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Amiraneli [1.4K]
3 years ago
9

The length and position of a shadow depends on the whattt of the light source

Chemistry
1 answer:
shtirl [24]3 years ago
4 0
Sunlight creates straight line shadows in the air. A point of light casts a sharp-edged shadow. The shadow can be traced on paper. The size of the shadow depends on the size of the object, the distance from the light to the object and the distance from the light to the screen.
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Which formula can represent hydrogen ions in an aqueous solution?
faltersainse [42]

Answer:

H30+(aq)

Explanation:

im almost postive this is correct ,but if not its OH-(aq)

6 0
3 years ago
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3 years ago
Read 2 more answers
A can of coke contains 25 mL of carbon dioxide gas at 100kPa. If you take it on a hike up Mount Everest and the pressure decreas
Mazyrski [523]

Answer:

50 mL

Explanation:

We can solve this problem by using Boyle's Law, which states that:

"For a fixed mass of an ideal gas kept at constant temperature, the pressure of the gas is inversely proportional to its volume"

Mathematically:

p\propto \frac{1}{V}

where

p is the pressure of the gas

V is the volume of the gas

The equation can be rewritten as

p_1 V_1 = p_2 V_2

where in this problem:

p_1 = 100 kPa is the initial pressure of the gas in the coke

V_1=25 mL is the initial volume

p_2=50 kPa is the final pressure

Solving for V2, we find the final volume:

V_2=\frac{p_1 V_1}{p_2}=\frac{(100)(25)}{50}=50 mL

7 0
4 years ago
For the reaction
tensa zangetsu [6.8K]

Answer:

45.2g produce x mole of CH4. we are given the mass of methane. mass (CH4)=45.2g. molar mass (CH4) = 12+4 =16g/mol. Mole=mass. molar mass. mole=45.2. 16. mole=2.8mol. therefore, if 45.2g produce 2.8mol as 1 mole of methane, the water produced is 2(2.8) we Are multiplying by 2 because the water is having 2 moles water mole is 5.6mol

Explanation:

45.2g produce x mole of CH4. we are given the mass of methane. mass (CH4)=45.2g. molar mass (CH4) = 12+4 =16g/mol. Mole=mass. molar mass. mole=45.2. 16. mole=2.8mol. therefore, if 45.2g produce 2.8mol as 1 mole of methane, the water produced is 2(2.8) we Are multiplying by 2 because the water is having 2 moles water mole is 5.6mol

3 0
3 years ago
The structure of the compound or molecule help predict the name of the compound. Given the binary molecule HCl, which statement
Snezhnost [94]

Answer:

The two nonmetals indicate that covalent naming rules apply.

Explanation:

8 0
4 years ago
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