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photoshop1234 [79]

3 years ago

9

. If you constructed graphs, what trends do they indicate in your data?

1 answer:

klasskru [66]3 years ago

7 0

Answer:

A linear pattern is a continuous decrease or increase in numbers over time. On a graph, this data appears as a straight line angled diagonally up or down (the angle may be steep or shallow). So the trend either can be upward or downward.

Explanation:

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Which level is made up of organisms that break down dead organisms?

mario62 [17]

Answer:

Explanation:

decomposers

4 0

3 years ago

Melting can be best described as a process in which molecules

Savatey [412]

Gain enough kinetic energy to get past each other. Ad you heat up a substance, the temperature increases as does the kinetic energy of the particles. At a point the temperature of the substance will stop increasing. The energy is now being used to increase the potential and move the particles further apart.

5 0

3 years ago

Read 2 more answers

What Element am I?

LiRa [457]

Answer:

Nitrogen

Explanation:

Nitrogen has 5 Valence Electrons.

And its atomic mass is also less than Bismuth.

There are other elements in the 5th row but this one has the lowest atomic mass compared to the others.

7 0

3 years ago

What is the mass of silver (107.87 g/mol) produced by the reaction of 3.00 moles of copper with 3.00 moles of silver nitrate?Cu

vladimir2022 [97]

Answer: 323.61 g of $Ag$ will be produced

Explanation:

The given balanced chemical reaction is :

$Cu+2AgNO_3\rightarrow Cu(NO_3)_2+2Ag$

According to stoichiometry :

2 moles of $AgNO_3$ require 1 mole of $Cu$

Thus 3.00 moles of $AgNO_3$ will require= $\frac{1}{2}\times 3.00=1.50moles$ of $Cu$

Thus $AgNO_3$ is the limiting reagent as it limits the formation of product.

As 2 moles of $AgNO_3$ give = 2 moles of $Ag$

Thus 3.00 moles of $AgNO_3$ give = $\frac{2}{2}\times 3.00=3.00moles$ of $Ag$

Mass of $Ag=moles\times {\text {Molar mass}}=3.00moles\times 107.87g/mol=323.61g$

Thus 323.61 g of $Ag$ will be produced from the given moles of both reactants.

3 0

3 years ago

If the density of a 45.0 cm3 block of wood is 0.65 g/ml what is the mass of the wood?

wlad13 [49]

Answer:

$\boxed {\tt mass=29.25 \ grams}$

Explanation:

The density formula is mass over volume.

$d=\frac{m}{v}$

Rearrange the formula for the mass, m. Multiply both sides of the formula by v.

$d*v=\frac{m}{v}*v$

$d*v=m$

Mass can be found by multiplying the density and volume. The density is 0.65 grams per milliliter and the volume is 45.0 cubic centimeters.

A cubic centimeter is equal to a milliliter.

Therefore, 45 cubic centimeters also equals 45 milliliters.

$d= 0.65 \ g/mL\\v= 45 \ mL$

Substitute the values into the formula.

$0.65 \ g/mL * 45 \ mL=m$

Multiply. Note the milliliters, or mL will cancel out.

$0.65 \ g * 45=m$

$29.25 \ g=m$

The mass of the wood is 29.25 grams.

5 0

3 years ago