Ask a New Question
Search
Questions and answers by
kr
Questions (20)
iron(III) hydroxide---FeH3
ammonium bromide----NH4Br copper(I) sulfate---Cu2SO4 tin(II) oxide-----Sn2O2
3 answers
614 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
594 views
Give the name for each of the following:
(a) SiF4----Silicon tetraflouride (b) CuBr2---Copper dibromide (c) MgCO3---Magnesium
1 answer
527 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
1,861 views
How many moles of nitrogen is 1.52 × 10 17 nitrogen atoms?
1 answer
330 views
A sample of magnesium weighs 10 grams. How many moles of magnesium are there in the sample?
0.4 moles?
3 answers
1,300 views
How many carbon(C) atoms are present in 30. mol of carbon?
1.8*10^25
1 answer
600 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
702 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
1,342 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
416 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
370 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
477 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
559 views
Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0
1 answer
923 views
(2.60 x 10^3 x 0.897) + 2.69 (with correct # of sig figs)
IS the answer 2334.89
1 answer
404 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
592 views
Zenapax® is used as part of immunosuppressive therapy for transplant patients. The dosage is calculated on the basis of 1.0
2 answers
1,148 views
A kitten's normal body temperature is 102ºF. Express this temperature in ºC.
1 answer
805 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
540 views
Whose responsibility is it to determine if governmental acts are constitutional?
2 answers
449 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
