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Nezavi [6.7K]
3 years ago
9

HELP ME NOW PLEASE 80 points

Chemistry
2 answers:
Ainat [17]3 years ago
5 0

Answer:

id.k sorry

Explanation:

Law Incorporation [45]3 years ago
4 0

Answer:

1. Algae

2. Insects

3. Crayfish

4. Trout

5. Herons

Explanation:

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Warm air has a natural tendency to sink, independent of any outside force.<br> true or false
bezimeni [28]

Answer:

false

Explanation:

warm air rises

hope this helps love

5 0
2 years ago
Which two factors affect the strength of<br> a metallic bond?
jeyben [28]

Answer: Number of protons and number of valance electrons.

Explanation:

There are three factors which determine metallic bond strength. greater the no of protons, greater will be attraction between nucleus and valance shell electrons and stronger will be metallic bond. greater no of valance electron, greater will be attractions between nucleus and electrons and stronger will be bond.

3 0
4 years ago
suppose you mix 100.0 g of water at 22.6 oc with 75.0 g of water at 75.4 oc. what will be the final temperature of the mixed wat
Arada [10]

The temperature of mixed water is 45.230C under the conditions stated.

<h3>How can the change in temperature when mixing water be calculated?</h3>

T(final) = (m1 T1 + m2 T2) / (m1 + m2), at which m1 and m2 are indeed the weight training of the water in the initial and 2nd canisters, T1 is the water temperature in the first container, and T2 is the water temperature in the second container, can be used to determine the final the water's temperature mixture.

<h3>Briefing:</h3>

The given parameters;

mass of the cold water, m = 100 g

initial temperature of the water, t₁ = 22.6 ⁰C

initial temperature of the hot water, t₂ = 75.4⁰ C

75 g is the hot water's mass.

specific heat capacity of water is 4.184 J/g⁰C

The mixture's final temperature is estimated as follows;

Based on the principle of conservation of energy;

Heat received by the ice water equals heat lost by the hot water.

mcΔθ₂ = mcΔθ₁

75 x 4.184 x (75.4 - T) = 100 x 4.184 x (T - 22.6)

75 x (75.4 - T) = 100 x (T - 22.6)

(75.4 - T) = 1.333(T - 22.6)

75.4 - T = 1.333T - 30.1258

75.4 + 30.1258 = 1.333T + T

105.5258 = 2.333T

T = 45.2318⁰C

To know more about temperature visit :

brainly.com/question/29386637

#SPJ4

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What is the abbreviation for water?
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Abbreviation is: H2O

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Which property of iron is a physical property
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Physical property includes color, taste, or feel of the object. answer us A.)
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