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3 years ago

A. How many hydrogen atoms are on the Reactants side?

Chemistry

1 answer:

patriot [66]3 years ago

8 0

The reactants side are the first ones in a chemical reaction.

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1) How much energy would be required to melt 15.0 g of ice at 0°C?

DerKrebs [107]

Answer:

5010J

Explanation:

The following data were obtained from the question:

Mass (m) = 15g

Heat of fusion (ΔHf) = 334J/g

Heat required (Q) =..?

The heat energy required to melt the ice can be obtained as follow:

Q = m·ΔHf

Q = 15 x 334

Q = 5010J

Therefore, the heat energy required to melt the ice is 5010J.

8 0

3 years ago

What does control group mean

fiasKO [112]

A control group is the group in an experiment that does not receive any sort of change, to then be compared to the other treated objects at the end of the study.

7 0

3 years ago

Look at the following equation.

Ronch [10]

Answer:

Explanation:

_N2 + _H2 - _NH3

LHS RHS

N=2×1=2 N=1×2=2

H=2×3=6 H=3×2=6

1,3,2

4 0

3 years ago

Which microscope came out first

victus00 [196]

Answer:

compound microscope

Explanation:

6 0

4 years ago

What volume (mL) of concentrated solution of magnesium chloride (9.00 M) must be diluted to 350. mL to make a 2.75 M solution of

zalisa [80]

$❤Answer$

Volume of 106.9 mL from the concentrated solution should be taken and diluted to 350 mL.

⠀

Main I'd On Indian Brainly Is - HeartCrush

$⚡ Explantion$

We can use the formula. 

c1v1 =c2v2

Where c1 is the concentration and v1 is volume of the concentrated solution. 

c2 is the concentration

and v2 is the volume of the diluted solution to be prepared

9.00 M x V1 = 2.75 M x 350 mL

V1 = 106.9 mL

Volume of 106.9 mL from the concentrated solution should be taken and diluted to 350 mL.

3 0

3 years ago