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jeka57 [31]
3 years ago
10

Please help me out if your good at science:)ill mark brainliest if correct

Chemistry
1 answer:
ycow [4]3 years ago
6 0
D. Helps diagnose health problems
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3 years ago
2.Which term best describes the processes that change rocks and mountains on Earth’s surface over time?
ArbitrLikvidat [17]

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2 years ago
If 1.8 L of water is added to 2.5L of a 7.0 Molarity
liq [111]

Answer:

4.1 mol·L⁻¹

Explanation:

You are diluting the solution with water, so you can use the dilution formula

c₁V₁ = c₂V₂     Divide each side by V₂

 c₂ = c₁ × V₁/V₂

Data:

c₁ = 7.0 mol·L⁻¹; V₁ = 2.5 L

Water added = 1.5 L

Calculations:

(a) <em>New volume </em>

V₂ = 2.5 L + 1.8 L

     = 4.3 L

(b) <em>New concentration </em>

c₂ = 7.0 × 2.5/4.3

    = 7.0 × 0.581

    = 4.1 mol·L⁻¹

6 0
3 years ago
A passenger elevator travels from the first floor to the 60th floor, a distance of 210 m, in 35s. What is the elevator’s speed?
d1i1m1o1n [39]

Answer:6m per second

Explanation:

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3 years ago
In a closed environment, when you burn wood, will the mass remain the same?
dezoksy [38]
Hello there!

When you burn the wood, some of the mass will go off as smoke. So, in a closed environment, the total mass of the area will stay the same, but the wood's mass will not.

I hope this helps!
Brady
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