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Questions (20)
iron(III) hydroxide---FeH3
ammonium bromide----NH4Br copper(I) sulfate---Cu2SO4 tin(II) oxide-----Sn2O2
3 answers
657 views
Identify the monoatomic ion that has the following properties.
a. 11 protons and 10 total electrons Na+ b. 9 protons and 8
2 answers
652 views
Give the name for each of the following:
(a) SiF4----Silicon tetraflouride (b) CuBr2---Copper dibromide (c) MgCO3---Magnesium
1 answer
576 views
give the total number of protons and electrons in each atom
Cr2+ 24 protons 22 electrons Cr3+ 24 protons 21 electrons Ni3+ 28
1 answer
1,946 views
How many moles of nitrogen is 1.52 × 10 17 nitrogen atoms?
1 answer
369 views
A sample of magnesium weighs 10 grams. How many moles of magnesium are there in the sample?
0.4 moles?
3 answers
1,364 views
How many carbon(C) atoms are present in 30. mol of carbon?
1.8*10^25
1 answer
645 views
For each, give the total number of electrons, the number of valence electrons, and the number of the energy level that holds the
1 answer
759 views
Using a periodic table, determine the number of electrons held in energy levels 1-3 of each atom.
B----2 in level 1--3 in level
1 answer
1,445 views
How many moles of iron is 67.9 g of Fe?
1.22 moles Fe? How many grams of iron is 6.57 × 10-2 mol Fe? 3.66 g Fe
1 answer
459 views
You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8
1 answer
421 views
A patient has 0.050 L of blood drawn and this volume of blood has a mass of 55.0 g. What is the density of the blood? Use
1 answer
540 views
An antibiotic is sold in 4.0 mL ampoules that contain 60.0 mg of drug (60.0 mg/ 4.0 mL). How many milliliters of the antibiotic
3 answers
622 views
Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0
1 answer
985 views
(2.60 x 10^3 x 0.897) + 2.69 (with correct # of sig figs)
IS the answer 2334.89
1 answer
445 views
Ethanol has a density of 0.780 g/mL. What volume would 500. grams of ethanol occupy. Answer with correct number of sig figs
2 answers
640 views
Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0
2 answers
1,207 views
A kitten's normal body temperature is 102ºF. Express this temperature in ºC.
1 answer
847 views
You are traveling in a country that uses the metric system. Your child is sick and a nurse determines her temperature to be 40.8
1 answer
588 views
Whose responsibility is it to determine if governmental acts are constitutional?
2 answers
503 views
Answers (5)
5.0
2,3,4
we have to have the right number of sig figs so wouldnt 0.4 be the right answer in terms of sig figs
1.3 ml
1100
