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2 years ago

State two characteristics of matter demonstrated by

Chemistry

1 answer:

Natasha2012 [34]2 years ago

4 0

1.matter is made up of small particles

2.particles of matter are in constant random motion

Explanation:

1.Particles eg of salt can be crashed into smaller particles 2.When you sprinkle pollen grains on water in a beaker and observe using a hand lens U'll see they are moving randomly

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A straight piece of wire is coiled to form a spring physical or chemical

STALIN [3.7K]

Physical. you didn't burn it or create a chemical reaction

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2 years ago

Emerald Robinson described what chemistry is. What is it not? Select one: O a. The study of matter, properties of matter, and ho

Alja [10]

Answer:

The central science

Explanation:

Pls mark the brainliest

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2 years ago

If the density of a 45.0 cm3 block of wood is 0.65 g/ml what is the mass of the wood?

wlad13 [49]

Answer:

$\boxed {\tt mass=29.25 \ grams}$

Explanation:

The density formula is mass over volume.

$d=\frac{m}{v}$

Rearrange the formula for the mass, m. Multiply both sides of the formula by v.

$d*v=\frac{m}{v}*v$

$d*v=m$

Mass can be found by multiplying the density and volume. The density is 0.65 grams per milliliter and the volume is 45.0 cubic centimeters.

A cubic centimeter is equal to a milliliter.

Therefore, 45 cubic centimeters also equals 45 milliliters.

$d= 0.65 \ g/mL\\v= 45 \ mL$

Substitute the values into the formula.

$0.65 \ g/mL * 45 \ mL=m$

Multiply. Note the milliliters, or mL will cancel out.

$0.65 \ g * 45=m$

$29.25 \ g=m$

The mass of the wood is 29.25 grams.

5 0

2 years ago

Agl+Fe2(CO3)3=Fel3+Ag2CO3

Trava [24]

If you're looking for the balances equation to this the answer is

18 Ag + 3 Fe2(CO3)3 = 2 Fe3 + 9 Ag2CO3

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2 years ago

Chemistry Questions<br>5) What is matter? Mention the characteristic of particles of matter.

Virty [35]

Matter is everything we see and cant see and sometimes touch. Some characteristic are: solid, liquid, gas and plasma. I hope this helps :)

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2 years ago