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Ne4ueva [31]
3 years ago
15

Two students make a model of a tree house they want to build. the scale is 1:42 in the scale model the tree house door is 3 cm t

all
How tall should the real house door be?
Chemistry
1 answer:
Flura [38]3 years ago
4 0

Answer:126

Explanation:

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Is gin a heterogeneous or homogeneous mixture?
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Gin is uniform throughout and is a homogenous mixture. If it wasn't you would have awful lumps in your drink :). Hope I helped!
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3 years ago
Briefly discuss the 3 most important properties of metals
Elan Coil [88]

Answer: Luster: Metals are shiny when cut, scratched, or polished.

Malleability: Metals are strong but malleable, which means that they can be easily bent or shaped.

Conductivity: Metals are excellent conductors of electricity and heat.

Explanation: Hope this helped!

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2 years ago
Chemical reaction to form products this chemical equation represents one such reaction the coefficient for one of the reactants
Dmitriy789 [7]

Answer:

In a chemical equation, chemicals that react are the reactants, while chemicals that are produced are the products/by products. Both sides of the equation must be balanced.

\

Explanation

When writing a chemical equation, reactants reacts to produce products. For example in the equation for formation of water, hydrogen combines with oxygen as 2H₂ +O₂→2H₂O where the first part before the arrow represent the reactants and the next part after the arrow are the products. Reactants are on the left where as products are on the right.Coefficient 2, in this cases is used for balancing the equation

4 0
3 years ago
The boiling point of another member of this homologous series was found to be 309 k. What is the likely molecular formula for th
Sati [7]

Answer:

C5H12

Explanation:

In organic chemistry the boiling point of 309 k is of fifth member of alkane series which Pentane whose molecular mass is 72 g/mol.  Thus, we can say that the  molecular formula of the compound which has boiling point 309 K is C5H12.

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Which of these statements best describes the relationship between elements, compounds, and pure substances?
olchik [2.2K]

pure substances can be divided into two groups; elements and compounds

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