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shepuryov [24]
3 years ago
12

Balanced chemical equation:Copper( ii) oxide solid +dilute sulphuric acid​

Chemistry
1 answer:
Vlad1618 [11]3 years ago
3 0

Answer:

CuO + H2SO4 = CuSO4 + H2O  

Reaction type: double replacement

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What volume will 35.9 g of hydrogen gas (H2) occupy at STP?
Nataly [62]
35.9g x 1 mol/ 2.016g x 22.4 L/ 1 mol= 398.89 L
8 0
3 years ago
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Calculate the density of the four solutions. All of the solutions has the volume equal to 25 ml. Red solution has 25.0 g of mass
Scilla [17]

Answer:

              B. Green solution density is 1.06 g/ml and blue solution density is 1.20 g/ml

Explanation:

Density is given as,

                               D = Mass / Volume

Red Solution,

                               D = 25 g / 25 mL

                               D = 1 g/mL

Green Solution,

                               D = 26.5 g / 25 mL

                               D = 1.06 g/mL

Yellow Solution,

                               D = 28.2 g / 25 mL

                               D = 1.128 g/mL

Blue Solution,

                               D = 30 g / 25 mL

                               D = 1.20 g/mL

3 0
3 years ago
Which type of bond forms when two or more atoms share electrons?.
shepuryov [24]

Answer:

Covalent

Explanation:

Covalent is the sharing of electrons and Ionic is transferring of electrons.

7 0
2 years ago
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100 POINTS!!
elena55 [62]

Answer:

The correct matching of the air mass and the letters in the word bank are given as follows;

1. Warm and humid                   ↔       D

2. Extremely cold and dry        ↔       B

3. Cold and dry                         ↔       A

4. Cold and humid                    ↔       C

5. Warm and dry                       ↔        E

Where;

A Represents continental polar

B Represents Artic

C Represents Maritime Polar

D Represents Maritime Tropical

E Represents Continental Tropical

Explanation:

A. A continental polar is one that can be described as a cold and dry climate as the region is located at a further away from the oceanic water bodies that add humidity to the climate

B. The regions of the Artic and the Antarctic have very limited amount of precipitation every year because the air is very cold as well as dry

C. A polar climate is a cold climate region, while a maritime climate is humid.

Therefore, the maritime polar climate combines both cold and humid conditions

D. A warm and humid region has high rainfall and humidity, as such the maritime climate which are humid and the tropical climate, which are warm, combine to give a warm and humid climate

E. The continental tropical climate can be described as warm and dry, compared to the continental water bodies, due to the location being distant from and therefore, the absence of high moisture containing wind that comes from the oceans.

7 0
3 years ago
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What kind of group 1 atoms are the most reactive? a. Small atoms c. Atoms with the most electrons in the valence level b. Large
garri49 [273]

Answer:

large atoms

Explanation:

its kinda obvious

4 0
3 years ago
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