3 years ago

You can speed up a chemical reaction by using a recyclable substance called areactant

2 answers:

8 0

The recyclable substance that speeds up chemical reactions is normally called catalyst or when it comes to reactions in living systems- an enzyme.

Vilka [71]3 years ago

5 0

The answer is True. You can speed up chemical reactions by using a recyclable substance called a reactant.

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The equation that is used to solve second law problems is # F= ma.

maw [93]

F= Force
M=Mass
A= acceleration
F=N
Mass= in grams or kilo grams (mostly kg)
A= m/s

8 0

3 years ago

Alicia can row 6 miles downstream in the same time it takes her to row 4 miles upstream. She rows downstream 3 miles/hour faster

m_a_m_a [10]

Let us assume the upstream rowing rate of Alicia = x
Let us assume the downstream rowing rate of Alicia = y
We already know that
Travelling time = Distance traveled/rowing rate
Then
6/(x + 3) = 4/x
6x = 4x + 12
6x - 4x = 12
2x = 12
x = 6
Then
Rowing rate of Alicia going upstream = 6 miles per hour
Rowing rate of Alicia going downstream = 9 miles per hour.

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3 years ago

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what is the potential energy of the ball when it gets to its maximum height just before falling back to the ground

love history [14]

Answer:

I will say that the the potential energy will be at its maximum.

Explanation:

potential energy deals with gravity and gravity deals with height, so when a object is in its maximum height it will have the maximum potential energy.

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2 years ago

A horizontal applied force of magnitude 25 N acts on a block sliding on a horizontal surface. The force of friction between the

kompoz [17]

' A ' and ' D ' are both correct statements.

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2 years ago

What is a suspension bridge- in your own words please and ty

PIT_PIT [208]

A bridge supported by vertical cables which then leads to more support from larger cables.

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3 years ago