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 moles of SnF₂ will be produced along with 48 grams of H₂? *
KIM [24]

Answer: 24 moles of SnF_2 are produced.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

{\text{Moles of}  H_2}=\frac{48g}{2g/mol}=24moles

Sn+2HF\rightarrow SnF_2+H_2

According to stoichiometry :

1 mole of H_2 is accompanied with = 1 mole of SnF_2

Thus 24 moles of H_2  is accompanied with =\frac{1}{1}\times 24=24moles  of SnF_2

Thus 24 moles of SnF_2 are produced.

8 0
3 years ago
A sample of octane undergoes combustion according to the equation 2 C8H18 + 25 O2 → 16 CO2 + 18 H2O ΔH°rxn = -11018 kJ. What mas
Anna71 [15]

Answer:

\large \boxed{\text{528.7 g} }

Explanation:

It often helps to write the heat as if it were a reactant or a product in the thermochemical equation.

Then you can consider it to be 11018 "moles" of "kJ"  

We will need a chemical equation with masses and molar masses, so, let's gather all the information in one place.

M_r:                      32.00

              2C₈H₁₈ + 25O₂ ⟶ 16CO₂ + 8H₂O + 11 018 kJ

n/mol:                                                                  7280

1. Moles of O₂

The molar ratio is 25 mol O₂:11 018 kJ

\text{Moles of O}_{2} = \text{7280 kJ} \times \dfrac{\text{25 mol O}_{2}}{\text{11 018 kJ}} = \text{16.52 mol O}_{2}

2. Mass of O₂

\text{Mass of C$_{8}$H}_{18} = \text{16.52 mol O}_{2} \times \dfrac{\text{32.00 g O}_{2}}{\text{1 mol O}_{2}} = \textbf{528.6 g O}_{2}\\\text{The reaction requires $\large \boxed{\textbf{528.67 g O}_{2}}$}

3 0
3 years ago
Cell is to a tissue as brick is to _______.<br> Cement<br> Clay<br> Bricklayer<br> wall
svet-max [94.6K]

Answer:

bricklayer

Explanation:

is the correct answer

6 0
3 years ago
A patient can't move his legs after a motorcycle accident. The doctor suspects nerve damage. What part of the peripheral nervous
Nutka1998 [239]
Motor neuron! it included volentoury movement.
5 0
4 years ago
Read 2 more answers
Which characteristic makes legumes a good food source for food-insecure<br> populations?
vova2212 [387]

Legumes are much easier to grow than other plants, and are more adaptable.

6 0
3 years ago
Read 2 more answers
Other questions:
  • When scientists look at these examples, what do they know about the atoms? Carbon-12 Carbon-14
    7·1 answer
  • Class science A revolution occurs:
    15·2 answers
  • The rungs of the DNA ladder are made up of _________.
    15·1 answer
  • Name the following straight-chain Alkanes (picture)
    9·1 answer
  • What type of atoms typically loses an electron?
    12·1 answer
  • What are two properties of diamonds that make them different from other forms of carbon?
    12·1 answer
  • Indicate the charge the following elements as they achieve the noble gas configuration.
    15·1 answer
  • El volumen de un gas en un recipiente cerrado es de 3.5 litros a una temperatura de 25oC y una atmósfera constante de presión. ¿
    12·1 answer
  • Which equation describes a reduction?
    10·2 answers
  • What data can be used to make a model of food?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!