO4)2? A) Ca = 3, P = 1,0 = 4 B) Ca 3, P = 2, O = 4 C) Ca = 3, P = 2,0=8 D) Ca = 3, P = 1,0 = 8 E) none of the above le Ol be 20) What is the correct formula of a compound that has ten oxygen atoms and four phosphorus atoms? A) O10P4 B) 100P4 C) 4P010...
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