1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Sav [38]
3 years ago
10

Help! Help! Help! Help! ​

Chemistry
1 answer:
nalin [4]3 years ago
3 0

Answer:

H20

water (the chemical symbol, as used in non-specific contacts. 8 equals hydrogen equals oxygen and two elements in hydrogen therefore is known as H2O .

H202

hydrogen peroxide equals hydrogen peroxide is the chemical compound with formula h202. And it's your form, it is very pale blue liquid, slightly more vicious than water. It is used as an oxidizer, bleaching agent, and antiseptic .

Co=

carbon monoxide, carbon monoxide is colorless, odorless, and tasteless flammable gas that is slightly less dense than air. Formula equals Co

You might be interested in
Greg and Shawn are studying for a physical science test. Greg thinks that the kinetic energy of an object depends on the height
Ludmilka [50]
It should be mass and speed so they are both incorrect because the height doesn’t mean much, but what matters is how heavy the object is, and how fast it’s going to go.
4 0
3 years ago
This is a science question. What is the acceleration of the dragster?
Katena32 [7]
The acceleration is -8.89 m/s
8 0
3 years ago
Read 2 more answers
In an AP, sum of four consecutive terms is 28 and their sum of their squares is 276. Find the four numbers.​
Aleks [24]
Four Consecutive terms are written as a-3, a-1, a+1,a+3. So

Sum of Terms : 4a=28
a=7

So the terms are 4,6,8,10

Verification : 4^2+6^2+8^2+10^2
= 216
4 0
3 years ago
What is the mass of the hydrogen atoms in 1 mole of water
Katen [24]

<u>Answer:</u>

2.0158 grams

<u>Explantion:</u>

We are to find the mass of the hydrogen atoms in 1 mole of water.

We know that the formula of water is: H_2O

We can see, from the above mentioned formula, that water has 2 hydrpgen atoms.

From the periodic table, we get to know that Hydrogen has an atomic mass of 1.00794 grams.

As there are 2 atoms of hydrogen in water so 2 \times 1.00794 = 2.0158 grams is the answer

3 0
4 years ago
Read 2 more answers
Hexane is a common laboratory solvent and a component of petrol. Its combustion reaction is as follows: 2 C6H14 (9) + 19 02(9) +
Flauer [41]

Answer : The heat released by the combustion of 1.121 mol of hexane (kJ) is, 1.01\times 10^3

Explanation :

The given balanced reaction is,

2C_6H_{14}(g)+19O_2(g)\rightarrow 12CO_2(g)+14H_2O(l)

Given:

Moles of hexane = 0.121 mol

\Delta H = -8326 kJ/mol

The negative sign indicate that the reaction exothermic or amount of heat released.

As, 1 mole of hexane released heat = 8326 kJ

So, 0.121 mole of hexane released heat = 8326 × 0.121 = 1007.446 ≈ 1.01\times 10^3kJ

Therefore, the heat released by the combustion of 1.121 mol of hexane is 1.01\times 10^3kJ.

4 0
4 years ago
Other questions:
  • Which substance cannot be decomposed by a chemical change?
    15·1 answer
  • Which of the following is the balanced form of the equation CH4 + O2 → CO2 + H2O?
    6·2 answers
  • How do you read a data table?
    7·1 answer
  • The work function of an element is the energy required to remove an electron from the surface of the solid. The work function fo
    9·1 answer
  • What do most logging methods have in common
    14·1 answer
  • Which of the following best defines molar mass?
    7·1 answer
  • Identify one factor represented in the diagram that is used to classify the ten types of clouds
    11·1 answer
  • What happens if you try to move the atoms very close to each other?
    12·1 answer
  • Which of these demonstrates one of Newton's Laws of Motion? A seat belt holds you in your seat kicking a bowling ball will affec
    8·1 answer
  • Who is credited with developing the periodic table
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!