CHEMISTRY HIGH SCHOOL

What is the balanced equation of Ca3(PO4)2+ SiO+ C---> P+ CaSiO+ CO

Answers

Answer 1
Answer: Balanced chemical equation:

1 Ca3(PO4)2 + 3 SiO2 + 11 C = 2 P + 3 CaSiO + 11 CO

hope this helps!.

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Compounds that do not conduct an electric current in either aqueous solution or when molten are referred to as _____.a. electrolyte b. nonelectrolyte c. not listed d. ionic
If a shell can hold a maximum of 32 electrons, what is the value of n?
A gas of 190 mL at a pressure of 74 atm can be expected to change its pressure when its volume changes to 30.0 mL. Express its new pressure in units of atmospheres.
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What is a chemical change

Which is true about the dissolving process in water? Nonpolar solutes dissolve easily in water. Solute molecules surround water molecules. Molecules or ions of a solute spread throughout the water molecules. Water molecules are repelled by solute ions at the surface of the solute.

Answers

The simple principle for solute dissolution in a particular solvent is "like dissolves like". In the case of water, a solute will dissolve if it is polar. This is because water is a polar solvent. A polar substance is one which has particles that have a net charge on them. This net charge produces forces of attraction. When a polar solute is added to water, the water molecules are attracted to the solute particles and they attach to them. After attaching to the water molecules, the solute particles are dispersed throughout the water. Therefore, the answer is molecules or ions of a solute spread throughout the water molecules.

Answer:

C. Molecules or ions of a solute spread throughout the water molecules.

Explanation:

C. Molecules or ions of a solute spread throughout the water molecules.

Explain why a beryllium atom is electrically neutral

Answers

The positive energy protons and negative electrons balance out.

Based on its location on the periodic table, which metal is likely to be less reactive than rubidium and more reactive than calcium?potassium (K)

cesium (Cs)

magnesium (Mg)

titanium (Ti)

Answers

Answer: Potassium is the element which is less reactive than rubidium and more reactive than Calcium.

Explanation: Reactivity of an metal is defined as the tendency to loose electrons easily. In a periodic table, the reactivity increases down the group as size of the metal increases. The reactivity decreases across a period as the size of the metal decreases.

Rubidium lies in group 1, which has elements in the series: H, Li, Na, K, Rb, Cs and Fr.

And Calcium lies in period 4 which has elements in the series: K, Ca, (1st transition series), Ga, Ge, As, Se, Br and Kr.

So, the element to have reactivity more than rubidium and less than Calcium must be Potassium (K).

Answer:

A is the correct answer on edge

Explanation:

A)potassium (K)

When the pressure that a gas exertson a sealed container changes
from atm to 1.80 atm, the
temperature changes from 86.0°C to
30.0°C.

Answers

Answer:

The pressure changes from 2.13 atm to 1.80 atm.

Explanation:

Given data:

Initial pressure = ?

Final pressure = 1.80 atm

Initial temperature = 86.0°C (86.0 + 273 = 359 K)

Final temperature = 30.0°C (30+273 =303 K)

Solution:

According to Gay-Lussac Law,

The pressure of given amount of a gas is directly proportional to its temperature at constant volume and number of moles.

Mathematical relationship:

P₁/T₁ = P₂/T₂

Now we will put the values in formula:

P₁ = P₂T₁ /T₂

P₁ = 1.80 atm × 359 K / 303 K

P₁ = 646.2 atm. K /303 K

P₁ = 2.13 atm

The pressure changes from 2.13 atm to 1.80 atm.

Answer:

2.13

Explanation:

The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of 58.1 grams in one mole. How many carbon atoms are in 1.50 g of butane?

Answers

Doesnt the number of carbon atoms stay the same.
Though the weight of carbon in 1.5g is 1.24g.

This is because the RAM of C4 is 48.

The RFM of C4H10 is 58. Therefore, 48/58 is carbon in butane.

48/58 x 1.5 = 1.24g

Which of the following equations has correct formulas and also is a balanced equation?a. CaCO3 - > CaO + CO3
b. 3KCl + HNO3 - > 3HCl + KNO3
c. 2Be + O2 - > 2BeO
d. Mg + O2 - > MgO2

Answers

The equations that has the correct formulas and also is a balanced equation are:
2Be + O2 - > 2BeO
Mg + O2 - > MgO2
The answer are letters C and D. The rest of teh choices are not balanced chemical equations.

this question two answers which is C and D they are balanced to the right tab.
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