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Ivahew [28]
2 years ago
12

To make a softball bat, a block of wood is carefully crafted into a shape that will allow a

Chemistry
1 answer:
Iteru [2.4K]2 years ago
4 0
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What type of reaction is: CaO + H2O -> Ca(OH)2? A. Combustion B. Synthesis C. Double Replacement D. Decomposition
12345 [234]

Answer:

The reaction is B. Synthesis

Explanation:

In the case of this reaction, it corresponds to a synthesis where 2 compounds (calcium oxide and water) are combined to form a new one (calcium hydroxide).

8 0
3 years ago
Will an empty balloon have precisely the same apparent weight on a scale as a balloon filled with air? Explain.
hram777 [196]
The notion <span>an empty balloon have precisely the same apparent weight on a scale as a balloon filled with air depends on the diameter of the balloon. The weight of the balloon  filled with air is equal to the mass of the balloon and the mass of the air inside. The mass of air inside is equal to the density of air multiplied by the volume of the balloon. If the balloon is large, then the two masses are equal whereas if not, the mass of air inside the inflation is neglible</span>
4 0
3 years ago
Read 2 more answers
The element oxegyn, represented by 01, is classified as​
Mashutka [201]

Answer:

It is classified as a pure substance

Explanation:

Oxygen is a gas present in the atmosphere in the pure elemental form.

7 0
3 years ago
A 17.4 L sample of oxygen gas (O2) was collected at a temperature of 23.0°C and a pressure of 2.18 atmospheres. What volume woul
timofeeve [1]

The volume of the gas at STP = 35.01 L

<h3>Further explanation</h3>

Conditions at T 0 ° C and P 1 atm are stated by STP (Standard Temperature and Pressure).

In general, the gas equation can be written  

\large {\boxed {\bold {PV = nRT}}}

where  

P = pressure, atm  

V = volume, liter  

n = number of moles  

R = gas constant = 0.08206 L.atm / mol K  

T = temperature, Kelvin  

V=17.4 L

T = 23 + 273 = 296 K

P = 2.18 atm

\tt mol=n=\dfrac{PV}{RT}\\\\n=\dfrac{2.18\times 17.4}{0.082\times 296}\\\\n=1.563

The volume of the gas occupy at STP :

\tt 1.563\times 22.4=35.01~L

6 0
3 years ago
A chemist adds two substances together in a beaker. When he combines the substances, a solid substance is formed. He filters the
aliya0001 [1]

Answer:

collecting relevant data

Explanation:

got this answer from another website ;)

7 0
3 years ago
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