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3 years ago

The amount of matter in an object is called

Chemistry

1 answer:

marta [7]3 years ago

7 0

Answer: Matter

Explanation:

Matter is anything that has volume and/or mass.

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Strong bases are

RSB [31]

D strong electrolytes

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3 years ago

Find the volume in m3 of 52.6 lbm of iron:

balandron [24]

<u>Answer:</u> The volume of iron is $3.031\times 10^{-3}m^3$

<u>Explanation:</u>

To calculate volume of a substance, we use the equation:

$\text{Density of a substance}=\frac{\text{Mass of a substance}}{\text{Volume of a substance}}$

We are given:

Mass of iron = 52.6 lbm = 23.86 kg (Conversion factor: 1 kg = 2.205 lbm)

Density of iron = $7873kg/m^3$

Putting values in above equation, we get:

$7873kg/m^3=\frac{23.86kg}{\text{Volume of iron}}\\\\\text{Volume of iron}=3.031\times 10^{-3}m^3$

Hence, the volume of iron is $3.031\times 10^{-3}m^3$

8 0

2 years ago

Tresset [83]

Answer:

A sample of water boils and releases gas.

Explanation:

Physical change is a change where no any chemical reaction takes place only the chemical composition of matter changes. It is a reversible process .

Burning of newspaper, rusting of iron, plant changes carbon dioxide and water into sugar (photosynthesis) are chemical reaction and irreversible process.

6 0

3 years ago

Read 2 more answers

What information did the scientists miss in 1948 and 1966 that caused them to

Debora [2.8K]

Answer:

The information from Mariner 6 and Mariner 7

Explanation:

Because they had not been launched yet

6 0

3 years ago

270kJ are needed to keep a 75 watt light bulb burning for 1 hour. How many kilocalories are needed to burn this light bulb for 3

elena-s [515]

Answer:

For 1 hour 75w light bulb requires 270 kj for burning

for 3 hours 75 w light bulb requires 270*3 = 810kj for burning

Explanation:

8 0

3 years ago