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RideAnS [48]
2 years ago
9

A student mixed two chemicals to allow them to

Chemistry
1 answer:
Westkost [7]2 years ago
4 0

Answer:

B .it is an exothermic reaction

Explanation:

i need brainleyest

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Is iron oxide an insulator or conductor?
balu736 [363]

Answer:

It's a conductor

Explanation:

3 0
3 years ago
Compared to the nucleus 5626fe, what is the density of the nucleus 112 48cd?
tia_tia [17]

For a comparison of the nucleus 5626fe, the density of the nucleus 112 48cd is mathematically given as the same.

n(Cd) / n(Fe)=1

<h3>What is the density of the nucleus 112 48cd?</h3>

Generally, the equation for the density  is mathematically given as

d=\frac{A}{4/3}\piR^3

Therefore

n(Cd) / n(Fe) = [A (Cd) / (A Fe) ] * [ R (Fe) / R (Cd)]^3

n(Cd) / n(Fe)= (112 / 56 ) * (1/1.26)3

n(Cd) / n(Fe)=1

In conclusion, The ratio of n(Cd) = n(Fe) is 1, hence same

Read more about density

brainly.com/question/14010194

8 0
2 years ago
If you burn 29.4 g of hydrogen and produce 263 g of water, how much oxygen reacted?
vovikov84 [41]

The reaction between hydrogen and oxygen to form water is given as:

H_2 + O_2 \rightarrow H_2O

The balanced reaction is:

2H_2 + O_2 \rightarrow 2H_2O

According to the balanced reaction,

4 g of hydrogen (4\times 1) reacts with 32 g of oxygen (2\times 16).

So, oxygen reacted with 29.4 g of hydrogen is:

\frac{29.4\times 32}{4} = 235.2 g

Hence, the mass of oxygen that is reacted with 29.4 g of hydrogen is 235.2 g.

7 0
3 years ago
Match the following vocabulary words.
Arada [10]

Answer:

4 line graph

5 pictograph

10 vertical axis

2 bar graph

8 axis

3 pie chart

6 dependent variable

9 horizontal axis

1 graph

3 independent variable

Explanation:

Can I please have brainliest ;)

5 0
3 years ago
How do the grasshoppers jump so far?
rodikova [14]

Answer:

because hopz

Explanation:

7 0
2 years ago
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