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rodikova [14]
2 years ago
8

Gawk gawk? smeat muh meat​

Chemistry
2 answers:
quester [9]2 years ago
4 0

Answer:

bruh why?

Explanation:

omeli [17]2 years ago
3 0

gotta get that glockglock10000

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What is the volume of a sample of liquid mercury that has a mass of 53.8 g, given that the density of mercury is 13.6 g/mL? Answ
Liula [17]

The formula for density is:

density=\frac{mass}{volume}

We know the density for mercury is 13.6 g/mL, and we know the mass of the sample is 53.8 g. Thus, we can plug these numbers into our equation and solve for volume.

The volume is unknown, so we can simply denote it as "x"

13.6 g/mL=\frac{53.8 g}{x}

multiply both sides by x

(x)(13.6 g/mL)=\frac{53.8 g}{x}(x)

The x's cancel out on the right side and you are left with

(x)(13.6 g/mL)=53.8 g

From here, simply divide both sides of the equation by 13.6 g/mL and solve for x.

\frac{(x)13.6 g/mL}{13.6 g/mL}=\frac{53.8 g}{13.6 g/mL}

x=3.955882353 mL

Round to 3 significant figures, and your final answer is:

x=3.96 mL

The volume of the sample of mercury was 3.96 mL.


6 0
3 years ago
Which statement best describes why carbon can form a wide variety of organic compounds?
marishachu [46]
Carbon can form a wide variety of organic compounds because:

Each carbon atom covalently bonds with toms of carbon, hydrogen oxygen, and nitrogen

A carbon atom can have 4 single valence electrons around it. This allows it to form covalent bonds with many different atoms.
7 0
3 years ago
Read 2 more answers
Suppose that a certain fortunate person has a net worth of $79.0 billion ($7.90×1010). If her stock has a good year and gains $3
mario62 [17]
A net worth: $79.0 billion.
Value of stock : $3.20 billion.
New net worth:
$79.0 + $3.20 = $82.20 billion = $82.20 * 10^9 = $8.20 * 10^10
7 0
3 years ago
Consider the following isotopic symbol: 137Ba2+
aliya0001 [1]

Answer:

a) 56 protons

b) 54 electrons

c) 81 neutrons

d) The sum of protons and neutrons is shown. The number of protons is always the same. So we can calculate the number of neutrons ( and also the isotopes)

e)137Ba (with 56 protons and 81 neutrons)

f) atomic mass is 136.9 u ; the mass number is the sum of protons and neutrons and is 137

Explanation:

Step 1: Data given

137 Ba2+ is an isotope of barium. The atomic number of barium( and its isotopes) is 56. This shows the number of protons.

For a neutral atom, the number of protons is equal to the number of electrons.

The different isotopes of an element have the same number of protons but a different number of neutrons.

137Ba2+ has 56 protons (this is the same as the atomic number)

137Ba2+ has 54 electrons ( since it's Ba2+, this means it has 2 electrons less than protons, that's why it's charged +2)

137Ba2+ has 81 neutrons ( 137 - 56 = 81)

In the symbol, the atomic number is not shown. The sum of the protons and neutrons is shown. (Since the number of protons is the same for every isotope, we can calculate the number of neutrons that way. By knowing the neutrons, we also know the isotope.

This isotope is 137Ba

Atomic mass is also known as atomic weight. The atomic mass is the weighted average mass of an atom of an element based on the relative natural abundance of that element's isotopes.

The atomic mass of 137Ba2+ is 136.9 u

The mass number is a count of the total number of protons and neutrons in an atom's nucleus.

The mass number of 137Ba2+ is 137

3 0
3 years ago
Mantle material rises in convection currents because heated materials becomes more dense
sergey [27]
Heated mater rises and cold mater sinks
3 0
3 years ago
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