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Montano1993 [528]
3 years ago
15

What is 24.3 – 15.45 when accounting for sig fig rules?

Chemistry
1 answer:
Rasek [7]3 years ago
3 0

Answer:

8.85 because im smart

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The element with atomic number 35 belongs to​
dedylja [7]
Bromine is a chemical element with the symbol Br and atomic number 35.
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3 years ago
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The block in this illustration is floating in water, which has a density of 1.00 g/cm3 .What is a good estimate of the density o
miss Akunina [59]

Answer : The density of the block is estimated to be, 0.30g/cm^3.

Explanation :

Density of the water, \rho_w=1.0 g/cm^3

As we know that,

Buoyant force = \rho\times volume\times g

where,

g = gravitational acceleration

volume of the block = v

density of the block = \rho_o

Weight of the Block = Buoyant force exerted by water

\rho_o\times v\times g=\rho_w\times 30\%\text{ of volume of block}\times g

\rho_o\times v\times g=\rho_w\times 0.30v\times g

\rho_o\times v\times 9.8 m/s^2=1 g/cm^3\times 0.30v\times 9.8 m/s^2

\rho_o=0.30 g/cm^3

Thus, the density of the block is estimated to be, 0.30g/cm^3.

6 0
3 years ago
1.
oksian1 [2.3K]

Answer:

1. total

2. potential

3. zero

4. inversely

Explanation:

7 0
3 years ago
Give the names and symbols of three<br> elements that are gases at room temperature.
umka21 [38]

Helium gas: He

Hydrogen gas: H₂

Oxygen gas: O₂

Explanation:

Gases can exist at room temperature in monoatomic form or sometimes as polyatomic molecules.

A wide range of elements exists as gases at room temperature. Most of their molecules have covalent bonds between their atoms which ensures that they are stable.

Other examples are:

  • Argon gas     Ar
  • Neon gas      Ne
  • Bromine gas   Br₂
  • Nitrogen gas    N₂

Learn more:

Noble gas brainly.com/question/10874792

#learnwithBrainly

8 0
3 years ago
this is the scale used to describe how acidic or basic a solution is. this affects the enzymes within living systems is called
mart [117]
Answer is pH.
means Power of Hydrogen.
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4 years ago
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