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yaroslaw [1]
3 years ago
11

HCl + CaCO3 CaCl2 + CO2 + H2O balance

Chemistry
1 answer:
geniusboy [140]3 years ago
8 0

Answer:

HUH

Explanation:

what class are you in?

You might be interested in
Classify the items based on whether they are or are not matter.
Phantasy [73]

Answer:

Matter:

toothpaste

gasoline

bacteria

cell

Not matter:

happiness

sound

Explanation:

Matter is something that has mass and volume. Happiness is just a feeling, it doesn't exist in 3d world. Sound is a wave or just the movement of matter (particles of matter). Others have masses and volumes.

6 0
3 years ago
The thin outer layer of Earth, called the crust, contains only 0.50 percent of Earth's total mass and yet is the source of almos
Rzqust [24]

Answer:

The mass of silicon in kilograms in Earth's crust is7.2729\times 10^{21} kg.

Explanation:

Mass of Earth =5.9\times 10^{21} tons

(1 ton= 2000 lb)

(1 lb =453.6 g)

1 ton = 2000 × 453.6 g =907,200 g

Mass of Earth =5.9\times 10^{21}\times 907,200 g=5.3524\times 10^{27} g

Percentage of earth crust = 0.50%

Mass of earth crust = M

0.50\%=\frac{M}{5.3524\times 10^{27}}\times 100

M=2.6762\times 10^{25} g

Percentage of the silicon in Earth's crust = 27.2 %

Mass of silicon in in Earth's crust = m

Si\%=\frac{m}{M}\times 100

27.2\%=\frac{m}{2.6762\times 10^{25} g}\times 100

m = 7.2792\times 10^{24} g=7.2729\times 10^{21} kg

1000 g = 1 kg

The mass of silicon in kilograms in Earth's crust is7.2729\times 10^{21} kg.

7 0
3 years ago
Calculate the molarity of each of the following solutions. Use the periodic table if necessary.
-Dominant- [34]

Answer: 2.8

Explanation: just took the quiz

8 0
2 years ago
Read 2 more answers
You’re sitting at a car race and the cars sound differently when they approach as opposed to when they are moving away. Why migh
bulgar [2K]

Answer:

I have no clue this qestion is kinda stumping but it a really good question it got me thinking but i don't know if there is a right answer

Explanation:

I don't know

5 0
2 years ago
Convert 25 gigaseconds into centiseconds​
dangina [55]

25 gigaseconds is equal to 2,500,000,000,000 centiseconds

6 0
3 years ago
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