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zysi [14]
2 years ago
7

Is ice cream matter or nonmatter

Chemistry
2 answers:
Nuetrik [128]2 years ago
7 0
Ice cream is matter

Fear is not matter

Laptop is matter

Noise is not matter

Wood is matter
fgiga [73]2 years ago
4 0

Answer:

ice cream is matter

fear is non matter (it's a feeling not a  physical object)

laptop is matter

noise is non matter

wood is matter

hope this helps :)

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C3H8 + xO2 &gt; 3CO2 + yH2O<br> which value of x and y balance the equations
Gelneren [198K]

Answer:

x = 5 and y =4

Explanation:

An alkane is a hydrocarbon of general molecular formula CnH2n+2. The general formula for balancing the combustion equation of any alkane is;

CnH2n+2 + 3n+1/2O2 ------> nCO2 + (n+1) H2O

Where n is the number of carbon atoms in the alkane.

In C3H8 , n=3 so;

C3H2(3)+2 + 3(3)+1/2O2 ------> 3CO2 + (3+1) H2O

Then;

C3H8 + 5O2  ------> 3CO2 + 4H2O

Therefore;

x = 5 and y =4

8 0
2 years ago
Please answer quick
anastassius [24]

Answer:

It will be D

Explanation:

5 0
2 years ago
how many moles of an ideal gas would occupy a 25.0 liter container when the temperature is 295 K and the pressure is 0.850 atm?
BlackZzzverrR [31]

Answer:

Required number of moles of ideal gas is 0.877 moles.

Explanation:

Pressure (P) = 0.850 atm

Temperature (T) = 295 K

Volume (V) = 25 ltr

Universal gas constant (R) = 0.0821

no of moles (n) = ?

we have the ideal gas equation as:

                           PV= nRT

                or, 0.850× 25 = n × 0.0821 × 295

                or, n = 0.877 moles

Hence the required number of moles of an ideal gas is 0.877 moles.

8 0
3 years ago
Define density of a substance.
ozzi

Answer:

density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in metre-kilogram-second or SI units).

Explanation:

4 0
2 years ago
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Why are scientists worried that climate change will cause these toxic algae blooms to become more frequent?
ipn [44]

Answer: Eutrophication is the enhancement of the growth of algae in the water body.

Explanation:

The scientists are worried for the climate change as if the climate changed to prolonged rainy then the frequent raining can remove toxic chemicals from the agricultural sites, landfills, industries, and from other locations and deposit them to the water body (river, lakes, ponds, and others). The deposition of the salts of nitrogen, phosphorus, and sulfur promotes the growth of algae in the water body. This leads to reduction in the concentration of oxygen in the water body. This is called eutrophication. The lack of oxygen can lead to mortality of aquatic animals.

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2 years ago
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