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4 years ago

Melted rock can ooze out from below earths surface through a crack in the crust called a(n)?

Chemistry

1 answer:

Katen [24]4 years ago

5 0

Melted rock can ooze out from below the earth's surface through a crack called a fault.

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Can anyone help me ASAP

harkovskaia [24]

Answer: Balance, multiply, find ratio

Explanation:

Balance the equation to be able to multiply correctly and accurately, multiply, and this will give you the molar ratio

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3 years ago

What is the process in which the work of scientists is evaluated by other researchers

Mashutka [201]

The answer is peer review

8 0

3 years ago

Read 2 more answers

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

4) Calculate the percentage by<br> mass of oxygen in Pb(NO3)2<br> A) 193<br> B20<br> 145

Ierofanga [76]

Answer:

im getting 331.23

Explanation:

Element Number Mass Percet Composition

O 6 16.00 28.9828819853274

N 2 14.01 8.45937867946744

Pb 1 207.21 62.5577393352051

5 0

3 years ago

If 21.4 grams of hydrogen reacts completely with 120.3 grams of oxyge to form hydrogen peroxide, what percent by mass of hydroge

gulaghasi [49]

Answer:

In its pure form, it is a very pale blue liquid, slightly more viscous than water. Hydrogen peroxide is the simplest peroxide (a compound with an oxygen–oxygen single bond).

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3 years ago