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Dovator [93]
4 years ago
7

On what principle does calorimeter depend?

Chemistry
1 answer:
Bond [772]4 years ago
7 0

b) law of conservation of energy

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iron has a density of 7.86 g cm3 could a block of metal with a mass of 18.2 and a volume of 2.56 cm^3 be iron?
satela [25.4K]

The density of the block will be "7.11 gm/cm³". A further explanation is provided below.

Given values are:

Density of iron,

  • 7.86 \ g/cm^3

Mass of block of metal,

  • 18.2 \ gm

Volume of block,

  • 2.56 \ cm^3

By using the formula,

→ Density = \frac{Mass}{Volume}

then,

→ The density of block will be:

= \frac{Mass}{Volume}

= \frac{18.2}{2.56}

= 7.11 \ gm/cm^3

Learn more:

brainly.com/question/10804879

7 0
2 years ago
How much do 3.01 x 1023 atoms of Helium weigh?
liraira [26]

Answer:

4.0 grams

Explanation:

I hope that helped!!

4 0
2 years ago
HELP! help will give brainiest
ivolga24 [154]
I believe it’s Fatigue
6 0
3 years ago
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Which of the following processes would you predict to have a positive value for ΔSºreaction ?
Tomtit [17]
C.

This is because the number of products is greater than the number of reactants. 
5 0
3 years ago
Help!!<br> Classify each diagram as an element a compound or mixture
Black_prince [1.1K]

Answer:

1. Mixture

2. Compound

3. Compound

4. Element

Explanation:

Number 1 shows two completely different types of compounds in the same space, so it is a mixture.

Numbers 2 and 3 are compounds because there aren't different types compounds as in Number 1, but the same compound repeated. 2 is a compound because while all of the circles are the same element, they are connected. O2 for example, oxygen, is a compound.

Number 4, finally, is all of the same substance, non-connected, so it shows an element.

Brainliest, please :) (Trying to become a genius so that I can continue helping more people)

8 0
2 years ago
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