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3 years ago

What is the density of mercury.

Chemistry

1 answer:

babymother [125]3 years ago

6 0

The density of mercury is 5.43 g/cm³.

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Mass is 5 grams and the volume is 4.5 grams what is the density

STatiana [176]

Density = Mass/Volume

d= 5 / 4.5

8 0

3 years ago

PLEASE HELP ASAP I'M SO STRESSED

bazaltina [42]

Answer:

160.3g

Explanation:

We know the equation:

No of moles = mass ÷ Mass of element

We need to find the mass, so make mass the subject of the formula.

Mass = No. of moles × mass of element

Mass = 5 × 32.06

Mass = 160.3g

4 0

2 years ago

How many moles of ammonla are produced by 2.8 mol of hydrogen. ANH

yan [13]

Answer:

3 i think

Explanation:

6 0

2 years ago

A solid precipitate is formed from the reaction of lead nitrate and sodium chromate. What would be the best method to separate t

Sliva [168]

The appropriate response is filtration. Filtration is any of different mechanical, physical or organic operations that different solids from liquids by including a medium through which just the liquid can pass. The liquid that goes through is known as the filtrate

8 0

3 years ago

Read 2 more answers

Mature elephants consume an average of 600 pounds of food per day. If an elephant

MAXImum [283]

Answer:

$\large \boxed{\text{4 600 000 kg or 4600 Mg}}$

Explanation:

1. Calculate the adult life

If the elephant is an adult from its 10th birthday until the day before its 56th birthday, its

Adult life = 55 - 10 + 1 = 46 yr

2. Convert years to days

$\text{Adult life} = \text{46 yr} \times \dfrac{\text{365.25 da}}{\text{1 yr}} = \text{16 800 da}$

3. Convert days to pounds of feed

$\text{Feed} = \text{16 800 da} \times \dfrac{\text{600 lb}}{\text{1 da}} = 1.01 \times 10^{7} \text{ lb}$

4. Convert pounds to kilograms and megagrams

$\text{Feed} =1.01 \times 10^{7} \text{ lb} \times \dfrac{\text{1 kg}}{\text{2.20 lb}} =\textbf{4 600 000 kg} = \textbf{4600 Mg}\\\\\text{The elephant will eat $\large \boxed{\textbf{4 600 000 kg or 4600 Mg}}$ of food.}$

Note: The answer can have only two significant figures because that is all you gave for age of the elephant.

5 0

3 years ago