1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
fiasKO [112]
2 years ago
14

Lime is used in farming to reduce the acidity of the soil. The chemical name for lime is calcium oxide. When the water in the so

il reacts with lime, what base is formed?
CaO


CaOH


Ca(OH)2


Ca2OH
Chemistry
1 answer:
topjm [15]2 years ago
5 0
Ca(OH)2

Make sure your charges are balanced when you write the compound. Ca has a +2 charge and OH has a -1 charge so you need 2 of OH.
You might be interested in
How many neutrons would an atom of fluorine have?
lord [1]

Answer:

9

Explanation:

6 0
3 years ago
Read 2 more answers
Which statement correctly describe the nucleus of the atom
Elza [17]

Protons,neutrons,electrons

5 0
2 years ago
Question 4 Solve and report to correct number of significant figure 2.375 + 4.5​
DiKsa [7]

Answer:

6.9 (two sig figs)

Explanation:

2.375 + 4.5 = 6.875 = 6.9

When adding or subtracting, sig figs are determined by the least number of digits past the decimal point.

8 0
3 years ago
1. Some athletes have as little as 3.0% body fat. If such a person has a body mass of 65 kg, how many pounds of body fat does th
77julia77 [94]
1. 3.0% ----> 3.0 kg fat= 100 kg body weigh
also remember that 1 kg= 2.20 lbs

65 kg  \frac{3.0 kg}{100 kg} x  \frac{2.20 lb}{1 kg} = 4.29 lbs

2. 0.94 g/mL----> 0.94 grams= 1 mL
1 Liters= 1000 mL
1kg= 1000 grams

3 Liters  \frac{1000 mL}{1 L} x   \frac{0.94 grams}{1 mL} x  \frac{1 kg}{1000 g} x   \frac{2.20 lbs}{1 kg}  = 6.20 lbs
3 0
3 years ago
Read 2 more answers
How many grams of Mg are needed to produce 224 g of MgO in the complete reaction of Mg
zmey [24]

Answer:

134.4 g of Mg

Explanation:

reaction:

2Mg + O2 ➡️ 2MgO

1) find the mol of MgO

mol = mass / molar mass

mass = 224 g

molar mass = 24+16 = 40

mol = 224 / 40

= 5.6 moles

2 mol = 5.6 moles

2) find the mass of Mg

mass = mol × molar mass

mol = 5.6

molar mass = 24

mass = 5.6 × 24

= 134.4 g

7 0
3 years ago
Other questions:
  • In a laboratory experiment, John uses a mesh to separate soil particles from water. Which technique of separation is he using?
    13·1 answer
  • Which difection do most weather systems move in the united states
    12·2 answers
  • What is formed when two Bromine atoms bond together?
    10·1 answer
  • HELPPPPP ME ASAP!<br><br>It's urgent ​
    7·1 answer
  • What is the mass of 2.80 grams of H2O
    10·1 answer
  • Every conversion factor is a ratio that is<br> equal to 1<br> less than 1<br> greater than 1
    12·1 answer
  • imagine that a classmate is quizzing you on the structure of an unknown element. all she can tell you is what the atomic mass is
    10·1 answer
  • More True Or False Questions ​
    8·1 answer
  • Please help as soon as possible
    14·2 answers
  • (ONLY ANSWER IF U R SURE PLZ) A scientist is performing a fermentation of bioethanol and the current pH is roughly 6.5. What sho
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!