3 years ago

How do I Balancing Chemical Equations

Chemistry

1 answer:

Black_prince [1.1K]3 years ago

6 0

Answer:

what?

Explanation:

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Which type of cell is larger

Karo-lina-s [1.5K]

Answer: eukaryotic cell

5 0

3 years ago

Aly's science class was looking at bacteria through a microscope. Aly's teacher said some bacteria can be as small as 0.00365 cm

olga nikolaevna [1]

Answer:

$0.00365\ cm=3.65\times 10^{-3}\ cm$

Explanation:

Aly's teacher said some bacteria can be as small as 0.00365 cm long.

In this problem, we need to write the length of the bacteria written in scientific notation. Any number can be written in the form of scientific notation as follows :

$N=a\times 10^b$

a is a real no and b is an integer

In the given number, there are two zeroes before 3. We need to shift the decimal after 3. It can be done as follows :

$0.00365\ cm=3.65\times 10^{-3}\ cm$

Hence, this is the required solution.

8 0

3 years ago

How many grams are in 0.220 mol of Ne?

yawa3891 [41]

Answer:

Mass = 4.44 g

Explanation:

Given data:

Number of moles of Ne = 0.220 mol

Mass in gram = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of Ne = 20.2 g/mol

by putting values,

0.220 mol = mass/ 20.2 g/mol

Mass = 0.220 mol × 20.2 g/mol

Mass = 4.44 g

5 0

3 years ago

you think that plants can get the building materials they need to grow from soil wateror air? Which ones? Explain your answer

natali 33 [55]

Answer:

Yes they can because of natural sunlight and rain

Explanation:

Easy

4 0

3 years ago

Silver has a density of 10.5 g/cm³, and gold has a density of 19.3 g/cm³. Which would have a greater mass, 5 cm³ of silver or 5

Vedmedyk [2.9K]

Gold have a greater mass

<h3>Further explanation </h3>

Density is a quantity derived from the mass and volume

Density is the ratio of mass per unit volume

The unit of density can be expressed in g/cm³ or kg/m³

Density formula:

$\large {\boxed {\bold {\rho ~ = ~ \frac {m} {V}}}}$

ρ = density

m = mass

v = volume

mass of Silver :

$\tt mass=\rho\times V\\\\mass=10.5\times 5=52.5~g$

mass of Gold :

$\tt mass=\rho\times V\\\\mass=19.3\times 5=96.5~g$

8 0

3 years ago