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Feliz [49]
3 years ago
13

Click the picture please

Chemistry
1 answer:
romanna [79]3 years ago
6 0

Answer:

A chemical change can be indicated by a change in color, change in temperature (exothermic or endothermic), change in smell, formation of a precipitate, or the formation of gas bubbles.

Explanation:

this should work

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Is oil and water heterogeneous or homogeneous?<br>Please i need this answer for my online class​
d1i1m1o1n [39]

Answer:

They are examples of heterogeneous

4 0
3 years ago
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A substance with which bond type would have a high melting point?
DaniilM [7]

Answer:

The answer to your question is A. Ionic

Explanation:

There are 3 kinds of bonds in chemistry

a) Ionic bonds are the bonds between a metal and a nonmetal. Metals lost their electrons and nonmetals gain them. These bonds are the strongest so the melting and boiling points are the highest of all.

b) Covalent bonds are bonds between two nonmetals. The elements share electrons so these bonds are not as stronger as Ionic bonds, the melting and boiling points are high.

c) Metallic bonds are among metals and have high melting and boiling points.

7 0
3 years ago
URGENT HELP NEEDED
balu736 [363]
<span>the balanced equation for the reaction is as follows
2C</span>₄H₁₀ + 13O₂ ---> 8 CO₂ + 10H₂<span>O
 stoichiometry of C</span>₄H₁₀ to O₂ <span>is 2:13
stoichiometry applies to the molar ratio of reactants and products. Avagadros law states that volume of gas is directly proportional to number of moles of gas when pressure and temperature are constant.
 Therefore volume ratio of reactants is equal to molar ratio, volume ratio of C</span>₄H₁₀ to O₂<span> is 2:13
 2 L of </span>C₄H₁₀ reacts with 13 L of O₂<span> 
then 100 L of </span>C₄H₁₀<span> reacts with 13/2 x 100 = 650 L
 therefore 650 L of O</span>₂<span> are required </span>
7 0
3 years ago
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when you pur milk on your cereal in the morning are you making a heterogeneous mixture or honogeneous mixture
denis-greek [22]
A heterogeneous mixture because you can still tell apart the components in the mixture. You can differentiate between the milk and the cereal. 
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Which group on the Periodic Table reacts violently with water by igniting hydrogen gas?
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the answer would be Halogens

4 0
3 years ago
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